CN106851951A - X-ray tube heater current data correcting method and system - Google Patents

Abstract

The present invention discloses a kind of X-ray tube heater current data correcting method and system.The method includes obtaining the corresponding first tube current value to be corrected of the first check point and filament current value to be corrected；According to the described first tube current value to be corrected and the filament current value to be corrected, a payoff operation is performed；Determine an actual tube current value in the payoff operation；Determine the difference of the actual tube current value and the first tube current value to be corrected；And first check point is corrected according to the difference.

Description

X-ray tube heater current data correcting method and system

【Technical field】

The application is related to medical imaging device, more particularly to a kind of medical imaging device X-ray tube filament control system And method.

【Background technology】

Computer tomography (Computed Tomography, CT) equipment has in medical imaging field widely should With.In CT imaging processes, it is possible to use X-ray tube carries out unwrapping wire.Because different tissues density is different, to the absorption journey of X-ray Degree is different, and CT equipment can complete the image to tissue.Under different CT scan scenes, single X-ray tube filament It is higher or relatively low that running parameter (for example, filament pre-heating electric current, preheating time etc.) may result in filament temperature, so can not expire The imaging requirements of foot difference CT scan.Accurately and efficiently realize being still at this stage to the correction of X-ray tube filament Difficult point.Accordingly, it would be desirable to a kind of system and method solves the above problems.

【The content of the invention】

Present application discloses a kind of X-ray tube control system and method.

According to the one side of the application, there is provided a kind of X-ray tube heater current data correcting method.The method can be with Including obtaining the corresponding first tube current value to be corrected of the first check point and filament current value to be corrected；School is treated according to described first Positive tube current value and the filament current value to be corrected, perform a payoff operation；Determine a reality in the payoff operation Border tube current value；Determine the difference of the actual tube current value and the first tube current value to be corrected；And according to the difference Value correction first check point.

According to further aspect of the application, there is provided a kind of X-ray tube heater current data correction system.The system can With including a correction module and a warm-up block.It is corresponding that the correction module can be configured as the first check point of acquisition First tube current value to be corrected and filament current value to be corrected；According to the described first tube current value to be corrected and the lamp to be corrected Silk current value, performs a payoff operation；Determine an actual tube current value in the payoff operation；Determine the actual pipe The difference of current value and the first tube current value to be corrected；And first check point is corrected according to the difference.

It is according to further aspect of the application, there is provided a kind of computer-readable medium of non-transitory including executable Instruction, when the instruction is by least one computing device, causes at least one processor to realize a kind of method.The method Can include being corrected X-ray tube heater current data.The method can include obtaining the first check point corresponding first Tube current value to be corrected and filament current value to be corrected；According to the described first tube current value to be corrected and the filament electricity to be corrected Flow valuve, performs a payoff operation；Determine an actual tube current value in the payoff operation；Determine the actual tube current The difference of value and the described first tube current value to be corrected；And first check point is corrected according to the difference.

It is described to include judging according to difference correction first check point according to some embodiments of the present application It is pre-conditioned whether the difference meets, and when the difference meets described pre-conditioned, can generate first school A corresponding heater current correction data on schedule.

According to some embodiments of the present application, wherein judge the difference whether meet it is described it is pre-conditioned can include sentence Whether the difference of breaking is more than a first threshold and less than a Second Threshold.

According to some embodiments of the present application, wherein correct first check point according to the difference can further wrap Include when the difference is unsatisfactory for described pre-conditioned, the described first tube current value to be corrected is updated to the actual tube current Value, and according to renewal after the first tube current value to be corrected and the filament current value to be corrected can generate it is described first correction The corresponding heater current correction data of point.

According to some embodiments of the present application, it is described according to renewal after the described first tube current value to be corrected and described treat Correction filament current value generates the corresponding heater current correction data of first check point and may further include, and sets One iterations is an initial value；The actual tube current value is updated to according to by the described first tube current value to be corrected Situation, updates the iterations；Compare the iterations and an iterations threshold value, and when the iterations is big When the iterations threshold value, mistake is reported.

According to some embodiments of the present application, when the actual tube current value can correspond to a unwrapping wire in a unwrapping wire Between a tube current value putting or the average value corresponding to multiple tube current values at multiple unwrapping wire time point in a unwrapping wire At least one of.

According to some embodiments of the present application, methods described may further include the multiple check points of correction, the multiple Check point can correspond to a tube voltage value, and the multiple check point can include first check point and one second correction Point, second check point can correspond at least one second tube current values to be corrected, the first tube current value to be corrected First interval is may be located at, the second tube current value to be corrected may be located at outside the first interval.

According to some embodiments of the present application, methods described may further include carries out school to first check point Just, the 4th heater current correction data is determined；According to the 4th heater current data, data fitting is carried out；According to the number According to fitting result, the corresponding second tube current value to be corrected of the tube voltage value is determined, and school is treated based on described second Positive tube current value, determines second check point.

According to some embodiments of the present application, methods described may further include the first tube voltage value of determination corresponding the One heater current correction data；Determine the corresponding second heater current correction data of the second tube voltage；And based on described first The difference of tube voltage value and the second tube voltage value, the first heater current correction data and the second heater current school At least one of correction data, it may be determined that the corresponding triple-filament current correction data of the 3rd tube voltage.

A part of bells and whistles of the application can be illustrated in the following description.By to following description and accordingly The inspection of accompanying drawing or the understanding of production or operation to embodiment, a part of bells and whistles of the application is for art technology Personnel are obvious.The characteristic of present disclosure can be by the method for the various aspects to specific embodiments described below, means Realize and reach with the time of combination or using benefiting.

【Brief description of the drawings】

Fig. 1 show an application scenarios schematic diagram for imaging system according to some embodiments of the present application；

Fig. 2 show a schematic diagram for computer according to some embodiments of the present application；

Fig. 3 show a schematic diagram for X-ray tube heater current control system according to some embodiments of the present application；

Fig. 4 show a module map for imaging control apparatus according to some embodiments of the present application；

Fig. 5 show a flow chart for X-ray tube heater current control program according to some embodiments of the present application；

Fig. 6 show a flow chart for X-ray tube filament correction program according to some embodiments of the present application；

Fig. 7 show a kind of flow chart of the X-ray tube filament correction program according to some embodiments of the present application；

Fig. 8 show the heater current correction data generation program of a check point according to some embodiments of the present application Flow chart；

Fig. 9 show a flow chart for X-ray tube preheating plan generation program according to some embodiments of the present application；

Figure 10 show a flow for X-ray tube preheating plan generation program according to some embodiments of the present application Figure；

Figure 11 show the flow chart that program is generated according to a filament pre-heating plan of some embodiments of the present application；With And

Figure 12 show the flow chart that program is generated according to a filament pre-heating plan of some embodiments of the present application.

【Specific embodiment】

In order to illustrate more clearly of the technical scheme of embodiments herein, below will be to make needed for embodiment description Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some examples or the implementation of the application Example, for one of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings The application is applied to other similar scenes.Unless obviously or separately explained from language environment, identical label generation in figure The identical structure of table or operation.

As shown in the application and claims, unless context clearly points out exceptional situation, " one ", " one ", " one The word such as kind " and/or " being somebody's turn to do " not refers in particular to odd number, may also comprise plural number.It is, in general, that term " including " only point out bag with "comprising" Include the step of clearly identifying and element, and these steps and element do not constitute one it is exclusive enumerate, method or equipment It is likely to comprising the step of other or element.

Although the application is made that various references to some of the system according to embodiments herein module, however, Any amount of disparate modules can by using and operate on client and/or server.The module is merely illustrative, And the different aspect of the system and method can use disparate modules.

Flow chart used herein is used for illustrating the operation according to performed by the system of embodiments herein.Should Understand, before or operation below not necessarily accurately carry out in sequence.Conversely, can be processed according to inverted order or simultaneously Various steps.It is also possible to other operations are added to during these, or a certain step or number step behaviour are removed from these processes Make.

The application is related to a kind of X-ray tube filament in medical imaging system, more particularly to medical imaging system to control system System and method.The filament control method can include being corrected heater current and generating filament pre-heating plan.

During being corrected to heater current, point to be corrected for, the filament control system recoverable Corresponding relation between heater current and tube current.The point to be corrected can be corresponded under certain focus size and tube voltage , the data point being made up of a filament current value and a tube current value.During correction, to be corrected for one Tube current value, the filament control system can perform a payoff operation, and obtain one during unwrapping wire actual pipe electricity Flow valuve.The filament control system can compare the size of the tube current value to be corrected and the actual tube current value and count Calculate its difference.The filament control system can be corrected according to the difference to the tube current value to be corrected.For example, If the difference meets certain pre-conditioned, the filament control system can record actual tube current value and heater current Value is used as the heater current correction data after one group of correction.If again for example, the difference is unsatisfactory for pre-conditioned, the filament Tube current value to be corrected can be updated to the actual tube current value by control system, and carry out aforementioned corrected process again, directly The heater current correction data of aforementioned condition is met to the iteration or acquisition for completing certain number of times.

For same focus, same tube voltage value, the filament control system can obtain tube current according to preceding method The heater current correction data of value check point within the specific limits.The filament control system can be to the heater current school Correction data is fitted and obtains the one group match value of check point of the tube current value outside aforementioned range.Based on these fittings Value, the filament control system can carry out the correction of preceding method, generate new heater current correction data.In some implementations In example, if these match values belong to excessive or too small end-point data, in order to avoid filament excessively stream etc., the filament control System can directly using match value as heater current correction data.According to preceding method, the filament control system can be obtained Obtain one group of heater current correction data for corresponding to the tube voltage value.

For different tube voltage values, filament control system can generate different heater currents according to preceding method Correction data.For example, the filament control system can generate the first heater current correction number corresponding to the first tube voltage value According to, it is also possible to second heater current correction data of the generation corresponding to the second tube voltage value.Based on the first heater current school Correction data and the second heater current correction data, the filament control system can correspond to the 3rd pipe using interpolation algorithm generation The triple-filament current correction data of magnitude of voltage.

The filament pre-heating in the works, can include one or more filament pre-heating electric currents and with one or more of lamps The corresponding temporal information (such as one or more time points, time period etc.) of the pre- thermocurrent of silk.In generation heater current preheating During plan, the method for the filament control system goes for different scenes.In one scenario, the filament Control system can determine a filament pre-heating plan based on unwrapping wire unwrapping wire start time in the works, unwrapping wire tube current value. In one scene, the time interval of a preceding unwrapping wire and next time unwrapping wire is shorter, and X-ray tube filament fails to cool down completely.Institute Stating filament control system can generate a filament pre-heating plan based on a preceding unwrapping wire plan, current unwrapping wire plan.At one In scene, after preheating plan is performed, imaging system fails to receive the instruction of X-ray unwrapping wire.The filament control system can be based on X The situation of ray unwrapping wire instruction updates preheating plan, prevents the phenomenon of overheat.

Fig. 1 show an application scenarios schematic diagram for imaging system 100 according to some embodiments of the present application.Imaging System 100 can include the 130, display device of terminal of imaging control apparatus 120, of imaging device 110, 140th, a database 150 and a network 160.In certain embodiments, at least partly can in imaging control apparatus 120 Realized by computer 200 as shown in Figure 2.

Different component/parts in imaging system 100 can be in communication with each other.For example, imaging control apparatus 120 can be with net Network 160 is connected with each other or communicates, or directly with imaging system 100 or one part (for example, imaging device 110, terminal 130 Deng) be connected with each other or communicate, or two ways combination.For example, imaging control apparatus 120 can be to the data of terminal 130, from end End 130 obtains one or more user instructions, sends one or more control instructions etc. and database 150 to imaging device 110 Exchange data etc..Imaging device 110, imaging control apparatus 120, terminal 130, display device 140, database 150 and imaging Data communication between the miscellaneous equipment that system 100 is potentially included, can be by data wire, network 160 etc. or aforesaid way Combine to realize.

Imaging device 110 can be used for obtaining imaging data.For example, imaging device 110 can be swept to target object Retouch, and obtain associated data (for example, scan data etc.).Imaging device 110 can be an equipment, or an equipment Group.In certain embodiments, imaging device 110 can be a medical information collecting device, for example, a positron emission meter Calculation machine tomoscan (Positron emission tomography (PET)) equipment, a single photon emission computed tomography Imaging (Single-Photon Emission Computed Tomography (SPECT)) equipment a, electronic computer breaks Layer scanning (Computed Tomography (CT)) equipment, a magnetic resonance imaging (Magnetic Resonance Imaging (MRI)) equipment etc..The equipment can be used alone, it is also possible to be used in combination.Imaging device 110 can be a PET-CT Equipment, a PET-MRI equipment, or SPECT-MRI equipment etc..The scan data can be that imaging device 110 is launched The signal data (for example, X-ray signal, magnetic field signal) for going out is passed through after a target (for example, human body), by imaging device 110 data related to the signal data for obtaining.The scan data can be CT scan data, MRI scan data, surpass The combination of one or more of sound scan data, X-ray scan data etc..

Imaging device 110 can be based on the data genaration image for obtaining.For example, imaging device 110 can be based on scanning number According to one image of generation.Scan data can come from imaging device 110 or database 150.Scanning is included in the image of generation The information of object.The operation of scan data generation image can include data investigation, Fourier transform, be converted into signal intensity One or more in the operation such as gray value, three-dimensional reconstruction, multi-modal fusion.The image of generation can be two dimensional image (for example, One tangent plane picture etc.), three-dimensional reconstruction image, four-dimensional reconstruction image, multi-modality images etc..The image of generation can be gray-scale map Picture, black white image, bianry image or coloured image etc..During based on scan data generation image, imaging control apparatus 120 can further use one or more data processing operations, for example, data prediction, data conversion processing, data are clear Wash one or more of the combinations such as treatment, data process of fitting treatment, data weighting treatment.

Imaging device 110 can include a scan components.The scan components can be scanned to target object.Institute It can be a radioactive scanning equipment to state scan components.The radioactive scanning equipment can include a radioactive source.It is described Radioactive source can launch radioactive ray.The radioactive ray can include, one kind in corpuscular rays, Photon beam etc. or Various combinations.The corpuscular rays can including neutron, proton, alpha ray, electronics, μ media, heavy ion etc. in one kind or Various combinations.Shown Photon beam can including X-ray, gamma-rays, ultraviolet, laser etc. in one or more of group Close.For example, Photon beam can be X-ray.Correspondingly, imaging device 110 can be a CT system, a digital ray One or more therein of imaging system (DR), multi-modal medical image system etc..The multi-modal medical image system Can be including one or more in CT-PET systems, SPECT-MRI systems etc..Imaging device 110 can also be penetrated including one Line probe unit (not shown in figure 1) with complete to generation X-ray detection X etc..

Imaging control apparatus 120 can perform imaging control.The imaging control can be to x-ray imaging system 100 In one or more component or equipment (for example, scan components, display device 140 and terminal 130 in imaging device 110 Deng) control.For example, imaging control apparatus 120 can generate a filament pre-heating plan, imaging device 110 can be according to institute State filament pre-heating plan and perform filament pre-heating operation.Imaging control apparatus 120 can control imaging device by control instruction 110.The control instruction can be based on imaging control apparatus 120 generation data, or according to from other equipment (for example, terminal 130) data (for example, user instruction etc.) generation for obtaining.In certain embodiments, imaging control apparatus 120 can be according to one Individual or multiple user instruction generation control instructions.For example, control instruction can be one or more parameters to imaging device 110 Adjustment.These parameters can including filament preheating time, filament pre-heating electric current, tube voltage, tube current etc. in one or many Individual combination.Imaging device 110 can perform the operation such as filament pre-heating according to these control instructions.

In certain embodiments, imaging control apparatus 120 can be transmitted or from the receive data of database 150 to database 150 According to.The data can be directly or indirectly from the nonce generated in imaging device 110, imaging control apparatus 120 itself According to or non-provisional data or for associated image control device 120 be imaged data etc. of control.

In certain embodiments, imaging control apparatus 120 can be one or one group of computer.For constituting imaging control Be can be wired between one group of computer of equipment 120 or wireless connection (for example, by network 160).It is imaged for constituting Between one group of computer of control device 120 capable communication is tapped into by one or more equipment rooms.Imaging control apparatus 120 can be with Same geographical position is arranged on imaging device 110.Imaging control apparatus 120 can be with framework beyond the clouds.In some embodiments In, imaging control apparatus 120 can be a building block of imaging device 110.Terminal 130 can be imaging device 110 Building block, or an independent device.

Terminal 130 can be connected or communicate with imaging control apparatus 120.Terminal 130 can allow one or more users The generation or display of the control image such as (for example, a doctor, an image technology person) are (for example, be displayed in display device 140 On).Terminal 130 can be in an input equipment, output equipment, a control panel (not shown in figure 1) etc. One or more.The input equipment can include keyboard, touch control device, mouse, button, audio input device (for example, Mike Wind etc.), image input device (for example, scanner, image first-class), remote control equipment is (for example, remote control, long-range connection Computer etc.) and data input device (for example, CD-ROM drive, USB port etc.) etc. one or more.User is defeated by the input equipment Access customer peration data.The mode of user input data include but is not limited to mouse action, input through keyboard, button operation, touch-control, Acoustic control, expression operation, somatosensory operation, nerve signal operate etc. in one or more of combination.In certain embodiments, user Can by the input equipment in terminal 130, imaging control apparatus 120, imaging device 110 and/or imaging system 100 its His equipment/component that may be present is directly or indirectly input into instrument parameter, data processing parameters, Image Processing parameter, image and shows Show the input information such as parameter.These input information may come from external data source (for example, floppy disk, hard disk, CD, storage core The combination of one or more in piece, network 160 etc.).

Display device 140 can be with display information.Described information can include the mistake during filament correction and filament pre-heating In data for using and/or generating during false information, filament pre-heating plan, unwrapping wire plan, filament correction or filament pre-heating etc. One or more of combination.Display device 140 can include a liquid crystal display (liquid crystal display (LCD)), light emitting diode indicator (light emittingdiode (LED)-based display), a flat board One kind in display or flexible displays (or TV), cathode-ray tube (cathode ray tube (CRT)) etc. or It is various.

Database 150 can be used for data storage.The data of the storage can be that imaging system 100 is generated or obtained Data, the user that data, such as scan data, the one or more assemblies of imaging system 100 are produced when running are by terminal 130 Data that the data of input, user are obtained by network 160 from other data source (not shown in figure 1)s etc..The number of the storage According to can be including the data (for example, tube current, heater current etc.) of X-ray tube.Database 150 can be one has storage work( The combination of the equipment/component or several equipment/components of energy.In certain embodiments, database 150 can include one or more The independent equipment with data storage function, such as one computer or server etc..Database 150 can include this Ground memory or remote memory (for example, the cloud storage of framework in network 160 etc.).In certain embodiments, data Storehouse 150 can include the component with data storage function, such as one disk or a disk array in an autonomous device Deng.Database 150 can include imaging system 100 in any equipment (for example, imaging device 110, imaging control apparatus 120, Terminal 130 etc.) in have store function component.

In certain embodiments, database 150 can store scan data.The scan data can come from imaging device 110th, terminal 130 (for example, being obtained by a movable storage device socket), network 160 etc..For example, database 150 can be deposited One CT scan data of storage and/or MRI scan data etc..In certain embodiments, database 150 can be with storage imaging control Ephemeral data/image that control equipment 120 and/or terminal 130 are produced when normally running or non-provisional data/image etc..For example, number Some system operation temporary files, scan image, output image, ephemeral data/image etc. can be stored according to storehouse 150.At some In embodiment, database 150 can store information or the number based on the generation of these information that terminal 130 is collected into from user According to such as user's peration data, user input data, user instruction, certificate data etc..

In certain embodiments, database 150 can be stored for running imaging device 110, imaging control apparatus 120 And/or the program code (for example, software, operating system etc.) of terminal 130 etc..Database 150 can also store one or more Algorithm/model data, supplemental characteristic, reference data/image etc..Described program code, algorithm/model data, supplemental characteristic and Normal data etc. can be added in the program for installing the one or more functions for realizing imaging system 100 by installation procedure In the database 150, or by user added in the database 150 by terminal 130 or network 160.

Transmission information between each equipment/component that network 160 can be used in imaging system 100.Network 160 can be with It is the combination of an independent network or multiple heterogeneous networks.For example, network 160 can include LAN (local area Network (LAN)), wide area network (wide area network (WAN)), public switch telephone network (public switched Telephone network (PSTN)), one or more in virtual network (Virtual Network (VN)) etc. of combination. Network 160 can include multiple Network Access Points.Network 160 using landline network infrastructures, radio network frame and can have Line/wireless network hybrid structure.Cable network can be using one or more line such as metallic cable, compound cable, optical cable The mode of cable combination.The transmission means of wireless network can include bluetooth (Bluetooth), wireless network (Wi-Fi), purple honeybee (ZigBee), near-field communication (Near Field Communication (NFC)), cellular network (including GSM, CDMA, 3G, 4G Deng) etc..

It should be noted that only for convenience of description, the application can not be limited for the description of imaging system 100 above System is within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, understanding the principle of the system Afterwards, the change in various details, any combination (example of such as multiple equipment/components/modules can be carried out to imaging system 100 Such as, imaging control apparatus 120, database 150 and terminal 130 are combined as equipment etc.), individual equipment/components/modules Partition is (for example, imaging control apparatus 120 are split into one or equipment is used to perform respectively one of imaging control apparatus 120 Or multiple functions etc.), for the related equipment/component (for example, filter etc.) of the addition non-invention of imaging system 100, will be main Connected mode between equipment/component is wanted from being directly connected to be changed to be indirectly connected with (for example, add one or more signal transmitting and receivings setting Standby, transcoding device etc.), change the type of imaging device 110 so as to the system is applied into different fields etc., but these change All without departing from scope of the claims.

Fig. 2 show a schematic diagram for computer 200 according to some embodiments of the present application.Computer 200 can be with It is applied to imaging system 100, any equipment/component that imaging system 100 includes is (for example, imaging control apparatus 120, terminal 130 Deng), these equipment/components functional module (for example, correction module 410, warm-up block 420 etc.), these functional modules for including Comprising functional unit (for example, tube current determining unit 412, preheating time determining unit 423 etc.) etc. realizing the system, set One or more function that standby, component, module or unit etc. have in this application.Computer 200 by its hardware device, Software program, firmware and combinations thereof can realize one or more functions that imaging system 100 has (for example, lamp Silk correction, generation of filament pre-heating plan etc.).Computer 200 can have common application scene or application-specific scene (example Such as, for medical image generation, treatment or display etc.).Computer 200 can be one or one group of computer.For convenience For the sake of, only depict a computer 200 in Fig. 2, but the One function of imaging system described herein 100 (for example, Scan data collection, data processing, image procossing etc.) can be in a distributed fashion, by one group of similar computer platform institute Implement (concurrently or sequentially), with the treatment load of decentralized system.

Computer 200 can include internal communication bus 210, central processing unit (Central Processing Unit (CPU)) 220, data storage cell is (for example, read-only storage (Read-only Memory (ROM)) 230, random access memory Device (Random Access Memory (RAM)) 240, hard disk 250 etc.), input output assembly 260, COM1 270 etc..It is interior Portion's communication bus 210 is used to transmit data between the different components of computer 200.Central processing unit 220 is used to perform one Or multiple instruction (including user instruction, programmed instruction, control instruction etc.) and undertake one or more algorithms (for example interpolation is calculated Method etc.) computing.Central processing unit 220 can include a chip or a chipset.One kind of imaging control apparatus 120 or Various functions, can be realized by central processing unit 220.Computer 200 can further include a graphics process list First (Graphics Processing Unit (GPU), Fig. 2 is not shown) is used to assist central processing unit 220 to process graph data. The GPU can be an independent component in computer 200, or be encapsulated in same with CPU On chip.

Read-only storage 230, random access memory 240, hard disk 250 can store Computing, compunication, Realize that (description in greater detail may be referred to number in Fig. 1 for the various data files that are related to during computer function etc. or program According to the associated description in storehouse 150).Input output assembly 260 can support that computer 200 enters with one or more ancillary equipment 280 Row data communication.Input output assembly 260 can include one or more connectivity ports, such as COM (PORT COM, Communication port) port, USB (USB, Universal Serial Bus) port, HDMI (high definitions Clear degree multimedia interface, High-Definition Multimedia Interface) port, VGA (Video Graphics Array, Video Graphics Array) port, DVI (DVI, Digital Video Interactive) end Mouth, PS/2 interfaces etc..Ancillary equipment 280 can carry out data and lead to by input output assembly 260 and internal communication bus 210 News.Ancillary equipment 280 can be the equipment for being input into or exporting, for example display, printer, mouse, keyboard, handle, touch One or more in screen, camera, loudspeaker etc. of combination.Ancillary equipment 280 can include one or many in terminal 130 Individual input module and output precision (description in greater detail may be referred to the associated description of terminal 130 in Fig. 1).COM1 270 can carry out data communication by one or more networks, and (description in greater detail may be referred to the phase of network 160 in Fig. 1 Close description).

Fig. 3 show a signal for X-ray tube heater current control system 300 according to some embodiments of the present application Figure.X-ray tube heater current control system 300 can include 120, and of high pressure generator 320 of an imaging control apparatus One X-ray tube 330.

Imaging control apparatus 120 can be communicated with high pressure generator 320.For example, imaging control apparatus 120 can be controlled The amplitude of the voltage that high pressure generator processed 320 is produced.In certain embodiments, imaging control apparatus 120 can occur to high pressure Device 320 sends an instruction, and the instruction can include the instruction of filament pre-heating, X-ray loading schedule instruction etc..Institute It can be an instruction for performing X-ray loading operation to state the instruction of X-ray loading schedule.The X-ray loading schedule instruction can Be one comprising X-ray loading needed for parameter (for example, X-ray load time, X-ray radiation intensity etc.) instruction.According to The X-ray loading schedule instruction can determine the relevant parameter of X-ray loading (for example, X-ray load time, X-ray radiation Intensity etc.).High pressure generator 320 can receive the instruction and perform one or more operation.The operation can include adjusting Amplitude of voltage that section high pressure generator 320 is produced etc..High pressure generator 320 can be to the feedback information of imaging control apparatus 120. Described information can including the voltage amplitude of high pressure generator 320 etc. information.Imaging control apparatus 120 can include a control Platform 121 and a frame processor 122.

One or more assemblies (for example, primary processor 1212, heating model 1213 etc.) in console 121 can be to machine Frame processor 122 sends information (for example, heater current information, preheating time information etc.).Frame processor 122 can be according to institute Information is stated to produce an instruction (for example, a filament pre-heating instruction etc.) and be sent to high pressure generator 320.Console 121 can With including 1211, primary processor 1212 of a user interface and a heating model 1213.

User interface 1211 can receive setting of the user to the parameter of imaging system 100.The parameter can be one Unwrapping wire plan parameters, such as one tube voltage, tube current, unwrapping wire time started etc..For example, passing through user interface 1211 users can be set to the unwrapping wire time started in a payoff operation as system 100.

Primary processor 1212 can be used for the treatment of information.Described information can be a unwrapping wire plan parameters (for example, one Individual tube voltage, tube current, unwrapping wire time started etc.), heating model etc..The treatment operation can include life Into a filament pre-heating plan, a filament preheating time is determined, correct the tube current of filament and the corresponding relation of heater current, Perform a kind of mathematical operation (for example, interative computation, interpolation arithmetic etc.) etc..

Primary processor 1212 can obtain information from user interface 1211, heating model 1213, database 150 etc..Main place Reason device 1212 can be sent to frame processor 122 information after treatment, it is also possible to preserve to data the information after treatment Storehouse 150 or other storage devices.The mode of described information treatment can include storing information, classifying, calculating, changing In one or more of combination.

In certain embodiments, primary processor 1212 can obtain a unwrapping wire plan from user interface 1211.Main process task Device 1212 can generate a filament pre-heating plan according to the unwrapping wire plan.The filament pre-heating plan can include one Or multiple filament pre-heating electric currents, and the information such as temporal information corresponding with one or more of filament pre-heating electric currents.For example, The filament pre-heating plan can be included in a period of time (for example, in time period of 1.0s to 1.5s), with certain Filament pre-heating electric current (for example, electric current of 3.5A) is preheated.The filament pre-heating electric current can correspond to filament pre-heating mistake One heater current of journey.The heater current can be supplied to the voltage of filament to be determined by high pressure generator 320.Main process task The filament pre-heating plan can be sent to frame processor 122 by device 1212.Frame processor 122 can be according to the filament Preheating plan produces a filament pre-heating instruction.High pressure generator 320 can perform preheating behaviour according to filament pre-heating instruction Make.

In certain embodiments, primary processor 1212 can perform the correct operation of heater current.The correct operation can With including the correction to the first check point, the second check point.First check point can be one or more default corrections Point (for example, data of the tube current that manufacturer provides when X-ray tube is dispatched from the factory and heater current).Second check point can be one Individual or multiple match values.The technology used in correction can include interative computation technology, curve fitting technique, interpolation arithmetic technology Deng.

Heating model 1213 can be used for a foundation for heating model.Heating model 1213 can be stored in advance in main place In the memory on the inside of reason device 1212 or periphery.Primary processor 1212 can obtain one or more and add from heating model 1213 Thermal model.The heating model can include tube voltage, tube current, a filament preheating time length and a lamp Corresponding relation between the pre- thermocurrent of silk.The heating model can exist in the form of tables of data, can be in the form of function In the presence of.

In certain embodiments, setting up a model can include determining that a model (for example, performing 940 descriptions in Fig. 9 One or more steps, or perform Figure 11 in 1140 description one or more steps).In certain embodiments, one is set up Individual model can include being selected from one or more heating model a heating model (for example, being selected from table 1 or table 2 Select one to be used as heating model).In certain embodiments, set up a model can include from memory read or with Other manner obtains the model.

High pressure generator 320 can produce a high voltage, and be supplied to X-ray tube 330.The high voltage can be applied It is added between a negative electrode of X-ray tube 330 and an anode.Merely exemplary, the high voltage can be a voltage In the range of (for example, in the range of from 30kV to 150kV) voltage.High pressure generator 320 can also provide a voltage to X-ray The cathode filament of pipe 330.The cathode filament of X-ray tube 330 can produce a heater current under the voltage.Only make It is example, the heater current can be the numerical value of (for example, in the range of from 3A to 3.5A) in a current range, the filament Electric current can be a constant numerical value (for example, 3A, 4A or 6.5A etc.).

X-ray tube 330 can produce X-ray beam.X-ray tube 330 can be a cold-cathode tube, a high vacuum heat the moon Pole pipe, rotating-anode tube etc..The shape of the X-ray beam can include linear, pencil shape, sector, cone, wedge shape, One or more in irregular shape etc. of combination.X-ray tube 330 can include negative electrode, an anode and a shell (not shown in Fig. 3).The negative electrode can be with launching electronics.The anode can receive electron bombardment, and produce X-ray beam.Institute Stating anode and the negative electrode can be sealed in the shell.The shell can provide a vacuum environment to ensure electronics Motion is unobstructed.The shell can be made up of heat resistant glass or metal framework.The negative electrode can include a filament.Institute Stating filament can be made up of a kind of high melting point metal materialses (for example, tungsten etc.).It is described when there is heater current to flow through the filament Filament is heated can discharge electronics.In the presence of a high voltage of the electronics between the negative electrode and the anode, can Clashed into the anode with high speed.After the electronics reaches the anode, simultaneously there is energy conversion in retard motion, the electronics A part of kinetic energy can be converted into radiation energy.The radiation energy can be released in the form of X-ray beam.The negative electrode and the anode Between high voltage electric field be properly termed as tube voltage.The electric current that electronics high-speed motion between the negative electrode and the anode is formed can To be referred to as tube current.Electronics is absorbed on the anode target surface and produces the region of X-ray to be properly termed as focus.

It is a module map for imaging control apparatus 120 that Fig. 4 is shown according to some embodiments of the present application.Imaging control Control equipment 120 can be deposited including an input/output module 430 of warm-up block 420, of correction module 410, and one Storage module 440.

Correction module 410 can perform filament correct operation.The filament correct operation can include to a tube current Corresponding relation with a heater current is corrected.The correct operation can include determining that heater current correction data.Institute Stating correct operation can also include carrying out data fitting based on the heater current correction data.The correct operation can include According to the corresponding first heater current correction data of first tube voltage value, a second tube voltage value corresponding second Heater current correction data, the corresponding triple-filament current correction data of one the 3rd tube voltage value of generation.The filament correction The technology used in operation can be including interative computation technology, curve fitting technique, interpolation arithmetic technology etc..The curve matching Technology can be including least square method etc..The interpolation arithmetic technology can include Lagrange interpolation algorithms, Newton interpolation Algorithm, Hermite interpolation algorithms etc..

Correction module 410 can include 411, tube current determining unit 412 of a data fitting unit and a school Correction data memory cell 413.

Data fitting unit 411 can perform data fit operation.The data fit operation can according to it is any with into Completed as the data of the correlation of system 100.For example, the data can include tube current, heater current, Jiao Point size, tube voltage etc..The data fit operation, can be included under specific focal point size and tube voltage value, it is determined that Corresponding relation between the tube current and the heater current.Data fitting unit 411 can use one or more data Fitting technique is fitted the data.The Technology of Data Fitting can be including linear fit technology and curve fitting technique etc..Example Such as, the Technology of Data Fitting can be least square method etc..

Data fitting unit 411 can determine one or more second check points according to fitting result.Second correction Point can be tube current value at a current value interval (for example, the current value outside the first tube current value interval is interval) Check point.For example, it is the situation of 70kV that table 1 is shown corresponding to focus size 1 and tube voltage value, second check point can Be tube current value be located at 30mA~300mA interval outside check point.For example, tube current value be 10mA, 400mA, 500mA and Check point of 600mA etc..

Tube current determining unit 412 can determine an actual tube current value.The actual tube current value can be correspondence It is multiple during in the tube current value of a special time (for example, time point, a time period etc.), or based on unwrapping wire The numerical value that the tube current value of time (for example, multiple time points, multiple time periods etc.) is calculated is (for example, multiple time pipe electricity The average value of flow valuve) etc..The actual tube current value can be the actual tube current value or multiple unwrapping wire during a unwrapping wire In actual tube current value.For example, during a unwrapping wire, the tube current value of T1 times is the first numerical value (for example, mA1), The tube current value of T2 times is second value (for example, mA2), and the tube current value of T3 times is third value (for example, mA3). In some embodiments, the actual tube current value can be the first numerical value (mA1), second value (mA2) and/or third value (mA3).In certain embodiments, the actual tube current value can also be the first numerical value (mA1), second value (mA2), the 3rd The average value of numerical value (mA3).

Correction data memory cell 413 can store one or more correction data.The correction data can include Correction point data, heater current correction data.The correction point data can include the set of one or more check points.It is described One check point can be including a focus size, tube voltage value, a tube current value and a heater current etc..It is described Check point can be acquiescence point or match point.It is described acquiescence point can be tube current value in a default scoping (for example, in table 1 Shown 30mA~300mA) in check point.The data of the acquiescence point can be default data (for example, X-ray tube goes out During factory, the data provided by manufacturer).The interpolation point can be check point of the tube current value scope outside default scoping.Institute Stating interpolation point can also include a maximum end points and a minimum end points (for example, the match point in table 1).The interpolation point can Be according to data fitting result obtain check point.The heater current correction data can correspond to a check point, bag Include a tube current data and a heater current data.

In certain embodiments, correction point data can include one or more data as shown in table 1.School in table 1 Positive point data can correspond to a specific filament current value (for example, 10mA).Check point data can include focus in table 1 Size, tube voltage value, tube current value.In certain embodiments, a focus size can correspond to multiple tube voltage data.Example Such as, focus size 1 can correspond to multiple tube voltage values, be respectively 10kV, 80kV, 100kV, 120kV and 140kV.In some realities Apply in example, a tube voltage can correspond to multiple tube current data.For example, as shown in table 1, in the case of focus size 1, pipe electricity Pressure value 70kV can correspond to multiple tube current values, be respectively 6mA, 10mA, 30mA, 60mA, 120mA, 200mA, 300mA, 400mA, 500mA, 600mA and 610mA.

Table 1 corresponds to the correction point data of specific heater current, different focus sizes and tube voltage value

Warm-up block 420 can generate filament pre-heating plan.The filament pre-heating plan can include one or more lamps Silk preheating current value, and the information such as temporal information corresponding with one or more of filament pre-heating current values.The generation The operation of filament pre-heating plan can include determining that a filament temperature, determine a preheating time length, sets up a heating Model etc..Warm-up block 420 can include 421, preheating time determining unit 423 and of a filament temperature determining unit Individual preheating plan generation unit 425.

Filament temperature determining unit 421 can determine filament temperature.The determination of the filament temperature can be to determine filament The initial value of temperature.The determination of the filament temperature can be to determine the equivalent description value of filament temperature.The filament temperature Equivalent description value can describe a thermionic emission ability for filament.For example, the thermionic energy of filament, energy level and surface potential Build etc..In certain embodiments, filament temperature determining unit 421 can according to a tube voltage value for the first unwrapping wire, one Between at the beginning of one unwrapping wire tube current value, end time, second unwrapping wire of first unwrapping wire and/or a heating model (for example, filament radiating table), determines the filament temperature.The heating model can be included in the tube voltage of first unwrapping wire Value, under tube current value, the filament temperature and a corresponding relation for unwrapping wire time interval.For example, the heating model can be with Exist in the form of the filament radiating table shown in table 5 (referring to the description on Figure 11).Again for example, the heating model can be with The form of function is present.The unwrapping wire time interval can include the end time of first unwrapping wire and second unwrapping wire The time interval of time started.In certain embodiments, filament temperature determining unit 421 can be from imaging device 110 directly Obtain the filament temperature.For example, imaging system 100 can include a thermometer for measurement filament temperature.Filament temperature is true Order unit 421 can obtain the filament temperature from the thermometer.

Preheating time determining unit 423 can determine preheating time information.The preheating time information can include one Preheating time started, preheating end time, unwrapping wire time started, unwrapping wire end time, a filament pre-heating Time span etc..The filament preheating time length can preheat the time started to the one of the unwrapping wire time started from described The individual time difference.Preheating time determining unit 423 can determine the unwrapping wire time started according to a unwrapping wire plan.

Preheating plan generation unit 425 can generate filament pre-heating plan.In certain embodiments, preheating plan generation is single Unit 425 can be raw according to a tube voltage value, tube current value, a filament preheating time length and a heating model Into the filament pre-heating plan.In certain embodiments, preheating plan generation unit 425 can be according to tube voltage value, one Individual tube current value, filament preheating time length, a filament temperature and a heating model, generate the filament pre-heating meter Draw.In certain embodiments, preheating plan generation unit 425 can be according to a first unwrapping wire tube current value and the second unwrapping wire pipe The difference of current value, a heating model, generate the filament pre-heating plan.In certain embodiments, preheating plan generation is single Unit 425 can decide whether to change the filament pre-heating plan with according to whether receiving an X-ray loading schedule instruction.

Input/output module 430 can receive other one or more module or components for coming from imaging system 100 The information of (for example, correction module 410, warm-up block 420, memory module 440 and database 150 etc.), and to imaging system 100 Other one or more module or components send information.The form of described information can include text, audio, video, picture The combination of one or more in.In certain embodiments, input/output module 430 can include keyboard, a mouse One or more in mark, display etc..

Memory module 440 can be with data storage.The data of the storage can be that imaging control apparatus 120 are generated or obtained Data, data that one or more modules of such as filament pre-heating current data, imaging control apparatus 120 are produced when running, Data being input into from database 150 by input/output module 430 etc..In certain embodiments, memory module 440 can be by It is incorporated in correction module 410 and/or warm-up block 420 or in the database 150 of Fig. 1.

It should be noted that description of the above for imaging control apparatus 120, only for convenience of description, can not be this Shen Please be limited within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, understanding the original of the system After reason, imaging control apparatus 120 can be carried out with the various amendments and change in formal and/or various details, but these Amendment and change still within the scope of disclosed herein.For example, imaging control apparatus 120 can include some other groups Part, such as one communication interface, power supply etc..For example, memory module 440 can be omitted from imaging control apparatus 120 and/ Or be incorporated in the database 150 of Fig. 1.For example, correction data memory cell 413 can be incorporated in memory module 440.

Fig. 5 show a flow for X-ray tube heater current control program 500 according to some embodiments of the present application Figure.In certain embodiments, one or more operations in program 500 can be realized by imaging control apparatus 120.

In 510, program 500 can perform correct operation according to correction point data.The correct operation can be by correcting Module 410 is performed.The correct operation can be based on check point data genaration heater current correction data.The correction points According to the data on one or more check points can be included.The correction point data can include focus size, one Tube voltage value, a filament current value and tube current value etc..In certain embodiments, the correction point data can be such as table (more details on table 1 may be referred to the description of Fig. 4) shown in 1.The technology used in the correct operation can be included repeatedly For computing, curve fitting technique, interpolation arithmetic technology etc..

In 520, program 500 can generate the first filament pre-heating plan according to the first unwrapping wire plan.First filament The operation of preheating plan generation can be performed by warm-up block 420.First unwrapping wire plan can include first unwrapping wire Tube voltage value, the tube current value of first unwrapping wire, the unwrapping wire time started of first unwrapping wire, first unwrapping wire put Line end time etc..First unwrapping wire plan can be obtained from input/output module 430, memory module 440 etc..Described One filament pre-heating plan can include one or more filament pre-heating current values, and electric with one or more of filament pre-heatings The information such as the corresponding temporal information of flow valuve.

In 530, program 500 can be instructed according to X-ray loading schedule, update the first filament pre-heating plan.Institute The operation for stating the first filament pre-heating schedule regeneration can be performed by warm-up block 420.The operation of the renewal can include modification First filament pre-heating one or more parameters in the works, for example, extension preheating time.The renewal can be included in institute State and increased preheating time and the corresponding pre- thermocurrent of determination are determined after the first filament pre-heating plan terminates.In some embodiments In, renewal the first filament pre-heating plan may include to perform the operation involved by the associated description of one or more Figure 10.

In certain embodiments, imaging control apparatus 120 can decide whether that receiving the X-ray loading schedule refers to Order.When the X-ray loading schedule instruction is received, imaging system 100 can perform the X-ray loading schedule instruction. When the X-ray loading schedule instruction is not received by, imaging system 100 can be carried out to first filament pre-heating plan Modification.

In 540, program 500 can obtain the second unwrapping wire plan.Second unwrapping wire plan can include one second The tube voltage value of unwrapping wire, the tube current value of second unwrapping wire, unwrapping wire time started, second unwrapping wire of second unwrapping wire Unwrapping wire end time etc..

In 550, program 500 can generate the second lamp according to first unwrapping wire plan and the second unwrapping wire plan Silk preheating plan.The operation of the second filament pre-heating plan generation can be performed by warm-up block 420.Second filament is pre- Heat plan includes one or more filament pre-heating electric currents, and time corresponding with one or more of filament pre-heating electric currents letter The information such as breath.In certain embodiments, according to first unwrapping wire plan and the second filament pre-heating plan, it may be determined that one Individual filament temperature.According to the filament temperature and the second unwrapping wire plan, the second filament pre-heating plan can be generated.Example Such as, generating second filament pre-heating plan can include performing the operation involved by the associated description of one or more Figure 11. In certain embodiments, according to second unwrapping wire tube current value and the difference of the tube current value of first unwrapping wire, can be with Generate the second filament pre-heating plan.For example, generate second filament pre-heating plan can include performing one or more Operation involved by the associated description of Figure 12.

In 560, program 500 can be instructed according to X-ray loading schedule, update the second filament pre-heating plan.Institute The operation for stating the second filament pre-heating schedule regeneration can be performed by warm-up block 420.The renewal of the second filament pre-heating plan Can use and the method described in step 530.

In certain embodiments, whether step 530 and/or step 560 can be performed and receive the instruction of X-ray loading schedule Judge.If receiving the instruction of X-ray loading schedule, imaging system 100 can perform payoff operation.During payoff operation, In order that the tube current value during unwrapping wire can be maintained near a target tube current value, can be to the reality during unwrapping wire Border tube current value is monitored.The monitoring can be the difference for obtaining an actual tube current value and target tube current value.Root According to the difference, by a filament current control circuit, a heater current during the unwrapping wire can be adjusted.Pass through The heater current is adjusted, can be by difference control in a threshold range, by the tube current value during unwrapping wire Maintain near the target tube current value.

It should be noted that description of the above for X-ray tube heater current control program 500, only for convenience of description, and The application can not be limited within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, understanding After the principle of the system, various amendments and the change in form and details can be carried out to the concrete mode of program 500 and step, But these amendments and change are still within claims hereof protection domain.In certain embodiments, in program 500 Some steps can be omitted, for example, step 510 and step 530 can be omitted.

Fig. 6 show a flow chart for X-ray tube filament correction program 600 according to some embodiments of the present application. One or more operation in program 600 can be realized by imaging control apparatus 120.

In 602, program 600 can determine to correspond to the first heater current correction data of the first tube voltage value.It is described The operation that first heater current correction data determines can be performed by correction module 410.The first heater current correction data The heater current correction data corresponding to one or more check points can be included.The check point can be acquiescence point, interpolation Point.The first heater current correction data can include the first tube voltage value, tube current value, a heater current Value, focus size etc..The tube current value can include tube current value, second check point of the first check point Tube current value.First check point can include tube current value be located at an acquiescence current range (for example, 30mA~ A check point in 300mA).Second check point can be a school outside tube current value is located at the default scoping On schedule.The check point can including tube current value, filament current value, tube voltage value, focus size etc. information.In some implementations In example, the first heater current correction data can correspond to the 4th heater current data, the 5th heater current included in Fig. 7 Correction data and the 6th heater current correction data.

604, program 600 can determine to correspond to the second heater current correction data of the second tube voltage value.Described The operation that two heater current correction datas determine can be performed by correction module 410.The numerical value of the second tube voltage value can be with It is not equal to the numerical value of the first tube voltage value described in step 602.The determination of the second heater current correction data, can use Method described in step 602.

In 606, program 600 can be based on the first filament correction data and the second heater current correction number According to it is determined that corresponding to the triple-filament current correction data of the 3rd tube voltage value.The triple-filament current correction data determine Operation can be performed by correction module 410.The determination of the triple-filament current correction data can be calculated based on an interpolation Method (for example, linear interpolation algorithm) is carried out.For example, according to 70kV tube voltages and the corresponding heater current correction of 100kV tube voltages Data, using linear interpolation algorithm, it may be determined that the corresponding heater current correction data of 80kV tube voltages.

It should be noted that above with respect to the description of X-ray tube filament correction program 600, only for convenience of description, can not The application is limited within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, understanding this Shen After general principle please, change can be made to X-ray tube filament correction program 600 in the case of without departing substantially from this principle, To various amendments and change in the application field form and details of implementing above-mentioned control flow.For example, can be suitable with set-up procedure Sequence, or increase some steps, or reduce some steps.For example, one is may be inserted between step 604 and 606 determines the 4th The step of tube voltage corresponding 7th heater current correction data.Step 606 can based on the first heater current correction data, Second heater current correction data, the 7th heater current correction data determine the corresponding triple-filament electric current school of the 3rd tube voltage value Correction data.

Fig. 7 show a kind of flow chart of the X-ray tube filament correction program 700 according to some embodiments of the present application. One or more operation in program 700 can be realized by imaging control apparatus 120.Specifically, in certain embodiments, program One or more operation in 700 can be performed by correction module 410.In certain embodiments, in Fig. 6 step 602 and/or Step 604 can be realized by performing the operation in one or more programs 700.

In 701, program 700 can determine corresponding one or more first check points of tube voltage value.Described The tube current value of one check point can be located at a first interval.The first interval can be an acquiescence model for tube current value Enclose.The default scoping can be the data area that a user specifies, can imaging system be based on being calculated Data area.The default scoping can be a continuous current range (for example, 30mA~300mA), or one discrete Current value set (for example, set of 30mA, 60mA, 120mA, 200mA, 300mA).In certain embodiments, the first school It can be on schedule the acquiescence point in table 1.

At 702, program 700 can be corrected to first check point, determine the 4th heater current correction data. In certain embodiments, method that can be according to Fig. 8 is corrected to acquiescence point, generates the 4th heater current correction number According to.For example, in the case of method that can be according to Fig. 8 is to the focus size 1 and tube voltage 70kV in table 1, tube current value is The check point of 30mA, 60mA, 120mA, 200mA and 300mA is corrected, and generates the 4th heater current correction data.

In 704, program 700 can determine tube current and heater current according to the 4th heater current correction data Corresponding relation.The technology that the determination of the corresponding relation can be fitted by data determines.The Technology of Data Fitting can be with Including linear fit technology, curve fitting technique etc..Specifically, the curve fitting technique can include least square method.

Specifically, in certain embodiments, the determination operation of the corresponding relation can be held by data fitting unit 411 OK.According to the 4th heater current correction data, program 700 can determine heater current and tube current by curve matching Between relation.

706, program 700 can determine the tube voltage value correspondence according to tube current and the corresponding relation of heater current A check point of multiple second.Second check point can correspond to a tube current value, filament current value, a pipe electricity Pressure value, focus size etc..

The tube current value of second check point may be located at outside the first interval.For example, the first interval can To be 30mA~300mA, then the tube current value of second check point can be 20mA.Pipe electricity according to second check point Flow valuve size, second check point can be interpolation point and/or end points.The interpolation point can be that tube current value is located at first The check point of one or more second intervals outside interval.For example shown in table 1, the first interval can be 30mA~ 300mA, corresponding second interval can be 8mA~25mA or 400mA~600mA, then interpolation point can be that tube current value is The check point of 10mA, 400mA, 500mA and 600mA.The end points can be corresponding one or more corrections of tube voltage In point, the check point of tube current value maximum and/or minimum.For example shown in table 1, focus size 1 is corresponding with the tube voltage of 70kV Tube current value is 6mA, 10mA, 400mA, 500mA and 600mA, then end points can be the correction that tube current value is 6mA and 600mA Point.

Specifically, the determination operation of second check point can be held by data fitting unit 411 in certain embodiments OK.Based on the data fitting result (for example, fitting function of the relation between heater current and tube current), it may be determined that one The corresponding filament current value of tube current value under individual specific tube magnitude of voltage and focus size.According to the tube current value and the lamp Silk current value, it may be determined that second check point.

In 708, program 700 may determine that whether the corresponding tube current value of second check point meets a default bar Part.It is described it is pre-conditioned can be tube current value less than or equal to a second tube current threshold value or more than or equal to the 3rd pipe Current threshold.The second tube current threshold value can be a minimum value for tube current.The 3rd tube current threshold value can be One maximum of tube current.More than the maximum, electric current there may be over-current phenomenon avoidance.The second tube current threshold value and institute State the 3rd tube current threshold value can be a default setting of imaging system 100, empirical value, by user (for example, a doctor It is raw) a tube current value of setting etc..When the corresponding tube current value of the second check point meets described pre-conditioned, program 700 Executable step 712.When the corresponding tube current value of the second check point is unsatisfactory for described pre-conditioned, the executable step of program 700 Rapid 714.

In 712, program 700 can determine second school according to the tube current and the corresponding relation of heater current The 5th heater current correction data on schedule.Second check point can be end points.The end points can be less than including satisfaction Equal to a second tube current threshold value or more than or equal to a check point for the 3rd tube current threshold condition.Determine the 5th lamp Silk current correction data can be the corresponding relation based on the tube current and heater current, the tube current and filament being calculated Current value.In certain embodiments, to avoid over-current phenomenon avoidance, fitting result can be directly defined as the 5th lamp of the end points Silk current correction data.For example, corresponding to focus size 1 and the situation of tube voltage value 70kV, second check point can be Tube current value in table 1 is the check point of 6mA and 610mA.Tube current value is the corresponding fitting number of check point of 6mA and 610mA According to, can as carried out by the 5th heater current correction data.

In 714, program 700 can be corrected to second check point, determine the 6th of second check point Heater current correction data.Second check point can be interpolation point.The interpolation point can be unsatisfactory for bar in step 710 The check point of part.In certain embodiments, step 714 can carry out school using the method shown in Fig. 8 to the interpolation point Just, the 6th heater current correction data is determined.For example, method that can be according to Fig. 8 is to the focus size 1 in table 1 and pipe In the case of voltage 70kV, tube current value is corrected for the check point of 10mA, 400mA, 500mA and 600mA, generates the 6th filament Current correction data.

In certain embodiments, the content between step 708-714 can circulate execution, until completing to be corrected to all second The judgement of point.Based on the 5th heater current determined in the 4th heater current correction data, the step 712 determined in step 702 The 6th heater current correction data determined in correction data and step 714, can generate the corresponding multiple schools of tube voltage The heater current correction data of (for example, the first check point, second check point etc.) on schedule.

Fig. 8 show the heater current correction data generation program of a check point according to some embodiments of the present application 800 flow chart.One or more operations of program 800 can be realized by imaging control apparatus 120.Specifically, in some realities Apply in example, one or more operations of program 800 can be realized by correction module 410.In certain embodiments, the step in Fig. 7 Rapid 702 and step 714 can be realized by performing the operation in one or more programs 800.

In 802, program 800 can obtain check point default tube current value and a filament current value. By input/output module 430, memory module 440 etc., can obtain one check point described default tube current value and The filament current value.

The check point can be a known check point.For example, it may be a Default Value parameter for filament.Institute It can be a check point being calculated to state check point.For example, the check point obtained by Technology of Data Fitting.The correction Point can be check point of the tube current value in any scope.For example, the check point can be one first correction in Fig. 7 Point and/or the second check point.

In 804, program 800 can set iterations for an initial value.The initial value can be 0 or be more than Integer equal to 0.The iterations can represent that default tube current value is updated to the number of times of actual tube current value.

In 806, whether program 800 may determine that the iterations more than an iterations threshold value.The iteration Frequency threshold value can be value for the numerical value that imaging system 100 is calculated, or user's setting etc..When described When iterations is more than the iterations threshold value, program 800 can perform the operation of step 808.When the iterations not During more than the iterations threshold value, program 800 can perform the operation of step 810.

In 808, program 800 can report mistake.The report form of the mistake can be word, voice, image etc. Form.The mistake can be sent to terminal 130, or be shown on display device 140.

In 810, program 800 can perform a unwrapping wire according to the default tube current value and the filament current value Operation.The payoff operation can be performed by imaging device 110.In certain embodiments, can include during payoff operation Formulate filament pre-heating plan.

In 812, program 800 can determine an actual tube current value during unwrapping wire.The actual tube current value It can be the tube current value of a special time (for example, time point, time period etc.), or based on unwrapping wire mistake Numerical value (for example, average value of multiple time tube current values) that the tube current value of multiple times is calculated in journey etc..It is described to put Line process can be a unwrapping wire, or multiple unwrapping wire.For example, during a unwrapping wire, the tube current value of T1 times It is the first numerical value (for example, mA1), the tube current value of T2 times is second value (for example, mA2), and the tube current value of T3 times is Third value (for example, mA3).In certain embodiments, the actual tube current value can be the first numerical value (mA1), the second number Value (mA2) and/or third value (mA3).In certain embodiments, the actual tube current value can also be the first numerical value (mA1), second value (mA2), the average value of third value (mA3).

In 814, program 800 may determine that whether the actual tube current value is full with the difference of the default tube current value One, foot is pre-conditioned.It is described pre-conditioned to may include the default tube current value more than a first threshold and the less than one Two threshold values.If the default tube current value meets the condition, program 800 can perform step 820.If the default pipe Current value is unsatisfactory for the condition, and program 800 can perform step 816.The first threshold and the Second Threshold can be The numerical value being calculated of imaging system 100, or a numerical value being set by the user.The first threshold and described Second Threshold can be any number.The absolute value of the first threshold and the Second Threshold can be with equal or unequal. For example, the first threshold can be -1mA, the Second Threshold can be 1mA.Again for example, the first threshold can be- 1mA, the Second Threshold can be 2mA.

In 820, program 800 can generate the heater current correction data of the check point.The filament of the check point Current correction data can include the filament current value after correction, the tube current value after correction and the corresponding pipe of the check point Magnitude of voltage and focus size etc..

In 816, the default tube current value can be updated to the actual tube current value by program 800.

In 818, program 800 can update the iterations.For example, program 800 can be according to an increment come more The new iterations.The increment can be 1 or any other value.For example, the iterations can be updated to N+1 by N, N can be any number.After updating the iterations, program 800 can perform step 806.When the iterations does not surpass When crossing an iterations threshold value, program 800 can be with the operation of repeat step 806-818.

It should be noted that above with respect to one description of the heater current correction data of check point of generation, only describing It is convenient, the application can not be limited within the scope of illustrated embodiment.It is appreciated that coming for those skilled in the art Say, after the general principle for understanding the application, can be in the case of without departing substantially from this principle, to one lamp of check point of generation The method of silk current correction data is made a change, and various in the application field form and details of implementing above-mentioned control flow are repaiied Just and change.For example, with set-up procedure order, or some steps can be increased, or reduce some steps.Again for example, step 814 can To calculate the ratio of the actual tube current value and default tube current value.Determined whether default tube current value based on the ratio It is updated to actual tube current value.

Fig. 9 show a flow for X-ray tube preheating plan generation program 900 according to some embodiments of the present application Figure.One or more operation in program 900 can be realized by imaging control apparatus 120.Specifically, in certain embodiments, One or more operation in program 900 can be performed by warm-up block 420.In certain embodiments, the step 520 in Fig. 5 Can be realized by performing the operation in one or more programs 900.

In 910, program 900 can determine that a tube voltage value, a tube current value and one are put according to unwrapping wire plan The line time started.The unwrapping wire plan can be obtained from input/output module 430, memory module 440 or database 150 Take.The unwrapping wire plan can include the tube voltage value, the tube current value and the unwrapping wire time started.

In 920, program 900 can determine a preheating time started.The determination of the preheating time started, Ke Yiyou Preheating time determining unit 423 is performed.It is described preheating the time started can be high pressure generator 320 can start perform filament it is pre- The time of heat operation.The preheating time started can be the time for obtaining the unwrapping wire plan.For example, obtaining unwrapping wire plan Time is 10:00PM, the preheating time started can be 10:00PM.The preheating time started can be the current of system Time.The preheating time started can also be the time unrelated with the current time in system.

In 930, program 900 can determine a lamp according to the unwrapping wire time started and the preheating time started Silk preheating time length.The determination of the filament preheating time length can be performed by preheating time determining unit 423.The lamp Silk preheating time length can be a time difference from preheating time started to the unwrapping wire time started.For example, institute State preheating the time started be 09:40PM, the unwrapping wire time started is 09:45PM, then the filament preheating time length is 5 points Clock.

In 940, program 900 can set up a heating model.The heating model can include tube voltage value, One tube current value, the corresponding relation between a filament preheating time length and a filament pre-heating electric current.The filament is pre- Thermocurrent can correspond to a heater current during filament pre-heating.The heating model can be a tables of data, One function of many variables and a figure (for example, straight line).

In certain embodiments, the heating model can be a look-up table.The look-up table can include specific tube Tube current value under voltage, the corresponding relation between filament preheating time length and filament pre-heating electric current.The look-up table can be with Including a tube current value, the first standard preheating time length, the second standard preheating time length, first lamp The pre- thermocurrent of silk, a second filament pre-heating electric current and a pre- thermocurrent of triple-filament.The second standard preheating time is long Degree can be more than the first standard preheating time length.The first standard preheating time length and second standard are preheated Time span can be a default value of imaging system 100.When the filament preheating time length is less than first standard During preheating time length, can determine that the first filament pre-heating current value is preheating lamp in the works according to the tube current value The pre- thermocurrent of silk.When the filament preheating time length is more than or equal to the first standard preheating time length and less than the second mark During quasi- preheating time length, can determine that the second filament pre-heating current value is to preheat in the works according to the tube current value Filament pre-heating electric current.When the filament preheating time length is more than or equal to the second standard preheating time length, according to institute Stating tube current value can determine that the triple-filament preheating current value is preheating filament pre-heating electric current in the works.

For example, it is the corresponding look-up tables of 80kV that the content shown in table 2 is tube voltage value.Specifically, shown in table 2 be pipe Under voltage 80kV, the corresponding relation between tube current, filament preheating time length and filament pre-heating electric current.Wherein, t1 is one First standard preheating time length, t2 is a second standard preheating time more than the first standard preheating time length long Degree.T1 and t2 can be a default value of the setting of imaging system 100.As shown in table 2, so that tube current value is as 10mA as an example, when When filament preheating time length is less than t1, filament pre-heating electric current is 3.3732A (the first filament pre-heating current value)；Work as filament pre-heating When time span is less than t2 more than or equal to t1, filament pre-heating electric current is 3.3232A (the second filament pre-heating current value)；Work as filament When preheating time length is more than or equal to t2, filament pre-heating electric current is 3.2589A (triple-filament preheats current value).For one really Fixed tube voltage value and tube current value, filament pre-heating current value declines with the increase of preheating time length.

The tube voltage value of table 2 is the preheating plan look-up table of 80kV

In 950, program 900 can be according to the tube voltage value, the tube current value, the filament preheating time length With the heating model, a filament pre-heating plan is generated.The operation of the filament pre-heating plan generation can be planned by preheating Generation unit 425 is performed.The filament pre-heating plan can include a filament pre-heating current value and the filament pre-heating electric current It is worth the information such as corresponding temporal information.The temporal information can include one or more time point (such as initial time, terminations Time, a specific moment (such as 9PM)), the information of time period (for example, 3 seconds, 1-2 seconds, etc.) etc. and time correlation.Example Such as, the filament pre-heating plan can be preheated with the filament pre-heating current value of 10mA, and the time span of preheating is 3 seconds. Again for example, the filament pre-heating plan can be preheated with the filament pre-heating current value of 10mA and 5mA, specially the 1st ~2 seconds filament pre-heating current values with 10mA are preheated, and are preheated in the 2nd~3 second filament pre-heating current value with 5mA.

In certain embodiments, as shown in table 2, when the filament preheating time length is less than t1, the filament pre-heating Electric current is the first filament pre-heating current value；When the filament preheating time length is less than t2 more than or equal to t1, the filament Pre- thermocurrent is the second filament pre-heating current value；When the filament preheating time length is more than t2, the filament pre-heating electric current For triple-filament preheats current value.

In certain embodiments, the filament preheating time length can phase with an actual lamp filaments heat time length Together.In certain embodiments, according to the difference of the filament preheating time length, the actual lamp filaments heat time can be set Length is a definite value or a changing value.For example, as shown in table 2, it is described when the filament preheating time length is less than t1 Filament pre-heating electric current is the first filament pre-heating current value, when the actual lamp filaments heat time length can be the filament pre-heating Between length；When the filament preheating time length is less than t2 more than or equal to t1, the filament pre-heating electric current is the second filament Preheating current value, the actual lamp filaments heat time length can be t1；When the filament preheating time length is more than t2, institute Filament pre-heating electric current is stated for triple-filament preheats current value, the actual lamp filaments heat time length can be t2.

It should be noted that the description of the method for being generated for X-ray tube preheating plan above, only for convenience of description, and The application can not be limited within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, understanding After the principle of the system, form and carefully can be carried out to concrete mode and the step of the program 900 of X-ray tube preheating plan generation Various amendments and change on section, but these amendments and change are still within claims hereof protection domain.For example, The section quantity of filament preheating time length and filament pre-heating electric current can be as shown in table 23, or 4 in table 2 It is individual, 5 etc..

Figure 10 show a stream for X-ray tube preheating plan generation program 1000 according to some embodiments of the present application Cheng Tu.One or more operation in program 1000 can be realized by imaging control apparatus 120.In certain embodiments, in Fig. 5 The step of 530 can be realized by performing the operation in one or more programs 1000.

In 1010, program 1000 can scan an X-ray loading schedule instruction.The X-ray loading schedule instruction The operation of scanning can be performed by primary processor 1212.Based on X-ray loading schedule instruction, imaging system 100 can be held Row payoff operation.

In 1020, program 1000 can decide whether to receive the X-ray loading schedule instruction.It is described whether to receive Judgement operation to X-ray loading schedule instruction can be performed by primary processor 1212.If receiving X-ray loading meter Instruction is drawn, program 1000 can perform step 1050.If being not received by the instruction of X-ray loading schedule, program can be performed Step 1030.

In 1050, program 1000 can perform an X-ray loading schedule instruction.The execution X-ray loading schedule The implementation procedure of instruction can carry out payoff operation according to a unwrapping wire plan.

In 1030, program 1000 can determine a time span beyond preheating time.It is described beyond preheating time Time span determine operation can be performed by warm-up block 420.

In 1040, program 1000 can update filament pre-heating plan according to the time span beyond preheating time. The operation of the filament pre-heating schedule regeneration can be performed by warm-up block 420.The operation of the filament pre-heating schedule regeneration can With including determining one or more filament pre-heating electric currents and temporal information corresponding with one or more of filament pre-heating electric currents Etc. information.The renewal of the filament pre-heating plan can be carried out based on a heating model.The heating model can be included The correspondence of one preheating time, a time span beyond preheating time, a tube current and filament pre-heating electric current etc. Relation.

In certain embodiments, after circuit carries out preheating according to initial preheating plan to be terminated, primary processor may be still The instruction of X-ray loading schedule is not received, unwrapping wire does not start yet.To ensure that filament temperature does not exceed mesh because the heat time is long Scale value, can control filament pre-heating, to obtain good tube current by the way of time segment changes filament pre-heating current value Performance.

In certain embodiments, filament pre-heating plan can be updated by functional operation.For example, according to the preheating time With the time span beyond preheating time, the filament in the time span of preheating time can be calculated pre- The information such as thermocurrent and corresponding temporal information.

Described in the heating model beyond preheating time time span can be first timeout lengths (for example, Δ t1) and second timeout lengths (for example, Δ t2).The heating model can include one with first timeout lengths The overtime filament pre-heating electric current of corresponding one first and one second time-out corresponding with second timeout lengths Filament pre-heating electric current.When the instruction of X-ray loading schedule is not received by after preheating time terminates, can the first be surpassed according to described When filament pre-heating electric current preheated in the range of first timeout lengths.If do not had after second timeout lengths terminate The instruction of X-ray loading schedule is received, can be according to the described second overtime filament pre-heating electric current in second timeout lengths In the range of preheated.By that analogy, refer to if being not received by X-ray loading schedule after a N timeout lengths terminate Order, can be preheated according to a N time-out filament pre-heating electric current in the range of the N timeout lengths.In some implementations In example, if being not received by the instruction of X-ray loading schedule after second timeout lengths terminate, can be by the preheating of filament Electric current remains the second overtime filament pre-heating electric current.

In certain embodiments, filament pre-heating plan can be updated by look-up table 3.For example, shown in table 3 be pipe electricity Under pressure 80kV, the corresponding relation between tube current, preheating time, the time span beyond preheating time and filament pre-heating electric current. Wherein, t1 is a preheating time, and corresponding filament pre-heating current value is the 4th filament pre-heating current value.When preheating time t1 knots Shu Hou, is not received by X-ray loading schedule instruction, it may be determined that one beyond preheating time time span Δ t1 and Corresponding first overtime filament pre-heating current value.After t1 and Δ t1 terminate, it is not received by the X-ray loading schedule and refers to Order, it may be determined that a time span Δ t2 and corresponding second overtime filament pre-heating current value beyond preheating time, with this Analogize.For convenience of description, the filament pre-heating electric current after Δ t2 can remain the second overtime filament pre-heating current value.In table 3, The n of Δ tn is the integer more than 2.

The tube voltage value of table 3 is the preheating schedule regeneration look-up table of 80kV

It should be noted that the description of the method for being generated for X-ray tube preheating plan above, only for convenience of description, and The application can not be limited within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, understanding After the principle of the system, the various amendments in form and details can be carried out to the concrete mode of program 1000 and step and is changed Become, but these amendments and change are still within claims hereof protection domain.For example, in table 3, the lamp after Δ t2 The pre- thermocurrent of silk can be change.

Figure 11 show the flow that program 1100 is generated according to a filament pre-heating plan of some embodiments of the present application Figure.One or more operation in program 1100 can be realized by imaging control apparatus 120.In certain embodiments, in Fig. 5 Step 550 can be realized by performing the operation of one or more programs 1100.

In 1110, program 1100 can according to a unwrapping wire plan, determine a tube voltage value, a tube current value and One unwrapping wire time started.The operation that the tube voltage value, the tube current value and the unwrapping wire time started determine can be by Warm-up block 420 is performed.The unwrapping wire plan can be from input/output module 430, memory module 440 or the institute of database 150 Obtain.The unwrapping wire plan can include the tube voltage value, the tube current value and the unwrapping wire time started.

In 1120, program 1100 can determine a preheating time started.The operation that the preheating time started determines Can be performed by warm-up block 420.The preheating time started can be that high pressure generator 320 starts to perform filament pre-heating operation Time.

In 1130, program 1100 can determine one according to the unwrapping wire time started and the preheating time started Filament preheating time length.The operation that the filament preheating time length determines can be performed by warm-up block 420.The filament Preheating time length can be a time interval from preheating time started to the unwrapping wire time started.For example, institute State preheating the time started be 09:40PM, the unwrapping wire time started is 09:45PM, then the filament preheating time length can be with It is 5 minutes.

In 1140, program 1100 can set up a heating model.The operation that the heating model determines can be by pre- Thermal modules 420 are performed.The heating model can include tube voltage, tube current, filament preheating time length, The corresponding relation of one filament temperature, filament pre-heating electric current etc..It is pre- that the filament pre-heating electric current can correspond to filament A heater current in the hot stage.The heating model can be presented in the form of tables of data or function.According to the data Table, program 1100 can determine to correspond to the tube voltage, tube current, filament preheating time length, a lamp of filament temperature The pre- thermocurrent of silk.According to the function, program 1100 can determine to correspond to the tube voltage, tube current, filament preheating time One filament pre-heating electric current of length, filament temperature.

In 1150, program 1100 can determine a filament temperature.The operation that the filament temperature determines can be by pre- Thermal modules 420 are performed.The filament temperature can be the initial value of filament temperature when program 1100 starts.The filament temperature Initial value can be due to there is filament temperature caused by a preceding unwrapping wire.The filament temperature can be from the one of imaging system Obtained in individual component or equipment (for example, a thermometer).The filament temperature can also be true by calculating by imaging system 100 It is fixed.In certain embodiments, program 1100 can determine an equivalent description value for filament temperature.The equivalent description value can be with The thermionic emission ability of filament is described.The equivalent description value of the filament temperature can describe to be led due to there is a preceding unwrapping wire The filament temperature situation of cause.

According to the situation of a preceding unwrapping wire, program 1100 can determine the initial value or the filament temperature of the filament temperature The equivalent description value of degree.According to the situation of a preceding unwrapping wire, it may be determined that tube voltage for unwrapping wire before, before An end time for unwrapping wire before the tube current value of unwrapping wire and one.End time and institute according to a preceding unwrapping wire State the unwrapping wire time started, it may be determined that a time interval.The time interval can be the end from a preceding unwrapping wire One time difference of time to the unwrapping wire time started.Tube voltage, a preceding unwrapping wire according to a preceding unwrapping wire Tube current value and the time interval, it may be determined that the equivalent description of the initial value of the filament temperature or the filament temperature Value.

In certain embodiments, program 1110 can be based on filament temperature model determine filament temperature initial value or The equivalent description value of filament temperature.The filament temperature model can represent unwrapping wire time interval, a tube current twice With the corresponding relation of filament temperature.The filament temperature model can exist in the form of filament radiating table.The filament radiating Table can include the tube voltage of a preceding unwrapping wire, the tube current of a preceding unwrapping wire, one twice unwrapping wire time interval, The corresponding relation of one or more time intervals and one or more filament temperatures.One or more of time intervals can be wrapped Include very first time interval (for example, 0~t1), second time interval (for example, t1~t2), the 3rd time interval (for example, t2~t3) and the 4th time interval (for example,>t3).It is described to dissipate for different tube current values and time interval A corresponding filament temperature can be stored in hotlist.The very first time is interval, second time interval, the described 3rd when Between interval and described 4th time interval can be by critical point be first time point (for example, t1 time points), the second time point The time interval that (for example, t2 time points) and the 3rd time point (for example, t3 time points) divide.The first time point, second Time point and the 3rd time point can be calculated by imaging system and obtain or determined (for example, user is based on empirically determined by user One numerical value).Tube current according to the time interval of unwrapping wire twice and a preceding unwrapping wire searches the filament radiating table, The filament temperature can be determined.

For example, from heating model 1213, a different time interval as shown in table 4 can be obtained corresponding with tube current Filament radiating table.Shown in table 4 for tube voltage 80kV under, the corresponding relation between tube current, time interval and filament temperature.Such as Shown in table 4, for the tube voltage value and tube current value that determine, when time interval falls into different time intervals (for example, 0~t1 (correspond to tc1 in table 5), t1~t2 (corresponding to the tc2 in table 5), t2~t3 (corresponding to the tc3 in table 5),>T3 etc.) When, corresponding filament temperature (for example, T3 DEG C, T2 DEG C, T1 DEG C, 0 DEG C etc.) can be obtained.For example, when tube current value is 50mA, If time interval falls into t1~t2 time intervals, corresponding filament temperature is 0 DEG C.Again for example, when tube current value is 200mA When, if time interval falls into t1~t2 time intervals, corresponding filament temperature is T1 DEG C.

The different time of table 4 is spaced the filament radiating table with tube current

In 1160, program 1100 can be long according to the tube voltage value, the tube current value, the filament preheating time Degree, the filament temperature and the heating model, generate a filament pre-heating plan.The operation of the filament pre-heating plan generation Can be performed by warm-up block 420.The filament pre-heating plan can include the filament pre-heating electric current and the filament pre-heating The information such as the corresponding temporal information of electric current.

In certain embodiments, the heating model can exist with data sheet form.The tables of data can include one Tube voltage, the first standard preheating time, the second standard preheating time, tube current value, a filament pre-heating electricity Flow valuve and filament temperature etc..The second standard preheating time can be more than the first standard preheating time.The lamp Silk temperature can include the first filament temperature, second filament temperature and a triple-filament temperature.First lamp Silk temperature, the second filament temperature and triple-filament temperature can determine according to a filament temperature model.According to the filament temperature Degree, the tube voltage value, the tube current value, the filament preheating time length and the first standard preheating time, second The magnitude relationship and heating model of standard preheating time, program 1100 can determine a filament pre-heating electric current.

For example, heating model can exist in the form of a lookup table.When the look-up table can include a filament pre-heating Between length, tube voltage, the corresponding relation between a filament temperature and a tube current.The filament preheating time length A first standard preheating time length and a second standard preheating time length can be included.When second standard is preheated Between length can be more than the first standard preheating time length.The filament temperature can include first filament temperature, One the second filament temperature and a triple-filament temperature.In certain embodiments, the filament temperature can be in step 1150 Middle determination.First filament temperature can correspond to a first interval (for example, tc1 (corresponding to 0~t1 in table 4)), Second filament temperature can correspond to a second interval ((corresponding to the t1~t2 in table 4) for example, tc2)), described the Triple-filament temperature can correspond to a 3rd interval (for example, tc3 (corresponding to the t2~t3 in table 4)).According to the filament Temperature, the tube current value, the tube voltage value and the filament preheating time length, a lamp can be determined by look-up table Silk preheating temperature.

For example, shown in table 5 under tube voltage 80kV, tube current, filament preheating time length, filament temperature and filament are pre- Corresponding relation between thermocurrent.Wherein, t1 is a first standard preheating time length, and t2 is one more than the described first mark Second standard preheating time length of quasi- preheating time length, t1 and t2 can be one one of the setting of imaging system 100 and write from memory Recognize value.Tc1 be one the very first time interval.Tc2 is second time interval.Tc3 is the 3rd time interval.T1 is right Interval first filament temperature of the very first time described in Ying Yu.T2 corresponds to second lamp of second time interval Silk temperature.T3 is a triple-filament temperature for corresponding to the 3rd time interval.For a tube voltage for determination Value, tube current value, filament preheating time length and filament temperature, by look-up table 5, it may be determined that corresponding filament pre-heating electricity Stream.So that tube current value is as 10mA as an example, when the filament preheating time length is less than t1, and the filament temperature is T1 DEG C, lead to Cross table 5, it may be determined that the corresponding filament pre-heating electric current is 3.17664A in the filament preheating time length.

The look-up table of the filament preheating time length of table 5 and respective tube current value

It should be noted that the description of the method for being generated for filament pre-heating plan above, only for convenience of description, can not The application is limited within the scope of illustrated embodiment.It is appreciated that for a person skilled in the art, being this is understood After the principle of system, various amendments and the change in form and details can be carried out to the concrete mode of program 1100 and step, but It is that these are corrected and change still within claims hereof protection domain.For example, program 1100 can first carry out step The operation that filament temperature described in 1150 determines, performs the operation that heating model described in step 1140 determines afterwards.

Figure 12 show the flow that program 1200 is generated according to a filament pre-heating plan of some embodiments of the present application Figure.One or more operation in program 1200 can be realized by imaging control apparatus 120.In certain embodiments, in Fig. 5 Step 550 can be realized by performing the operation in one or more programs 1200.

In 1210, program 1200 can determine the time of a first unwrapping wire end time and the second unwrapping wire time started Interval.The operation that the time interval determines can be performed by warm-up block 420.According to a first unwrapping wire plan and one Two unwrapping wire plans, it may be determined that the first unwrapping wire end time and the second unwrapping wire time started.The first unwrapping wire meter Drawing can include the first unwrapping wire tube current value, the first unwrapping wire tube voltage value, the first unwrapping wire time started, described first Unwrapping wire end time etc..Second unwrapping wire plan can include second unwrapping wire tube current value, the second unwrapping wire tube voltage value, The second unwrapping wire time started, second unwrapping wire end time etc..The time interval can be that second unwrapping wire is opened A time difference between time beginning and the first unwrapping wire end time.For example, the second unwrapping wire time started is 10: 30PM, the first unwrapping wire end time is 10:00PM, then the time interval is 30 minutes.

In 1220, program 1200 can determine the difference of the first unwrapping wire tube current value and the second unwrapping wire tube current value.Institute The operation for stating difference determination can be performed by warm-up block 420.In certain embodiments, the difference can described first be put Spool current value subtracts the current differential that the second unwrapping wire tube current value is obtained.The second unwrapping wire tube current value can be with More than, less than or equal to the first unwrapping wire tube current value.

In 1230, program 1200 can determine a preheating time length according to the difference and a heating model. The operation that the preheating time length determines can be performed by warm-up block 420.The heating model can include the difference, Correspondence between the second unwrapping wire tube voltage, the time interval, filament pre-heating electric current, the preheating time length etc. Relation.The preheating time length can be that tube current value is increased, reduces or be maintained from the first unwrapping wire tube current value One time span of the second unwrapping wire tube current value.The preheating time length can change into a filament temperature Second filament temperature time span.

In certain embodiments, the heating model can be a look-up table in heating model 1213.For example, described First unwrapping wire tube current value is 10mA, and the second unwrapping wire tube current value is 20mA, and the difference is 10mA.According to the lookup Table, it may be determined that corresponding preheating time length when difference is 10mA.

In certain embodiments, the heating model can be a function.According to the function, difference, described Time interval etc., by way of functional operation, it may be determined that the preheating time length.The filament pre-heating electric current can be Increase, reduce or be maintained one of the second tube current value from the first unwrapping wire tube current value corresponding to by tube current value Heater current.In certain embodiments, the first unwrapping wire tube current value is changed into the second unwrapping wire tube current value correspondence Heater current be properly termed as maintain electric current.

In 1240, whether program 1200 may determine that the time interval less than the preheating time length.When described When time interval is less than the preheating time length, program 1200 can perform 1250.When the time interval is not less than described During preheating time length, program 1200 can perform 1260.

In 1250, program 1200 can report mistake.The operation of the error reporting can be held by warm-up block 420 OK.The mistake can including the time interval, the preheating time length etc. information.The mistake can be sent to terminal 130, or shown on display device 140.For example, the first unwrapping wire tube current value is 10mA, the second unwrapping wire tube current It is 20mA to be worth, and the time interval is less than 1s, and the corresponding preheating time length that tube current value is increased to 20mA from 10mA More than 1s.Under conditions of the time interval less than 1s, it is impossible to which enough realize the value of the second unwrapping wire tube current is increased by 10mA To the situation of 20mA, therefore mistake can be reported.Again for example, the first unwrapping wire tube current value is 20mA, the second unwrapping wire pipe Current value is 10mA, the time interval be less than 1s, and it is corresponding by 20mA be reduced to 10mA preheating time length be more than 1s. Under conditions of the time interval less than 1s, it is impossible to enough realize that the value of the second unwrapping wire tube current is reduced to 10mA's by 20mA Situation, therefore mistake can be reported.

In 1260, program 1200 can determine a filament pre-heating plan according to the difference and the heating model. The filament pre-heating plan can be including a filament pre-heating electric current and the filament pre-heating electric current and corresponding temporal information etc. Information.

Basic conception is described above, it is clear that to those skilled in the art, foregoing invention is disclosed only As an example, and not constituting the restriction to the application.Although do not clearly state herein, those skilled in the art may Various modifications, improvement and amendment are carried out to the application.Such modification, improvement and amendment are proposed in this application, so such Change, improve, correct the spirit and scope for still falling within the application example embodiment.

Meanwhile, the application describes embodiments herein using particular words.Such as " one embodiment ", " one implements Example ", and/or " some embodiments " mean a certain feature related to the embodiment of the application at least one, structure or feature.Cause This, it should be highlighted that and it is noted that " embodiment " or " implementation that are referred to twice or repeatedly in diverse location in this specification Example " or " alternate embodiment " are not necessarily meant to refer to same embodiment.Additionally, in one or more embodiments of the application Some features, structure or feature can carry out appropriate combination.

Additionally, it will be understood by those skilled in the art that each side of the application can be by some with patentability Species or situation are illustrated and described, including any new and useful operation, machine, product or material combination, it is or right Their any new and useful improvement.Correspondingly, the various aspects of the application can completely by hardware perform, can be complete Performed by software (including firmware, resident software, microcode etc.), can also be performed by combination of hardware.Hardware above is soft Part is referred to alternatively as " data block ", " module ", " engine ", " unit ", " component " or " system ".Additionally, each side of the application The computer product being located in one or more computer-readable mediums may be shown as, the product includes computer-readable program Coding.

Computer-readable signal media may include a propagation data signal for being contained within computer program code, for example In base band or as a part for carrier wave.The transmitting signal may have many forms, including electromagnetic form, light form etc. Deng or suitable combining form.Computer-readable signal media can be any meter in addition to computer-readable recording medium Calculation machine computer-readable recording medium, the medium can by being connected to instruction execution system, device or an equipment realizing communicating, propagate or Transmit the program for using.Program coding in computer-readable signal media can be carried out by any suitable medium Propagate, including radio, cable, fiber optic cables, RF or similar mediums or any of above medium combination.

Computer program code needed for the operation of the application each several part can use any one or more programming language, Including Object-Oriented Programming Language such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C++, C#, VB.NET, Python etc., conventional procedural programming language for example C language, Visual Basic, Fortran 2003, Perl, COBOL 2002, PHP, ABAP, dynamic programming language such as Python, Ruby and Groovy, or other programming languages etc..The program coding can be with complete It is complete to run on the user computer or run on the user computer as independent software kit or part is in subscriber computer Run on remote computer or server in remote computer operation or completely upper operation part.In the latter cases, remotely Computer can be connected by any latticed form with subscriber computer, such as LAN (LAN) or wide area network (WAN), or even Outer computer (such as by internet) is connected to, or in cloud computing environment, or it is service to use software such as service (SaaS)。

Additionally, except clearly stating in non-claimed, the order of herein described processing element and sequence, digital alphabet Using or other titles use, be not intended to limit the order of the application flow and method.Although by each in above-mentioned disclosure Kind of example discusses some it is now recognized that useful inventive embodiments, but it is to be understood that, such details only plays explanation Purpose, appended claims are not limited in the embodiment for disclosing, conversely, claim is intended to, and covering is all to meet the application The amendment of embodiment spirit and scope and equivalent combinations.For example, although system component described above can be set by hardware It is standby to realize, but only can also be achieved by the solution of software, pacify such as on existing server or mobile device The described system of dress.

Similarly, it is noted that in order to simplify herein disclosed statement, so as to help real to one or more inventions Apply the understanding of example, above to the description of the embodiment of the present application in, sometimes by various features merger to one embodiment, accompanying drawing or In descriptions thereof.But, this disclosure method be not meant to the application object required for aspect ratio claim in carry And feature it is many.In fact, the feature of embodiment will be less than whole features of the single embodiment of above-mentioned disclosure.

Description composition, the numeral of number of attributes are used in some embodiments, it should be appreciated that such for embodiment The numeral of description, has used qualifier " about ", " approximate " or " generally " to modify in some instances.Unless said in addition Bright, " about ", " approximate " or " generally " shows that the numeral allows ± 20% change.Correspondingly, in some embodiments In, the numerical parameter used in description and claims is approximation, approximation feature according to needed for separate embodiment Can change.In certain embodiments, numerical parameter is considered as the significant digit of regulation and using the reservation of general digit Method.Although for confirming the Numerical Range and parameter of its scope range being approximation in the application some embodiments, specific real Apply in example, being set in for such numerical value is reported as precisely as possible in feasible region.

Each patent, patent application, patent application publication thing and the other materials quoted for the application, such as article, book , be incorporated herein entire contents as reference hereby by nationality, specification, publication, document, object etc..With teachings herein It is (current to the conditional file of the application claim widest scope except application history file that is inconsistent or producing conflict Or be additional in the application afterwards) also except.If it should be noted that description, definition in the application attaching material, And/or the use of term with it is herein described it is interior have place that is inconsistent or conflicting, with the description of the present application, definition and/or The use of term is defined.

Finally, it will be understood that embodiment described herein is only used to illustrate the principle of the embodiment of the present application.Other Deformation be likely to belong to scope of the present application.Unrestricted accordingly, as example, the alternative configuration of the embodiment of the present application is visual It is consistent with teachings of the present application.Correspondingly, embodiments herein is not limited only to the implementation that the application is clearly introduced and described Example.

Claims (10)

1. a kind of X-ray tube heater current data correcting method, including：

Obtain the corresponding first tube current value to be corrected of the first check point and filament current value to be corrected；

According to the described first tube current value to be corrected and the filament current value to be corrected, a payoff operation is performed；

Determine an actual tube current value in the payoff operation；

Determine the difference of the actual tube current value and the first tube current value to be corrected；And

First check point is corrected according to the difference.

2. the method described in claim 1, described to be included according to difference correction first check point：

Judge whether the difference meets pre-conditioned, and

When the difference meets it is described pre-conditioned when, generate the corresponding heater current correction number of first check point According to.

3. the method described in claim 2, wherein it is described pre-conditioned including judging the difference to judge whether the difference meets Whether value is more than a first threshold and less than a Second Threshold.

4. the method described in claim 2, wherein correct first check point according to the difference further including：

When the difference is unsatisfactory for described pre-conditioned, the described first tube current value to be corrected is updated to the actual pipe electricity Flow valuve, and according to renewal after the first tube current value to be corrected and the filament current value to be corrected generate first check point The corresponding heater current correction data.

5. the method described in claim 4, it is described according to renewal after the described first tube current value to be corrected and described to be corrected Filament current value generates the corresponding heater current correction data of first check point and further includes,

It is an initial value to set an iterations；

According to the situation that the described first tube current value to be corrected is updated to the actual tube current value, the iteration time is updated Number；

Compare the iterations and an iterations threshold value, and

When the iterations is more than the iterations threshold value, mistake is reported.

6. the method described in claim 1, the actual tube current value corresponds to one the one of unwrapping wire time point in a unwrapping wire Individual tube current value or corresponding in the average value of multiple tube current values at multiple unwrapping wire time point in a unwrapping wire at least One.

7. the method described in claim 1, further includes to correct multiple check points, one pipe electricity of the multiple check point correspondence Pressure value, the multiple check point includes first check point and second check point, and second check point corresponds to extremely A few second tube current value to be corrected, the first tube current value to be corrected is located at first interval, second pipe to be corrected Current value is located at outside the first interval.

8. the method described in claim 7, further includes：

First check point is corrected, the 4th heater current correction data is determined；

According to the 4th heater current data, data fitting is carried out；

According to the data fitting result, the corresponding second tube current value to be corrected of the tube voltage value is determined, and

Based on the described second tube current value to be corrected, second check point is determined.

9. the method described in claim 1, further includes：

Determine the corresponding first heater current correction data of the first tube voltage value；

Determine the corresponding second heater current correction data of the second tube voltage value；And

Difference based on the first tube voltage value and the second tube voltage value, the first heater current correction data and institute At least one of second heater current correction data is stated, the corresponding triple-filament current correction number of the 3rd tube voltage value is determined According to.

10. a kind of X-ray tube heater current data correction system, an including correction module, the correction module is configured as：

Obtain the corresponding first tube current value to be corrected of the first check point and filament current value to be corrected；

According to the described first tube current value to be corrected and the filament current value to be corrected, a payoff operation is performed；

Determine an actual tube current value in the payoff operation；

Determine the difference of the actual tube current value and the first tube current value to be corrected；And

First check point is corrected according to the difference.