CN110215225A - X ray source scanning parameter adjusting method, device, computer equipment and readable storage medium storing program for executing - Google Patents
X ray source scanning parameter adjusting method, device, computer equipment and readable storage medium storing program for executing Download PDFInfo
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- CN110215225A CN110215225A CN201910425379.3A CN201910425379A CN110215225A CN 110215225 A CN110215225 A CN 110215225A CN 201910425379 A CN201910425379 A CN 201910425379A CN 110215225 A CN110215225 A CN 110215225A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/46—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with special arrangements for interfacing with the operator or the patient
- A61B6/467—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with special arrangements for interfacing with the operator or the patient characterised by special input means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
Abstract
The present invention provides a kind of X ray source scanning parameter adjusting method, which comprises obtains X ray source scanning parameter, the X ray source scanning parameter includes the swing circle of target disc and the energy period of x-ray source；Determine the ratio of the swing circle Yu energy period；If the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that the ratio meets the preset condition；The preset condition is the first preset condition or the second preset condition, and first preset condition is the swing circle and the ratio in energy period is not equal to integer, and second preset condition is that the swing circle and the ratio in energy period are equal to half-integer.X ray source scanning parameter adjusting method provided by the invention, by adjusting anode disc swing circle and x-ray source energy period, so that anode disc swing circle is not the integral multiple in x-ray source energy period, to avoid the appearance of " anode disc energy beat frequency phenomenon ", the thermal-induced deformation for reducing anode disc, promotes the service life of anode disc.
Description
Technical field
The present invention relates to medical imaging technology field more particularly to a kind of X ray source scanning parameter adjusting method, device,
Computer equipment and readable storage medium storing program for executing.
Background technique
Dual energy CT scan (Computed Tomography, CT) can be using substance in not
The different absorption characteristics of the X-ray of co-energy level analyze material composition, to improve itself development energy to soft tissue
Power has very high clinical value.The quick kilovolt of single source CT switches one kind as dual energy CT, relative to biography
The double source CT of system have many advantages, such as simultaneously, it is homologous, in the same direction, be the dual-energy imaging method of function admirable.
X-ray source mainly generates thermoelectron by heating cathode filament, using thermoelectron to the bombardment of anode disc come
Generate X-ray.Since the output power of high pressure generator is up to hundred kilowatts, along with thermoelectron only less than 1% energy
It can be converted into X-ray sending, remaining is more than that 99% energy will be deposited on anode disc in a manner of thermal energy.In order to keep away
Exempt to cause x-ray source to be scrapped because anode disc overheats, increases the equivalent of anode disc often through rotating disc and dissipate
Heat area.The continuous rotation of anode disc, enabling to itself uniformly to bear with different positions, x-ray source is thermionic to be banged
It hits, to improve heat-sinking capability.
X-ray source inside single source CT when carrying out the switching of quick kilovolt, x-ray source need high-energy (such as
It 140KV) is switched fast between low energy (such as 80KV), since tube current is difficult to quickly adjust at this time, this will lead to electron beam
With high power and low-power both different capacity state constant bombardment anode discs.At the same time, the continuous rotation of anode disc
Turn, so that the different location of anode disc bears the energy bombardment of high power or low-power.
But anode disc, when being rotated with certain speed, a part of disk in anode disc disk will always
The bombardment of high-energy projection is born, another part disk will bear the bombardment that low energy projects always, and (it is known as " sun by the application
Pole target disc energy beat frequency phenomenon ").As shown in Figure 1, be alternately present 10 on anode disc bears high power (P alwaysh) energy Hong
The 18 ° of fan-shaped regions hit and 10 bear low-power (P alwaysl) energy bombardment 18 ° of fan-shaped regions." anode disc energy
Beat frequency phenomenon " not only will lead to being thermally deformed for high-low power region and generate almost, influences focus when high and low energy, can also reduce
The service life of anode disc.
Summary of the invention
In view of this, it is necessary to provide a kind of X ray source scanning parameter adjusting method, device, computer equipments and readable
Storage medium, the X ray source scanning parameter adjusting method can improve to avoid the appearance of " anode disc energy beat frequency phenomenon "
Anode disc stability and service life.
The present invention provides a kind of X ray source scanning parameter adjusting method, which comprises
X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle and x-ray source of target disc
The energy period；
Determine the ratio of the swing circle Yu energy period；
If the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that the ratio meets institute
State preset condition；The preset condition is the first preset condition or the second preset condition, and first preset condition is the rotation
The ratio in turn-week phase and energy period is not equal to integer, and second preset condition is the ratio of the swing circle and energy period
Value is equal to half-integer.
Further, if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that
The ratio meet the preset condition include: the preset condition be the first preset condition；
If the ratio is unsatisfactory for the first preset condition, the X ray source scanning parameter is adjusted, so that the ratio is full
Foot first preset condition.
Further, if the ratio is unsatisfactory for the first preset condition, the X ray source scanning parameter is adjusted,
So that the ratio meets first preset condition includes:
If the ratio is unsatisfactory for the first preset condition, the swing circle of the target disc and/or the energy of x-ray source are adjusted
The period is measured, so that the ratio meets first preset condition.
Further, if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that
The ratio meet the preset condition include: the preset condition be the second preset condition；
If the ratio is unsatisfactory for the second preset condition, the X ray source scanning parameter is adjusted, so that the ratio is full
Foot second preset condition.
Further, if the ratio is unsatisfactory for the second preset condition, the X ray source scanning parameter is adjusted,
So that the ratio meets second preset condition:
If the ratio is unsatisfactory for the second preset condition, the swing circle of the target disc and/or the energy of x-ray source are adjusted
The period is measured, so that the ratio meets second preset condition.
Further, the method also includes:
According to the swing circle and energy period progress image scanning after adjusting.
Further, which comprises
If the ratio meets preset condition, image scanning is carried out according to current X ray source scanning parameter.
The present invention also provides a kind of x-ray source parameter adjustment control, described device includes:
Module is obtained, for obtaining X ray source scanning parameter；
Determining module, for determining the ratio relation formula of the swing circle Yu energy period；
Adjustment module, for when the ratio relation formula is unsatisfactory for preset condition, adjusting the X ray source scanning ginseng
Number, so that the ratio relation formula meets the preset condition.
The present invention also provides a kind of computer equipment, including memory and processor, the memory is stored with computer
The step of program, the processor realizes any of the above-described the method when executing the computer program.
The present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, and feature exists
In the step of realizing preceding claim described in any item methods when the computer program is executed by processor.
X ray source scanning parameter adjusting method provided by the invention, by adjusting anode disc swing circle and x-ray source
The energy period, so that anode disc swing circle is not the integral multiple in x-ray source energy period, to avoid " anode disc energy
The appearance of amount beat frequency phenomenon ", reduces the thermal-induced deformation of anode disc, promotes the service life of anode disc.Further, the present invention mentions
The X ray source scanning parameter adjusting method of confession, by the way that anode disc swing circle is adjusted to the half whole of x-ray source energy period
Several times further improve the service life of anode disc so that the heat distribution on anode disc is relatively uniform.
Detailed description of the invention
Fig. 1 is the Energy distribution on anode disc surface of the traditional CT machine when carrying out the switching of quick kilovolt；
Fig. 2 is the flow diagram for inventing X ray source scanning parameter adjusting method in an embodiment；
When Fig. 3 is the swing circle of anode disc and the ratio in the energy period of x-ray source the first preset condition of satisfaction
The Energy distribution on anode disc surface；
When Fig. 4 is the swing circle of anode disc and the ratio in the energy period of x-ray source the second preset condition of satisfaction
The Energy distribution on anode disc surface；
Fig. 5 is the structural block diagram of x-ray source parameter adjustment control in one embodiment of the present invention；
Fig. 6 is the internal structure chart of computer equipment in one embodiment of the present invention.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Referring to Fig. 2, the present invention provides a kind of X ray source scanning parameter adjusting method, this method is for adjusting x-ray source
Sweep parameter (swing circle and energy period) so that x-ray source can be avoided " anode disc energy beat frequency phenomenon "
Appearance, promote the operation stability and service life of x-ray source.
In present embodiment, X ray source scanning parameter adjusting method provided by the invention is calculated applied to dual energy electronics
X-ray source parameter regulation in machine tomoscan (Computed Tomography, CT), to adjust the energy imaging of CT machine
Scanning mode, so that CT machine can be avoided the appearance of " anode disc energy beat frequency phenomenon " when carrying out quick kilovolt and switching, into
And guarantee Iimaging Stability of the CT machine in the different absorption characteristics of the X-ray of analyte confrontation different-energy level, have non-
Often high clinical value.
It should be noted that herein referred x-ray source refers to the equipment that can give off X-ray；In this embodiment party
In formula, x-ray source can be bulb and high-voltage generator.
It is appreciated that in other implementations, X ray source scanning parameter adjusting method provided by the invention can be with
Applied in other medical instruments other than CT such as PET-CT；Certainly, X ray source scanning parameter regulation provided by the invention
Method is applied in the scientific researches measuring devices such as X-ray diffraction measurement analysis；As long as the x-ray source in these equipment is able to use this
The X ray source scanning parameter adjusting method provided is provided.
In traditional CT scan technology, while the switching of the quick kilovolt of Dan Yuan CT is had, homologous, in the same direction etc. excellent
Point, so that the quick kilovolt handoff technique of list source CT becomes widely used double-energy scanning imaging mode.But when single source
CT when carrying out the switching of quick kilovolt, quickly cut between high-energy (such as 140KV) and low energy (such as 80KV) by x-ray source needs
It changes, and with high power and low-power both different capacity state constant bombardment anode discs.At the same time, anode disc is not
Disconnected rotation, so that the different location of anode disc bears the energy bombardment of high power or low-power.
For anode disc when being rotated with certain speed, a part of disk in anode disc disk will bear height always
The bombardment of energy projection, another part disk by always bear low energy project bombardment (namely the application it is so-called above " sun
Pole target disc energy beat frequency phenomenon ").
Referring again to Fig. 1, T the time required to anode disc rotates a circle at this timerotAbout 7700us, the energy week of x-ray source
Phase TviewWhile rotating a circle for 1100us namely anode disc, x-ray source can form ten in the disk of anode disc
Energy distribution.The energy profile that interior outside two is enclosed illustrates to rotate two weeks in anode disc, disk of the x-ray source in anode disc
The Energy distribution being formed by different time nodes on face, x-ray source is in first swing circle T of anode discrotUpper formation
Energy distribution be Round1, x-ray source is in second swing circle T of anode discrotThe Energy distribution of upper formation is Round2。
It can be seen that whether Round1Or Round2, the Energy distribution on anode disc is identical namely anode
It can be alternately present 10 on target disc and bear high power (P alwaysh) energy bombardment 18 ° of fan-shaped regions and 10 bear always it is low
Power (Pl) energy bombardment 18 ° of fan-shaped regions.
And work as TrotFor 7700us, energy cycle TviewWhen for 1100us, 7 are alternately present on anode disc and is born always
High power (Ph) energy bombardment 25.7 ° of fan-shaped regions and 7 always bear low-power (Pl) energy bombardment 25.7 ° of sectors
Region.
Appearance by a large amount of experimental analysis and theory analysis, " anode disc energy beat frequency phenomenon " is due to anode target
The swing circle T of diskrotPrecisely x-ray source energy cycle TviewIntegral multiple.Namely although anode disc is in lasting rotation,
But it is identical as distribution of anode disc when static to be formed by Energy distribution in the disk of x-ray source anode disc, scans energy
Amount is fixed in a manner of stroboscopic in the disk of anode disc, namely has occurred that so-called above " anode disc energy beat frequency is existing
As ".
Referring again to Fig. 2, X ray source scanning parameter adjusting method provided by the invention includes:
Step S21: X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of anode disc
And the energy period of x-ray source.
Specifically, the swing circle T of anode discrotAnd the energy cycle T of x-ray sourceviewParameter obtain, both may be used
To be recorded to obtain by the input value to user, can also be surveyed by the sensing to anode disc and x-ray source parameter
It measures.Wherein, the swing circle T of anode discrotIt is determined by high pressure generator, the energy cycle T of x-ray sourceviewIn this reality
It applies in mode and is codetermined by CT machine system and high pressure generator.
In view of sensing measurement is to the burden of machine system, in actual parameters acquiring procedure, the rotation of anode disc
Cycle TrotAnd the energy cycle T of x-ray sourceviewNumerical value obtain often through record user input value obtain.
Step S22: the ratio of the swing circle Yu energy period is determined.
Specifically, the swing circle T of anode disc is calculated using devices such as processorsrotWith the energy period of x-ray source
TviewRatio cc namely α=Trot/Tview。
Step S23: if the ratio is unsatisfactory for preset condition, adjusting the X ray source scanning parameter, so that the ratio
Value meets the preset condition；The preset condition is the first preset condition or the second preset condition, first preset condition
It is not equal to integer for the swing circle and the ratio in energy period, second preset condition is the swing circle and energy
The ratio in period is equal to half-integer.
Specifically, the first preset condition ξ1For the swing circle T of anode discrotWith the energy cycle T of x-ray sourceview's
Ratio cc is not equal to integer, the second preset condition ξ2For the swing circle T of anode discrotWith the energy cycle T of x-ray sourceview's
Ratio cc is equal to half-integer.
It should be noted that " half-integer " in " α is equal to half-integer " is the half-integer on mathematical sense, in mathematics
On set expression be Z+1/2 (Z indicate integer), such as half-integer can be 4 and 1/2,7/2 etc. numbers.
By adjusting X ray source scanning parameter, so that calculating the swing circle T of anode disc using devices such as processorsrot
With the energy cycle T of x-ray sourceviewRatio cc meet the first preset condition ξ1Or the second preset condition ξ2。
It is the swing circle T of anode disc also referring to Fig. 3, Fig. 3rotWith the energy cycle T of x-ray sourceviewRatio
α meets the first preset condition ξ1When anode disc surface Energy distribution.
As the swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio cc meet the first preset condition
ξ1Namely α be not equal to integer when, distribution of the X ray source scanning energy on anode disc will be with the continuous rotation of anode disc
Then change, fixed area is not had on anode disc and bears high power (P alwaysh) energy bombardment or low-power
(Pl) energy bombardment, namely eliminate " anode disc energy beat frequency phenomenon ".X-ray source is illustrated in Fig. 3 in anode disc
Three swing circle TrotFormed in Energy distribution.As can be seen that being formed by Energy distribution in different cycles
Round1、Round2And Round3In, three periods be formed by Energy distribution be different namely anode disc on without solid
High power (P can be born always by determining regionh) energy bombardment or low-power (Pl) energy bombardment.
Referring to Figure 4 together, Fig. 4 is the swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio
α meets the second preset condition ξ2When anode disc surface Energy distribution.
The swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio cc meet the second preset condition ξ2,
Namely α be equal to half-integer when, distribution of the X ray source scanning energy on anode disc by with anode disc it is continuous rotate and
It changes, does not have fixed area on anode disc and bear high power (P alwaysh) energy bombardment or low-power (Pl)
Energy bombardment, namely eliminate " anode disc energy beat frequency phenomenon ".
Further, in two swing circle T of anode discrotIn, previous swing circle TrotCarry high power
(Ph) energy bombardment region, in the latter swing circle TrotIt is middle to carry low-power (Pl) energy bombardment；In previous rotation
Turn cycle TrotCarry low-power (Pl) energy bombardment region, in the latter swing circle TrotIt is middle to carry high power (Ph)
Energy bombardment.Namely the variation of half rank between different cycles, anode target will be macroscopically presented in the Energy distribution on anode disc
The same area will staggeredly carry high power (P on diskh) energy bombardment and low-power (Pl) energy bombardment.Anode target at this time
Macroscopically all in the state of thermally equivalent, it can be avoided the appearance of the high Warm status of regional area on disk, be conducive to heat
It distributes.
X ray source scanning parameter adjusting method provided by the invention improves sun using the sweep parameter for adjusting x-ray source
The uniformity of Energy distribution on the target disc of pole avoids anode disc part high to promote anode disc to the heat-sinking capability of heat
The appearance of temperature, and then promote the operation stability and service life of entire x-ray source.
Additional description is needed, the present invention can also pass through the energy cycle T of adjusting x-ray sourceviewWith anode disc
Swing circle TrotRatio (inverse of α), or by adjust several times anode disc swing circle TrotWith it is several
The energy cycle T of x-ray source againviewRatio (multiple of α) come so that anode disc evades falling " anode disc energy beat frequency
Phenomenon "；These variations are only simple change of the step S23 of the present invention in mathematical computations, and therefore not to repeat here.
In an embodiment of the invention, step S23 includes step S231:
Step S231: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；The preset condition is the first preset condition；If the ratio is unsatisfactory for the first preset condition,
The X ray source scanning parameter is then adjusted, so that the ratio meets first preset condition.
Specifically, as the swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio cc meet first
Preset condition ξ1When, distribution of the X ray source scanning energy on anode disc will occur with the continuous rotation of anode disc
Change, does not have fixed area on anode disc and bear high power (P alwaysh) energy bombardment or low-power (Pl) energy
Bombardment, namely eliminate " anode disc energy beat frequency phenomenon ".
X ray source scanning parameter adjusting method includes: at this time
Step S21: X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of anode disc
And the energy period of x-ray source；
Step S22: the ratio of the swing circle Yu energy period is determined；
Step S231: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；The preset condition is the first preset condition；If the ratio is unsatisfactory for the first preset condition,
The X ray source scanning parameter is then adjusted, so that the ratio meets first preset condition.
X ray source scanning parameter adjusting method in present embodiment has the sweep parameter of x-ray source biggish feasible
Domain, this reduces operand of the hardware devices such as processor in judgement and calculating, X ray source scanning parameter adjusting methods pair
The dependency degree of hardware device performance reduces, and the prospect of application is opposite to be promoted.
Further, step S231 includes step S2311:
Step S2311: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；The preset condition is the first preset condition；If the ratio is unsatisfactory for the first preset condition,
The swing circle of the anode disc and/or the energy period of x-ray source are then adjusted, so that the ratio meets described first in advance
If condition.
Specifically, pass through the swing circle T of adjusting anode discrotAnd/or the energy cycle T of x-ray sourceview, come so that
The swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio cc meet the first preset condition ξ1.That is, both
The swing circle T of adjusting anode disc can be passed throughrotCome so that ratio cc meets the first preset condition ξ1, adjusting can also be passed through
The energy cycle T of x-ray sourceviewCome so that ratio cc meets the first preset condition ξ1, can also be by adjusting anode disc simultaneously
Swing circle TrotAnd the energy cycle T of x-ray sourceviewTo make α meet the first preset condition ξ1。
In view of the swing circle T of anode discrotReaction rate in adjusting is smaller, and anode disc is needed with longer
Time can just be stably held in target swing circle TrotOn, therefore preferably pass through the energy cycle T of x-ray sourceviewCome so that
Ratio cc meets the first preset condition ξ1。
X ray source scanning parameter adjusting method includes: at this time
Step S21: X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of anode disc
(Trot) and x-ray source energy period (Tview)；
Step S22: the ratio of the swing circle Yu energy period is determined；
Step S2311: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；The preset condition is the first preset condition；If the ratio is unsatisfactory for the first preset condition,
The swing circle of the anode disc and/or the energy period of x-ray source are then adjusted, so that the ratio meets described first in advance
If condition.
The swing circle T that X ray source scanning parameter adjusting method in present embodiment passes through adjusting anode discrotAnd/
Or the energy cycle T of x-ray sourceviewChange the numerical value of ratio cc, the substantivity not only adjusted is strong, and error is low, and system tune
The reaction of section is more sensitive.
In an embodiment of the invention, step S23 includes step S232:
Step S232: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；The preset condition is the second preset condition；If the ratio is unsatisfactory for the second preset condition,
The X ray source scanning parameter is then adjusted, so that the ratio meets second preset condition.
Specifically, as the swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio cc meet second
Preset condition ξ2When, distribution of the X ray source scanning energy on anode disc will occur with the continuous rotation of anode disc
Change, does not have fixed area not only on anode disc and bear high power (P alwaysh) energy bombardment or low-power (Pl)
Energy bombardment, and the variation of half rank between different cycles, Ye Jiyang will be macroscopically presented in the Energy distribution on anode disc
The same area will staggeredly carry high power (P on the target disc of poleh) energy bombardment and low-power (Pl) energy bombardment.It is positive at this time
Macroscopically all in the state of thermally equivalent, it can be avoided the appearance of the high Warm status of regional area on the target disc of pole, be conducive to heat
Amount distributes.Namely the optimization of Energy distribution is realized on the basis of " anode disc energy beat frequency phenomenon " is eliminated.
X ray source scanning parameter adjusting method includes: at this time
Step S21: X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of anode disc
And the energy period of x-ray source；
Step S22: the ratio of the swing circle Yu energy period is determined；
Step S232: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；The preset condition is the second preset condition；If the ratio is unsatisfactory for the second preset condition,
The X ray source scanning parameter is then adjusted, so that the ratio meets second preset condition.
X ray source scanning parameter adjusting method in present embodiment enables to the scanning energy of x-ray source in anode
There is optimal distribution, anode disc can be avoided itself part in the state for being macroscopically in thermally equivalent on target disc
There is high Warm status in region, is conducive to distributing for heat.
Further, step S232 includes step S2321:
Step S2321: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；If the ratio is unsatisfactory for the second preset condition, adjust the target disc swing circle and/
Or the energy period of x-ray source, so that the ratio meets second preset condition.
Specifically, pass through the swing circle T of adjusting anode discrotAnd/or the energy cycle T of x-ray sourceview, come so that
The swing circle T of anode discrotWith the energy cycle T of x-ray sourceviewRatio cc meet the second preset condition ξ2.That is, both
The swing circle T of adjusting anode disc can be passed throughrotCome so that ratio cc meets the second preset condition ξ2, adjusting can also be passed through
The energy cycle T of x-ray sourceviewCome so that ratio cc meets the second preset condition ξ2, can also be by adjusting anode disc simultaneously
Swing circle TrotAnd the energy cycle T of x-ray sourceviewTo make α meet the second preset condition ξ2。
In view of the swing circle T of anode discrotReaction rate in adjusting is smaller, and anode disc is needed with longer
Time can just be stably held in target swing circle TrotOn, therefore preferably pass through the energy cycle T of x-ray sourceviewCome so that
Ratio cc meets the second preset condition ξ2。
X ray source scanning parameter adjusting method includes: at this time
Step S21: X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of anode disc
And the energy period of x-ray source；
Step S22: the ratio of the swing circle Yu energy period is determined；
Step S2321: if the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that described
Ratio meets the preset condition；If the ratio is unsatisfactory for the second preset condition, adjust the target disc swing circle and/
Or the energy period of x-ray source, so that the ratio meets second preset condition.
The swing circle T that X ray source scanning parameter adjusting method in present embodiment passes through adjusting anode discrotAnd/
Or the energy cycle T of x-ray sourceviewChange the numerical value of ratio cc, the substantivity not only adjusted is strong, and error is low, and system tune
The reaction of section is more sensitive.
In an embodiment of the invention, the X ray source scanning parameter adjusting method also wraps after step S23
Include step S24:
Step S24: according to the swing circle and energy period progress image scanning after adjusting.
X ray source scanning parameter adjusting method in present embodiment includes:
Step S21: X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of anode disc
And the energy period of x-ray source；
Step S22: the ratio of the swing circle Yu energy period is determined；
Step S23: if the ratio is unsatisfactory for preset condition, adjusting the X ray source scanning parameter, so that the ratio
Value meets the preset condition；The preset condition is the first preset condition or the second preset condition, first preset condition
It is not equal to integer for the swing circle and the ratio in energy period, second preset condition is the swing circle and energy
The ratio in period is equal to half-integer；
Step S24: according to the swing circle and energy period progress image scanning after adjusting.
The X ray source scanning parameter adjusting method that present embodiment provides is after x-ray source parameter regulation, so that X
Radiographic source can go on smoothly energy scan, so that x-ray source can smoothly inspire X-ray, and avoid " anode target
Disk energy beat frequency phenomenon ".
In an embodiment of the invention, the X ray source scanning parameter adjusting method further includes step S25:
Step S25: if the ratio meets preset condition, imaging is carried out according to current X ray source scanning parameter and is swept
It retouches.
Specifically, if current X-ray source sweep parameter meets the first preset condition ξ1Or the second preset condition ξ2, then
Show that the Energy distribution on the anode disc in x-ray source at this time is not in concentration phenomenon, namely x-ray source at this time is
The appearance for being avoided " anode disc energy beat frequency phenomenon ", without carrying out the adjusting of energy parameter again.
It should be understood that although each step in the flow chart of Fig. 2 is successively shown according to the instruction of arrow, this
A little steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these steps
It executes there is no the limitation of stringent sequence, these steps can execute in other order.Moreover, at least part in Fig. 2
Step may include that perhaps these sub-steps of multiple stages or stage are executed in synchronization to multiple sub-steps
It completes, but can execute at different times, the execution sequence in these sub-steps or stage, which is also not necessarily, successively to be carried out,
But it can be executed in turn or alternately at least part of the sub-step or stage of other steps or other steps.
Please refer to fig. 5, the present invention also provides a kind of x-ray source parameter adjustment control, described device includes:
Module 100 is obtained, for obtaining X ray source scanning parameter；
Determining module 200, for calculating the ratio relation formula of the swing circle Yu energy period；
Adjustment module 300, for adjusting the X ray source scanning when the ratio relation formula is unsatisfactory for preset condition
Parameter, so that the ratio relation formula meets the preset condition.
Specific restriction about x-ray source parameter adjustment control may refer to above for X ray source scanning parameter tune
The restriction of section method, details are not described herein.Modules in above-mentioned x-ray source parameter adjustment control can be fully or partially through
Software, hardware and combinations thereof are realized.Above-mentioned each module can be embedded in the form of hardware or independently of the place in computer equipment
It manages in device, can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution or more
The corresponding operation of modules.
In an embodiment of the invention, a kind of computer equipment is provided, which can be terminal,
Its internal structure chart can be as shown in Figure 6.The computer equipment includes processor, the memory, net connected by system bus
Network interface, display screen and input unit.Wherein, the processor of the computer equipment is for providing calculating and control ability.The meter
The memory for calculating machine equipment includes non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operation system
System and computer program.The built-in storage provides for the operation of operating system and computer program in non-volatile memory medium
Environment.The network interface of the computer equipment is used to communicate with external terminal by network connection.The computer program is located
It manages when device executes to realize a kind of X ray source scanning parameter adjusting method.The display screen of the computer equipment can be liquid crystal
Display screen or electric ink display screen, the input unit of the computer equipment can be the touch layer covered on display screen, can also
To be the key being arranged on computer equipment shell, trace ball or Trackpad, external keyboard, Trackpad or mouse can also be
Deng.
It will be understood by those skilled in the art that structure shown in Fig. 6, only part relevant to application scheme is tied
The block diagram of structure does not constitute the restriction for the computer equipment being applied thereon to application scheme, specific computer equipment
It may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.
In one embodiment, a kind of computer equipment, including memory and processor are provided, is stored in memory
Computer program, the processor perform the steps of when executing computer program
X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle and x-ray source of target disc
The energy period；
Determine the ratio of the swing circle Yu energy period；
If the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that the ratio meets institute
State preset condition；The preset condition is the first preset condition or the second preset condition, and first preset condition is the rotation
The ratio in turn-week phase and energy period is not equal to integer, and second preset condition is the ratio of the swing circle and energy period
Value is equal to half-integer.
In one embodiment, it is also performed the steps of when processor executes computer program
The preset condition is the first preset condition；If the ratio is unsatisfactory for the first preset condition, adjusts the X and penetrate
Scanning with line-focus source parameter, so that the ratio meets first preset condition.
In one embodiment, it is also performed the steps of when processor executes computer program
If the ratio is unsatisfactory for the first preset condition, the swing circle of the target disc and/or the energy of x-ray source are adjusted
The period is measured, so that the ratio meets first preset condition.
In one embodiment, it is also performed the steps of when processor executes computer program
The preset condition is the second preset condition；
If the ratio is unsatisfactory for the second preset condition, the X ray source scanning parameter is adjusted, so that the ratio is full
Foot second preset condition.
In one embodiment, it is also performed the steps of when processor executes computer program
If the ratio is unsatisfactory for the second preset condition, the swing circle of the target disc and/or the energy of x-ray source are adjusted
The period is measured, so that the ratio meets second preset condition.
In one embodiment, it is also performed the steps of when processor executes computer program
According to the swing circle and energy period progress image scanning after adjusting.
In one embodiment, it is also performed the steps of when processor executes computer program
If the ratio meets preset condition, image scanning is carried out according to current X ray source scanning parameter.
In an embodiment of the invention, a kind of computer readable storage medium is provided, calculating is stored thereon with
Machine program, performs the steps of when computer program is executed by processor
X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle and x-ray source of target disc
The energy period；
Determine the ratio of the swing circle Yu energy period；
If the ratio is unsatisfactory for preset condition, the X ray source scanning parameter is adjusted, so that the ratio meets institute
State preset condition；The preset condition is the first preset condition or the second preset condition, and first preset condition is the rotation
The ratio in turn-week phase and energy period is not equal to integer, and second preset condition is the ratio of the swing circle and energy period
Value is equal to half-integer.
In one embodiment, it is also performed the steps of when computer program is executed by processor
The preset condition is the first preset condition；If the ratio is unsatisfactory for the first preset condition, adjusts the X and penetrate
Scanning with line-focus source parameter, so that the ratio meets first preset condition.
In one embodiment, it is also performed the steps of when computer program is executed by processor
If the ratio is unsatisfactory for the first preset condition, the swing circle of the target disc and/or the energy of x-ray source are adjusted
The period is measured, so that the ratio meets first preset condition.
In one embodiment, it is also performed the steps of when computer program is executed by processor
The preset condition is the second preset condition；
If the ratio is unsatisfactory for the second preset condition, the X ray source scanning parameter is adjusted, so that the ratio is full
Foot second preset condition.
In one embodiment, it is also performed the steps of when computer program is executed by processor
If the ratio is unsatisfactory for the second preset condition, the swing circle of the target disc and/or the energy of x-ray source are adjusted
The period is measured, so that the ratio meets second preset condition.
In one embodiment, it is also performed the steps of when computer program is executed by processor
According to the swing circle and energy period progress image scanning after adjusting.
In one embodiment, it is also performed the steps of when computer program is executed by processor
If the ratio meets preset condition, image scanning is carried out according to current X ray source scanning parameter.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of X ray source scanning parameter adjusting method, which is characterized in that the described method includes:
X ray source scanning parameter is obtained, the X ray source scanning parameter includes the swing circle of target disc and the energy of x-ray source
Period；
Determine the ratio of the swing circle Yu energy period；
If the ratio is unsatisfactory for preset condition, adjust the X ray source scanning parameter so that the ratio meet it is described pre-
If condition；The preset condition is the first preset condition or the second preset condition, and first preset condition is the revolution
The ratio in phase and energy period is not equal to integer, and second preset condition is the ratio etc. of the swing circle and energy period
In half-integer.
2. X ray source scanning parameter adjusting method as described in claim 1, which is characterized in that if the ratio is discontented
Sufficient preset condition then adjusts the X ray source scanning parameter, so that it includes: described pre- that the ratio, which meets the preset condition,
If condition is the first preset condition；
If the ratio is unsatisfactory for the first preset condition, the X ray source scanning parameter is adjusted, so that the ratio meets institute
State the first preset condition.
3. X ray source scanning parameter adjusting method as claimed in claim 2, which is characterized in that if the ratio is discontented
The first preset condition of foot, then adjust the X ray source scanning parameter, so that the ratio meets the first preset condition packet
It includes:
If the ratio is unsatisfactory for the first preset condition, the swing circle of the target disc and/or the energy week of x-ray source are adjusted
Phase, so that the ratio meets first preset condition.
4. X ray source scanning parameter adjusting method as described in claim 1, which is characterized in that if the ratio is discontented
Sufficient preset condition then adjusts the X ray source scanning parameter, so that it includes: described pre- that the ratio, which meets the preset condition,
If condition is the second preset condition；
If the ratio is unsatisfactory for the second preset condition, the X ray source scanning parameter is adjusted, so that the ratio meets institute
State the second preset condition.
5. X ray source scanning parameter adjusting method as claimed in claim 4, which is characterized in that if the ratio is discontented
The second preset condition of foot, then adjust the X ray source scanning parameter, so that the ratio meets second preset condition:
If the ratio is unsatisfactory for the second preset condition, the swing circle of the target disc and/or the energy week of x-ray source are adjusted
Phase, so that the ratio meets second preset condition.
6. X ray source scanning parameter adjusting method as described in claim 1, which is characterized in that the method also includes:
According to the swing circle and energy period progress image scanning after adjusting.
7. X ray source scanning parameter adjusting method as described in claim 1, which is characterized in that the described method includes:
If the ratio meets preset condition, image scanning is carried out according to current X ray source scanning parameter.
8. a kind of x-ray source parameter adjustment control, which is characterized in that described device includes:
Module is obtained, for obtaining X ray source scanning parameter；
Determining module, for determining the ratio relation formula of the swing circle Yu energy period；
Adjustment module, for adjusting the X ray source scanning parameter when the ratio relation formula is unsatisfactory for preset condition, with
The ratio relation formula is set to meet the preset condition.
9. a kind of computer equipment, including memory and processor, the memory are stored with computer program, feature exists
In the step of processor realizes any one of claims 1 to 7 the method when executing the computer program.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any one of claims 1 to 7 is realized when being executed by processor.
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| JP2010063758A (en) * | 2008-09-12 | 2010-03-25 | Toshiba Corp | X-ray ct apparatus and data collection method for x-ray ct apparatus |
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