CN109392234A - A kind of method and device that signal generates - Google Patents
A kind of method and device that signal generates Download PDFInfo
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- CN109392234A CN109392234A CN201811318950.3A CN201811318950A CN109392234A CN 109392234 A CN109392234 A CN 109392234A CN 201811318950 A CN201811318950 A CN 201811318950A CN 109392234 A CN109392234 A CN 109392234A
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Abstract
A kind of method and device that signal generates, comprising: generate initial lateral rf excitation signal according to beam parameters；Amplitude adjustment is carried out to the initial lateral rf excitation signal of generation, obtains the first radiofrequency signal；Impedance conversion process is carried out to the first radiofrequency signal of acquisition, obtains the second radiofrequency signal；Second radiofrequency signal of acquisition is loaded on into transverse electrode, obtains the radiofrequency signal for being used for line transversely excited.The embodiment of the present invention simplifies the structure of synchrotron, reduces the cost of synchrotron.
Description
Technical field
Present document relates to but be not limited to nuclear technology, the method and device that espespecially a kind of signal generates.
Background technique
Proton-synchrotron be it is a kind of make proton in circular orbit shuttling movement using magnetically confined, and obtain high-frequency electrical
The accelerator installation that field accelerates, provides uniform proton beam for proton irradiation application.Its operational mode is by injector (such as straight line
Accelerator) provide proton beam inject synchrotron, proton in synchrotron constantly accumulation to regulation population, open
Beginning is carried out after accelerating to required energy by high frequency field, is drawn proton beam and is carried out irradiation application.Lateral rf excitation signal master
Be used to be laterally applied to the rf electric field of variation in line, from it is microcosmic it is upper change single proton track, from macroscopically increasing line
Emittance has important application in the measurement of operating point in slow draw.Slow to draw aspect, proton is after accelerating to predetermined energy six
Third order resonance stable region is gradually formed under the effect of pole iron.Before line extraction, emittance is less than stable region area.Laterally
When rf excitation signal makes beam emittance be gradually increased to be more than or equal to stable region boundary in the horizontal direction, line is just along side
Boundary's extended line controlled uniform is drawn, it is desirable that the frequency domain and spatial structure of lateral rf excitation signal and the line cross in spill process
Match to kinematic parameter.Operating point measurement aspect, lateral radiofrequency signal, which needs to miscarry in horizontal or vertical direction excitation beam, gives birth to
Biggish Orbit revolutionary, rf excitation signal have larger difference with when drawing slowly over the frequency domain.
It in the related technology, is independent using two sets for the lateral rf excitation signal production method of proton-synchrotron
Device generate respectively for slowly draw and operating point measurement rf excitation signal, cause space and cost on synchrotron
Waste.
Summary of the invention
It is the general introduction to the theme being described in detail herein below.This general introduction is not the protection model in order to limit claim
It encloses.
The embodiment of the present invention provides a kind of method and device that signal generates, and can integrate and survey for drawing slowly with operating point
The signal generation device of amount simplifies the structure of synchrotron, reduces the cost of synchrotron.
The embodiment of the invention provides a kind of methods that signal generates, comprising:
Initial lateral rf excitation signal is generated according to beam parameters；
Amplitude adjustment is carried out to the initial lateral rf excitation signal of generation, obtains the first radiofrequency signal；
Impedance conversion process is carried out to the first radiofrequency signal of acquisition, obtains the second radiofrequency signal；
Second radiofrequency signal of acquisition is loaded on into transverse electrode, obtains the radiofrequency signal for being used for line transversely excited.
Optionally, described to include: according to the initial lateral rf excitation signal of beam parameters generation
From frequency domain, the parameter of the initial lateral rf excitation signal is determined according to the beam parameters；
According to the parameter of the determining initial lateral rf excitation signal, the initial lateral RF excited letter is generated
Number；
Wherein, the parameter of the initial lateral rf excitation signal includes following one or more kinds of parameters: class signal
Type, frequency, bandwidth.
Optionally, before the initial lateral rf excitation signal of described pair of generation carries out amplitude adjustment, the method is also wrapped
It includes: including:
From time domain, the feedforward curve that amplitude adjustment is carried out to the initial lateral rf excitation signal is obtained.
Optionally, before this method further include:
It is controlled by preset RF switch, controls the excitation orientation of the initial lateral rf excitation signal of generation.
Optionally, when the initial lateral rf excitation signal of described pair of generation carries out amplitude adjustment, the method also includes:
Obtain the Bunch current change information of educt beaming flow；
According to the Bunch current change information of acquisition, to the initial lateral RF excited letter for carrying out amplitude adjustment
Number carry out amplitude correction.
Optionally, the strong change information of the stream according to acquisition repairs the initial lateral rf excitation signal progress amplitude
Just include:
According to the Bunch current change information of acquisition, by proportional integration PI feedback to described in progress amplitude adjustment
Initial transverse direction rf excitation signal carries out amplitude correction.
Optionally, the PI feedback includes the feedback of amplitude correction information determining according to the following formula:
In formula, V (n) is initial lateral rf excitation signal amplitude, KpProportionality coefficient, K are controlled for PIiIt controls and integrates for PI
Coefficient, IsFor the strong setting value of stream of educt beaming flow, ImIt (n) is the strong measured value of stream of the n-th circle educt beaming flow.
On the other hand, the embodiment of the invention also provides the devices that a kind of signal generates, comprising: signal generator, amplitude modulation
Controller, impedance transformer and loading unit；Wherein,
Signal generator is used for: generating initial lateral rf excitation signal according to beam parameters；
Amplitude adjustment control device is used for: being carried out amplitude adjustment to the initial lateral rf excitation signal of generation, is obtained the first radio frequency
Signal；
Impedance transformer is used for: being carried out impedance conversion process to the first radiofrequency signal of acquisition, is obtained the second radiofrequency signal；
Loading unit is used for: the second radiofrequency signal of acquisition being loaded on transverse electrode, obtains and is used for line transversely excited
Radiofrequency signal.
Optionally, the signal generator is specifically used for:
From frequency domain, the parameter of the initial lateral rf excitation signal is determined according to the beam parameters；
According to the parameter of the determining initial lateral rf excitation signal, the initial lateral RF excited letter is generated
Number；
Wherein, the parameter of the initial lateral rf excitation signal includes following one or more kinds of parameters: class signal
Type, frequency, bandwidth.
Optionally, described device further includes curve determining unit, is used for:
From time domain, the feedforward curve that amplitude adjustment is carried out to the initial lateral rf excitation signal is obtained.
Optionally, described device further includes RF switch, is used for:
The excitation orientation for the initial lateral rf excitation signal that control generates.
Optionally, the amplitude adjustment control device is also used to:
Obtain the Bunch current change information of educt beaming flow；
According to the Bunch current change information of acquisition, to the initial lateral rf excitation signal of amplitude adjustment into
Line amplitude amendment.
Optionally, the amplitude adjustment control device is according to the Bunch current change information of acquisition to the initial lateral RF excited
Signal carries out amplitude correction
According to the Bunch current change information of acquisition, amplitude is adjusted by proportional integration PI feedback described initial
Lateral rf excitation signal carries out amplitude correction.
Optionally, the PI feedback includes the feedback of amplitude correction information determining according to the following formula:
In formula, V (n) is initial lateral rf excitation signal amplitude, KpProportionality coefficient, K are controlled for PIiIt controls and integrates for PI
Coefficient, IsFor the strong setting value of stream of educt beaming flow, ImIt (n) is the strong measured value of stream of the n-th circle educt beaming flow.
Compared with the relevant technologies, technical scheme includes: to generate initial lateral RF excited letter according to beam parameters
Number；Amplitude adjustment is carried out to the initial lateral rf excitation signal of generation, obtains the first radiofrequency signal；To the first radio frequency of acquisition
Signal carries out impedance conversion process, obtains the second radiofrequency signal；Second radiofrequency signal of acquisition is loaded on into transverse electrode, is obtained
Radiofrequency signal for line transversely excited.The embodiment of the present invention simplifies the structure of synchrotron, reduces sync plus white
The cost of device.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the flow chart for the method that signal of the embodiment of the present invention generates；
Fig. 2 is the structural block diagram for the device that signal of the embodiment of the present invention generates；
Fig. 3 is the schematic diagram of the present invention the first application example feedforward curve.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Fig. 1 is the flow chart for the method that signal of the embodiment of the present invention generates, as shown in Figure 1, comprising:
Step 101 generates initial lateral rf excitation signal according to beam parameters；
It should be noted that the embodiment of the present invention, which generates initial lateral rf excitation signal according to beam parameters, to be applied
In proton-synchrotron.
Optionally, described to include: according to the initial lateral rf excitation signal of beam parameters generation
From frequency domain, the parameter of the initial lateral rf excitation signal is determined according to the beam parameters；
According to the parameter of the determining initial lateral rf excitation signal, the initial lateral RF excited letter is generated
Number；
Wherein, the parameter of the initial lateral rf excitation signal includes following one or more kinds of parameters: class signal
Type, frequency, bandwidth.
The embodiment of the present invention calculates beam parameters, including signal type, frequency, bandwidth etc. from frequency domain；Optionally, this hair
Bright embodiment generates wave file according to beam parameters, and the wave file of generation is downloaded to signal generator, generates initial horizontal
To rf excitation signal.Signal type of the embodiment of the present invention includes: double frequency scanning signal, separate function signal, white noise signal
Deng.For drawing application, signal frequency f slowlyk=(N ± q) frev, wherein N is arbitrary integer, and q is the fractional part of Q；Signal
BandwidthWherein, Δ qAIt is that there is the broadening of tuning (tune) value, Δ caused by various amplitude as particle
qCIt is tune value broadening caused by being not zero due to particle with momentum spread, and chromaticity, i.e. Δ qC=ξ Δ p/p, ξ is color
Product.Operating point is measured and is applied, signal frequency fk=(fmax-fmin)/2, wherein fmaxAnd fminRespectively maximum cyclotron frequency
With minimum cyclotron frequency, signal bandwidth Δ f=fmax-fmin。
Step 102 carries out amplitude adjustment to the initial lateral rf excitation signal of generation, obtains the first radiofrequency signal；
Optionally, before carrying out amplitude adjustment to the initial lateral rf excitation signal of generation, present invention method
Further include: include:
From time domain, the feedforward curve that amplitude adjustment is carried out to the initial lateral rf excitation signal is obtained.
The embodiment of the present invention is from time domain, the feedforward curve of calculating, for controlling the width of initial lateral rf excitation signal
Degree variation；For drawing application slowly, line transversely excited Strength Changes are matched, draw line uniformly in time structure；Letter
Number amplitude change curve V (n)=θ (n) β2c2md/qLeff, wherein n is circle number, and θ (n) is the deflection angle of every circle, and β is opposite
By the factor, c is the light velocity, and m is charge mass, and q is the quantity of electric charge, d distance between two electrodes；Leff is electrode effective length.It is right
It measures and applies in operating point, pumping signal amplitude is fixed value, such as V (n)=± 400.
Optionally, when carrying out amplitude adjustment to the initial lateral rf excitation signal of generation, present invention method is also
Include:
Obtain the Bunch current change information of educt beaming flow；
According to the Bunch current change information of acquisition, to carry out the initial lateral rf excitation signal of amplitude adjustment into
Line amplitude amendment.
Optionally, the embodiment of the present invention is according to the Bunch current change information of acquisition to the initial lateral RF excited letter
Number carry out amplitude correction include:
According to the Bunch current change information of acquisition, by proportional integration PI feedback to the described initial of progress amplitude adjustment
Lateral rf excitation signal carries out amplitude correction.
Optionally, PI of embodiment of the present invention feedback includes determining amplitude correction information according to the following formula:
In formula, V (n) is initial lateral rf excitation signal amplitude, KpProportionality coefficient is controlled for PI, Ki is PI control integral
Coefficient, IsFor the strong setting value of stream of educt beaming flow, ImIt (n) is the strong measured value of stream of the n-th circle educt beaming flow.
The strong change information of stream of real-time monitoring educt beaming flow of the embodiment of the present invention is corrected initial in real time by PI feedback mechanism
The amplitude of lateral rf excitation signal, closer to the intensity of line transverse direction RF excited, it is ensured that line is uniformly drawn.
Step 103 carries out impedance conversion process to the first radiofrequency signal of acquisition, obtains the second radiofrequency signal；
Second radiofrequency signal of acquisition is loaded on transverse electrode by step 104, obtains the radio frequency for being used for line transversely excited
Signal.
Optionally, before present invention method further include:
It is controlled by preset RF switch, controls the excitation orientation of the initial lateral rf excitation signal of generation.
It should be noted that the embodiment of the present invention is realized according to the determination of the excitation orientation of video pump signal to water
The control of flat or vertical direction excitation, the acquisition for the rf excitation signal that realization progress is drawn slowly and operating point measures.
Compared with the relevant technologies, technical scheme includes: to generate initial lateral RF excited letter according to beam parameters
Number；Amplitude adjustment is carried out to the initial lateral rf excitation signal of generation, obtains the first radiofrequency signal；To the first radio frequency of acquisition
Signal carries out impedance conversion process, obtains the second radiofrequency signal；Second radiofrequency signal of acquisition is loaded on into transverse electrode, is obtained
Radiofrequency signal for line transversely excited.The embodiment of the present invention simplifies the structure of synchrotron, reduces sync plus white
The cost of device.
Fig. 2 is the structural block diagram for the device that signal of the embodiment of the present invention generates, as shown in Figure 2, comprising: signal generator,
Amplitude adjustment control device, impedance transformer and loading unit；Wherein,
Signal generator is used for: generating initial lateral rf excitation signal according to beam parameters；
It should be noted that signal generator of the embodiment of the present invention, which has, generates dual-frequency function, separate function and white noise
Etc. a variety of swept-frequency signal abilities.
The signal generator is specifically used for:
From frequency domain, the parameter of the initial lateral rf excitation signal is determined according to the beam parameters；
According to the parameter of the determining initial lateral rf excitation signal, the initial lateral RF excited letter is generated
Number；
Wherein, the parameter of the initial lateral rf excitation signal includes following one or more kinds of parameters: class signal
Type, frequency, bandwidth
Amplitude adjustment control device is used for: being carried out amplitude adjustment to the initial lateral rf excitation signal of generation, is obtained the first radio frequency
Signal；
It should be noted that amplitude adjustment control of the embodiment of the present invention includes voltage control Amplifier and radio frequency amplifier, pass through
Voltage control Amplifier and radio frequency amplifier realize the amplitude adjustment of initial lateral rf excitation signal.
Impedance transformer is used for: being carried out impedance conversion process to the first radiofrequency signal of acquisition, is obtained the second radiofrequency signal；
The embodiment of the present invention realizes that imbalance-balance conversion and impedance convert by impedance transformer, reaches physical Design
It is required that voltage after, with difference form be respectively fed into excitation electrode on.
Loading unit is used for: the second radiofrequency signal of acquisition being loaded on transverse electrode, obtains and is used for line transversely excited
Radiofrequency signal.
Optionally, the device of that embodiment of the invention further includes curve determining unit, is used for:
From time domain, the feedforward curve that amplitude adjustment is carried out to the initial lateral rf excitation signal is obtained.
Optionally, the device of that embodiment of the invention further includes RF switch, is used for:
The excitation orientation for the initial lateral rf excitation signal that control generates.
It should be noted that the embodiment of the present invention is realized according to the determination of the excitation orientation of video pump signal to water
The control of flat or vertical direction excitation, the acquisition for the rf excitation signal that realization progress is drawn slowly and operating point measures.
Optionally, amplitude adjustment control of embodiment of the present invention device is also used to:
Obtain the Bunch current change information of educt beaming flow；
According to the Bunch current change information of acquisition, to carry out the initial lateral rf excitation signal of amplitude adjustment into
Line amplitude amendment.
The embodiment of the present invention realizes the feedforward and feedback complex control of signal amplitude by amplitude adjustment control device.Feedforward control root
Provide signal voltage (feedforward curve) in advance according to physical model, but physical model and physical presence error can not be completely counterbalanced by line
Fluctuation, need to introduce feedback control.It changes by force and setting value drift correction signal electricity according to the stream of actually measured educt beaming flow
Pressure, jointly stabilizing educt beaming flow.Amplitude adjustment control device can be by field programmable gate array (FPGA) and Digital Signal Processing (DSP)
Chip composition, is monitored gas ionization chamber measuring signal, completes physical model calculating, is realized by voltage control Amplifier
Feedforward and feedback complex control to signal amplitude.
Optionally, amplitude adjustment control of embodiment of the present invention device is according to the Bunch current change information of acquisition to the initial transverse direction
Rf excitation signal carries out amplitude correction
According to the Bunch current change information of acquisition, the initial transverse direction adjusted to amplitude is fed back by proportional integration PI
Rf excitation signal carries out amplitude correction.
Optionally, PI of embodiment of the present invention feedback includes determining amplitude correction information according to the following formula:
In formula, V (n) is initial lateral rf excitation signal amplitude, KpProportionality coefficient, K are controlled for PIiIt controls and integrates for PI
Coefficient, IsFor the strong setting value of stream of educt beaming flow, ImIt (n) is the strong measured value of stream of the n-th circle educt beaming flow.
The embodiment of the present invention, lateral rf excitation signal production method is flexible, generating means structure is simple, can be in time domain
With the rf excitation signal generated on frequency domain and line transverse movement parameter matches, a device can be passed through and meet slow draw
The rf excitation signal demand that two kinds of functions are measured with operating point, saves synchrotron space, reduces costs.
Present invention method is carried out to understand detailed description below by way of using example, is only used for using example old
The present invention is stated, is not intended to limit the scope of protection of the present invention.
Using example 1
Present invention application example 1 carries out example for generating the once lateral rf excitation signal for drawing slowly and says
It is bright:
When this application example draws energy 230 million-electron-volts (MeV), exciting signal frequency fk=3.9 megahertzs
(MHz), bandwidth deltaf f=36.4 kHz (kHz), using dual-frequency function signal；This application example swashs according to above-mentioned lateral radio frequency
The parameter for encouraging signal generates signal file, and signal file downloads to signal generator, generates initial lateral rf excitation signal.
Before this application example carries out amplitude adjustment to the initial lateral rf excitation signal of generation, amplitude adjustment control device is calculated
Feedforward curve, this application example use feedforward curve shown in Fig. 3.
During initial transverse direction rf excitation signal generates, the initial lateral rf excitation signal that signal generator generates,
After the impedance variations of amplifier amplification and impedance transformer, it is added on horizontal electrode and generates rf excitation signal, amplitude is pressed
According to the feedforward curvilinear motion of Fig. 3.
The line and physical model of the practical slow spill process of this application example have certain error, and amplitude adjustment control device passes through real-time
The stream Qiang Bianhua for monitoring educt beaming flow, corrects error using PI feedback mechanism in real time, closer to the strong of line transverse direction RF excited
Degree draws line uniformly.
Using example 2
Present invention application example 2 carries out example for generating the lateral rf excitation signal once measured for operating point
Illustrating, this application example and application example 1 can be implemented using identical device, this application example be illustrated below:
When this application example acceleration energy range 60-230MeV, exciting signal frequency 3.5MHz, bandwidth 5MHz, use is white
Noise signal；This application example generates signal file according to above-mentioned lateral rf excitation signal parameter, and signal file downloads to letter
Number generator generates initial lateral rf excitation signal.
This application example can switch rf excitation signal by RF switch and be added in level according to operating point measurement direction
On electrode or vertical electrode.
The rf excitation signal amplitude of operating point measurement is fixed value, such as V (n)=± 400V, in rf excitation signal
During generation, amplitude adjustment control device adjusts the gain of voltage control Amplifier, makes initial lateral rf excitation signal by radio frequency
After amplifier amplification and impedance transformation (balun impedance variations), rf excitation signal amplitude on the electrode is added to reach specified value.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can store in computer readable storage medium, as read-only memory,
Disk or CD etc..Optionally, one or more integrated circuits also can be used in all or part of the steps of above-described embodiment
It realizes.Correspondingly, each module/unit in above-described embodiment can take the form of hardware realization, such as pass through integrated electricity
Its corresponding function is realized on road, can also be realized in the form of software function module, such as is stored in by processor execution
Program/instruction in memory realizes its corresponding function.The present invention is not limited to the hardware and softwares of any particular form
In conjunction with.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (14)
1. a kind of method that signal generates characterized by comprising
Initial lateral rf excitation signal is generated according to beam parameters；
Amplitude adjustment is carried out to the initial lateral rf excitation signal of generation, obtains the first radiofrequency signal；
Impedance conversion process is carried out to the first radiofrequency signal of acquisition, obtains the second radiofrequency signal；
Second radiofrequency signal of acquisition is loaded on into transverse electrode, obtains the radiofrequency signal for being used for line transversely excited.
2. the method according to claim 1, wherein described generate initial lateral RF excited according to beam parameters
Signal includes:
From frequency domain, the parameter of the initial lateral rf excitation signal is determined according to the beam parameters；
According to the parameter of the determining initial lateral rf excitation signal, the initial lateral rf excitation signal is generated；
Wherein, the parameter of the initial lateral rf excitation signal includes following one or more kinds of parameters: signal type, frequency
Rate, bandwidth.
3. the method according to claim 1, wherein the initial lateral rf excitation signal of described pair of generation carries out
Before amplitude adjustment, the method also includes:
From time domain, the feedforward curve that amplitude adjustment is carried out to the initial lateral rf excitation signal is obtained.
4. described in any item methods according to claim 1~3, which is characterized in that before this method further include:
It is controlled by preset RF switch, controls the excitation orientation of the initial lateral rf excitation signal of generation.
5. described in any item methods according to claim 1~3, which is characterized in that the initial lateral radio frequency of described pair of generation swashs
When encouraging signal progress amplitude adjustment, the method also includes:
Obtain the Bunch current change information of educt beaming flow；
According to the Bunch current change information of acquisition, to carry out the initial lateral rf excitation signal of amplitude adjustment into
Line amplitude amendment.
6. according to the method described in claim 5, it is characterized in that, the Bunch current change information according to acquisition is to described
Initial transverse direction rf excitation signal carries out amplitude correction and includes:
According to the Bunch current change information of acquisition, by proportional integration PI feedback to the described initial of progress amplitude adjustment
Lateral rf excitation signal carries out amplitude correction.
7. according to the method described in claim 6, it is characterized in that, PI feedback includes determining that amplitude is repaired according to the following formula
Positive information:
In formula, V (n) is initial lateral rf excitation signal amplitude, KpProportionality coefficient, K are controlled for PIiIntegral coefficient is controlled for PI,
IsFor the strong setting value of stream of educt beaming flow, ImIt (n) is the strong measured value of stream of the n-th circle educt beaming flow.
8. the device that a kind of signal generates characterized by comprising signal generator, amplitude adjustment control device, impedance transformer and add
Carrier unit；Wherein,
Signal generator is used for: generating initial lateral rf excitation signal according to beam parameters；
Amplitude adjustment control device is used for: being carried out amplitude adjustment to the initial lateral rf excitation signal of generation, is obtained the first radiofrequency signal；
Impedance transformer is used for: being carried out impedance conversion process to the first radiofrequency signal of acquisition, is obtained the second radiofrequency signal；
Loading unit is used for: the second radiofrequency signal of acquisition being loaded on transverse electrode, obtains penetrating for line transversely excited
Frequency signal.
9. device according to claim 8, which is characterized in that the signal generator is specifically used for:
From frequency domain, the parameter of the initial lateral rf excitation signal is determined according to the beam parameters；
According to the parameter of the determining initial lateral rf excitation signal, the initial lateral rf excitation signal is generated；
Wherein, the parameter of the initial lateral rf excitation signal includes following one or more kinds of parameters: signal type, frequency
Rate, bandwidth.
10. device according to claim 8, which is characterized in that described device further includes curve determining unit, is used for:
From time domain, the feedforward curve that amplitude adjustment is carried out to the initial lateral rf excitation signal is obtained.
11. according to the described in any item devices of claim 8~10, which is characterized in that described device further includes RF switch, is used
In:
The excitation orientation for the initial lateral rf excitation signal that control generates.
12. according to the described in any item devices of claim 8~10, which is characterized in that the amplitude adjustment control device is also used to:
Obtain the Bunch current change information of educt beaming flow；
According to the Bunch current change information of acquisition, to carry out the initial lateral rf excitation signal of amplitude adjustment into
Line amplitude amendment.
13. device according to claim 12, which is characterized in that the amplitude adjustment control device becomes according to the Bunch current of acquisition
Change information includes: to the initial lateral rf excitation signal progress amplitude correction
According to the Bunch current change information of acquisition, the initial transverse direction adjusted to amplitude is fed back by proportional integration PI
Rf excitation signal carries out amplitude correction.
14. according to the method for claim 13, which is characterized in that the PI feedback includes determining amplitude according to the following formula
Update information:
In formula, V (n) is initial lateral rf excitation signal amplitude, KpProportionality coefficient, K are controlled for PIiIntegral coefficient is controlled for PI,
IsFor the strong setting value of stream of educt beaming flow, ImIt (n) is the strong measured value of stream of the n-th circle educt beaming flow.
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| CN116223909A (en) * | 2022-11-18 | 2023-06-06 | 南方电网数字电网研究院有限公司 | Reconstruction method, reconstruction device, reconstruction server and storage medium for superimposed signals |
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