阅读说明：本技术 一种紧凑型加速器束流相位及位置测量系统及方法 (Compact accelerator beam phase and position measuring system and method ) 是由 彭卫 朱文松 金微微 梅理 吴兵 王冰 于 2020-05-27 设计创作，主要内容包括：本发明涉及一种紧凑型加速器束流相位及位置测量系统及方法,包括用于接收信号的模拟信号调理模块、综合处理模块、电源模块,其中,所述模拟信号调理模块的输出端与综合处理模块的输入端相互电性连接；所述电源模块的输出端还分别与模拟信号调理模块、综合处理模块电性连接进行供电；所述综合处理模块包括ADC、FPGA SoC模块、时钟管理模块。本发明提出的加速器束流相位及位置测量系统是紧凑型的,集成了综合处理模块包括ADC、FPGA SoC模块、时钟管理模块等,从而具有更高集成度和更小体积的特点。(The invention relates to a compact accelerator beam phase and position measuring system and method, comprising an analog signal conditioning module for receiving signals, an integrated processing module and a power supply module, wherein the output end of the analog signal conditioning module is electrically connected with the input end of the integrated processing module; the output end of the power supply module is also electrically connected with the analog signal conditioning module and the comprehensive processing module respectively for supplying power; the comprehensive processing module comprises an ADC, an FPGA SoC module and a clock management module. The accelerator beam phase and position measuring system provided by the invention is compact, and integrates an integrated processing module comprising an ADC (analog to digital converter), an FPGA (field programmable gate array) SoC (system on chip) module, a clock management module and the like, so that the accelerator beam phase and position measuring system has the characteristics of higher integration level and smaller volume.)

1. The compact accelerator beam phase and position measuring system is characterized by comprising an analog signal conditioning module (1) for receiving signals, an integrated processing module (2) and a power supply module (3), wherein the output end of the analog signal conditioning module is electrically connected with the input end of the integrated processing module (2); the output end of the power supply module (3) is also electrically connected with the analog signal conditioning module (1) and the comprehensive processing module (2) respectively for supplying power;

the comprehensive processing module (2) comprises an ADC, an FPGA SoC module and a clock management module; the input end of the ADC is electrically connected with the analog signal conditioning module (1), the ADC is electrically connected with the FPGA SoC module, the output end of the FPGA SoC module is further electrically connected with the user interaction software, the FPGA SoC module is electrically connected with the clock management module, and the output end of the clock management module is further electrically connected with the ADC.

2. Compact accelerator beam phase and position measurement system according to claim 1, characterized in that the analog signal conditioning module (1) receives, processes and transmits 1, 2, 4, 8 or 16 analog signals simultaneously.

3. The compact accelerator beam phase and position measurement system according to claim 1, wherein the analog signal conditioning module (1) comprises a limiter, a first low noise amplifier, a numerical control attenuator, a band-pass filter, a second low noise amplifier and a low-pass filter which are sequentially in communication connection, the signal limiter is connected with external equipment for signal input, and the low-pass filter is connected with the external equipment for signal output.

4. The compact accelerator beam phase and position measurement system according to claim 1, wherein the power module (3) comprises a DC-DC voltage converter and an L DO power converter connected in series, the input terminal of the clock management module is further electrically connected to the L DO power converter, the input terminal of the L DO power converter is further electrically connected to the electrical output terminal of the DC-DC voltage converter, and the DC-DC voltage converter is further connected to an external device.

5. The compact accelerator beam phase and position measurement system according to claim 1, wherein the ADC is one-chip multi-channel, or multi-chip single-channel, or multi-chip multi-channel, and the sampling rate of the ADC is not lower than 80Msps, -3dB analog bandwidth is not lower than 200MHz, the ADC having SPI control interface.

6. The system for measuring the beam phase and position of the compact accelerator according to any one of claims 1 to 5, wherein the FPGA SoC module comprises an FPGA module and a data processing module which are sequentially connected in series, and the data processing module is an ARM processor, or an MCU, or a RISC-V, or a CPU, or a DSP.

7. The compact accelerator beam phase and position measurement system according to any one of claims 1 to 5, wherein the user interaction software comprises a DMA data transmission module, a phase position processing module, an EPICS control module, a parameter control module, and a memory module, wherein the DMA data transmission module, the phase position processing module, and the EPICS control module are sequentially connected, the EPICS control module is further connected with a control parameter module, the control parameter module is connected with the memory, and the control parameter module is further connected with the phase position processing module;

the DMA data transmission module receives digital signals and phase and amplitude data sent by data processing; then, the phase and position calculation and correction compensation algorithm is sent to carry out calculation;

the phase position processing module is used for realizing phase and amplitude/position calculation on the data processing module;

the phase position processing module is used for calculating and processing, and sending the calculated phase and position results to an EPICS control program for phase and position variable release;

the EPICS control module is used for receiving user control instructions and parameters and transmitting the user control instructions and the parameters to the parameter control module; the parameter control module transmits the phase and position calculation coefficients to the phase position processing module,

the parameter control module is used for transmitting ADC control parameters to an SPI controller of the ADC, transmitting clock management parameters to an SPI controller of clock management, and transmitting analog signal conditioning gain control parameters to an SPI controller of the analog signal conditioning module (1); the parameter control module is also used for accessing the local memory to store and read system parameters and coefficients;

the memory module is used for storing system parameters and coefficients.

8. The compact accelerator beam phase and position measurement system according to claim 1, wherein the analog signal conditioning module is miniaturized and on-chip and integrated with ADC as analog sampling front-end or integrated with package as analog sampling SIP.

9. The system for measuring the beam phase and position of the compact accelerator according to claim 1, wherein the analog signal conditioning module is miniaturized and on-chip, and integrated with an ADC and an FPGA SoC module into a radio frequency digital processor SoC or packaged into a radio frequency digital processor SIP.

10. A method for measuring the beam phase and position of a compact accelerator, which is characterized by using the system for measuring the beam phase and position of the compact accelerator as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of beam diagnosis and detection electronics of particle accelerators, in particular to a compact accelerator beam phase and position measuring system and method.

Background

The spallation neutron source, the synchrotron radiation light source, the free electron laser, the electron collider and other large scientific devices are scientific research platforms based on particle accelerators. Different accelerators have different energy, brightness, beam loss and other characteristics, and beam phase and position information of the accelerators need to be measured in real time to obtain the operating state of the scientific device. Therefore, the beam phase and position measurement system is an indispensable component of accelerators at home and abroad.

The basic method for measuring the phase and position of the accelerator beam is to use a detector to induce a beam-related electromagnetic field. The phase and amplitude of the beam induction signal are modulated, the carrier wave is the pulse frequency or the high-frequency radio frequency of the beam, and the phase and position information of the beam can be obtained after demodulating and processing the corresponding signal. At present, relevant research is carried out aiming at a particle accelerator beam phase and position measuring system in China, the problem of low integration level mainly exists, and the main achievements aiming at the particle accelerator beam phase and position measuring system in China are as follows:

the invention of the patent of the recent physical research institute of the Chinese academy of sciences for the diagnosis of high-energy heavy ion beam current is position sensitivity detector, publication number: CN104090292B discloses a position sensitivity detector for diagnosis of heavy ion beam current with higher energy, which is essentially a sensor capable of sensing a beam current status signal; the Device is mainly suitable for sensing and outputting signals related to the beam current of the heavy ion accelerator, the application scene is limited, and the function is similar to that of a lens and a CCD (Charge-coupled Device) in a camera;

dongguan neutron science center utility model patent beam position detector for accelerator, publication number: CN208351009U "provides a position measurement probe; the method is mainly suitable for sensing and outputting signals related to beam current, the application scene is limited, and the function is similar to that of a lens and a CCD in a camera;

the invention relates to a self-triggering method for detecting beam abnormality of a particle accelerator, which is invented by Shanghai applied physics research institute of Chinese academy of sciences, and the patent comprises the following steps: CN104166152 "provides a self-triggering method for detecting beam anomaly of a particle accelerator, which can detect known events and transient random anomaly events without external trigger signals, and provide corresponding trigger signals, and can be used to improve the efficiency and intelligence level of data acquisition; the beam abnormality can be detected, and corresponding actions can be started, so that the method has the advantages that an external trigger signal is not needed, and the defect that the integration level is not high;

the invention relates to a method for measuring beam position of a particle accelerator, which has the following patent: CN103809198A realizes a beam position measuring method capable of collecting and analyzing N electrode output signals of N strip beam position probes; the N probe signals can be simultaneously measured, so that the noise in each electrode signal is eliminated, the measurement precision is improved, and the defect is low integration level;

the invention relates to a carrier suppression radio frequency front end and method, a beam position measuring system and method, and the patent publication number is as follows: CN104506293A "proposes a method for detecting a target signal by adjusting the phases and amplitudes of output signals of two channels on a diagonal of a beam position probe to be consistent to suppress a carrier signal; the patent scheme adopts a method of inhibiting carrier signals to obtain signals, but the phase and amplitude regulation precision cannot be ensured;

the Chinese academy of sciences for the science of compost substance science inventive patent of accelerator beam position diagnosis system and method based on eight Diagram limit probe distribution, the publication number: CN105467423B proposes an accelerator beam position diagnosis system based on eight-diagram-limit probe distribution; 8 electrodes are used for obtaining 8 paths of signals, the measurement precision is improved by improving the number of the signals, and the method for measuring the beam position of the particle accelerator is disclosed in the patent number: CN103809198A same; however, increasing the number of signals leads to increased costs;

the invention of Chinese atomic energy institute patent "neutron beam position detector, publication number: CN102279409A proposes an apparatus for converting neutron image into image flicker of visible light and detecting the position of neutron beam with a CCD camera; however, the CCD camera is used for measurement, so that the problem of small dynamic range exists, and the applicable scene is limited;

"Electron accelerator beam position monitoring system, publication number: CN207051496U provides an electron beam current position monitoring device based on a temperature device; the above patent schemes mainly focus on the beam detector or signal acquisition, and are not suitable for measuring the beam phase and position of the accelerator;

the invention discloses a beam position and phase measurement system and method based on full digitalization technology, which comprises the following steps: 104181577B, the patent scheme is mainly realized based on a full digitalization idea, and the problem of integration level is not considered, and the low integration level can result in that the application prospect cannot be good.

Disclosure of Invention

The invention aims to provide a system and a method for measuring beam phase and position of a compact accelerator, so as to solve the problem of low integration level.

The invention solves the technical problems through the following technical means:

a compact accelerator beam phase and position measuring system comprises an analog signal conditioning module for receiving signals, a comprehensive processing module and a power supply module, wherein the output end of the analog signal conditioning module is electrically connected with the input end of the comprehensive processing module; the output end of the power supply module is also electrically connected with the analog signal conditioning module and the comprehensive processing module respectively for supplying power;

the comprehensive processing module comprises an ADC (analog to digital converter), an FPGA (field programmable gate array) SoC module and a clock management module; the input end of the ADC is electrically connected with the analog signal conditioning module, the ADC is electrically connected with the FPGA SoC module, the output end of the FPGA SoC module is further electrically connected with the user interaction software, the FPGA SoC module is electrically connected with the clock management module, and the output end of the clock management module is further electrically connected with the ADC.

The accelerator beam phase and position measuring system is compact, and integrates a comprehensive processing module including an ADC (analog to digital converter), an FPGASoC (field programmable gate array) module, a clock management module and the like, so that the accelerator beam phase and position measuring system has the characteristics of higher integration level and smaller volume.

As a further scheme of the invention: the analog signal conditioning module receives, processes and transmits 1-path, 2-path, 4-path, 8-path or 16-path analog signals at the same time.

As a further scheme of the invention: the analog signal conditioning module is composed of an amplitude limiter, a first low-noise amplifier, a numerical control attenuator, a band-pass filter, a second low-noise amplifier and a low-pass filter which are sequentially in communication connection, the signal amplitude limiter is connected with external equipment and used for signal input, and the low-pass filter is connected with the external equipment and used for signal output.

As a further scheme of the invention: the ADC is one-chip multichannel, or multi-chip single-channel, or multi-chip multichannel, the sampling rate of the ADC is not lower than 80Msps, the-3 dB analog bandwidth is not lower than 200MHz, and the ADC is provided with an SPI control interface.

As a further scheme of the invention: the FPGA SoC module comprises an FPGA module and a data processing module which are sequentially connected in series, wherein the data processing module can be an ARM processor, an MCU, a RISC-V, a CPU or a DSP.

As a further scheme of the invention: the user interaction software comprises a DMA data transmission module, a phase position processing module, an EPICS control module, a parameter control module and a memory module, wherein the DMA data transmission module, the phase position processing module and the EPICS control module are sequentially connected, the EPICS control module is also connected with a control parameter module, the control parameter module is mutually connected with the memory, and the control parameter module is also connected with the phase position processing module;

the DMA data transmission module receives digital signals and phase and amplitude data sent by data processing; then, the phase and position calculation and correction compensation algorithm is sent to carry out calculation;

the phase position processing module is used for realizing phase and amplitude/position calculation on the data processing module;

the phase position processing module is used for calculating and processing, and sending the calculated phase and position results to an EPICS control program for phase and position variable release;

the EPICS control module is used for receiving user control instructions and parameters and transmitting the user control instructions and the parameters to the parameter control module; the parameter control module transmits the phase and position calculation coefficients to the phase position processing module,

the parameter control module is used for transmitting ADC control parameters to an SPI controller of the ADC, transmitting clock management parameters to an SPI controller of the clock management module and transmitting analog signal conditioning gain control parameters to an SPI controller of the analog signal conditioning module; the parameter control module is also used for accessing the local memory to store and read system parameters and coefficients;

the memory module is used for storing system parameters and coefficients.

According to a further scheme of the invention, the power supply module comprises a DC-DC voltage converter and an L DO power converter which are sequentially connected in series, the input end of the clock management module is also electrically connected with the L DO power converter, the input end of the L DO power converter is also electrically connected with the electrical output end of the DC-DC voltage converter, and the DC-DC voltage converter is also connected with external equipment.

As a further scheme of the invention: the analog signal conditioning module is miniaturized and chipized, and is integrated with the ADC into an analog sampling front end in a chipized mode or integrated into an analog sampling SIP in a packaged mode.

As a further scheme of the invention: the analog signal conditioning module is miniaturized and chip-processed, and is integrated with the ADC and FPGASoC module into a radio frequency digital processor SoC or packaged and integrated into a radio frequency digital processor SIP.

A method for measuring the beam phase and position of a compact accelerator uses the system for measuring the beam phase and position of the compact accelerator.

The invention has the advantages that:

1. the accelerator beam phase and position measuring system provided by the invention is compact, and integrates the integrated processing module including the ADC, the FPGA SoC module, the clock management module and the like, so that the system has the characteristics of higher integration level and smaller volume, solves the problem of lower integration level, and has better application prospect.

2. The invention integrates the FPGA and the heterogeneous processor SoC/SIP of the embedded processor to carry out digital processing.

3. The invention runs L inux embedded operating system and realizes user interaction software on the heterogeneous processor with FPGA.

4. The invention transplants and runs the EPICS of the large-scale experimental physics and industrial control system on the heterogeneous processor with the FPGA.

5. The invention firstly provides a thought of forming a single analog sampling front end or an analog sampling SIP by integrating an analog signal conditioning circuit and an ADC.

6. The invention firstly provides the idea of forming a single radio frequency digital processor SoC or a radio frequency digital processor SIP by integrating an analog signal conditioning circuit, an ADC and an FPGA SoC.

7. The invention is an indispensable measuring tool for diagnosing and measuring the beam current in the process of constructing and operating the proton, electron, ion and other particle accelerators, can provide an experimental verification means for the physical theory of scientific research personnel, and has strong social and economic values.

Drawings

Fig. 1 is a schematic diagram of a compact accelerator beam phase and position measurement system of the present invention.

FIG. 2 is a schematic diagram of the integrated processing module of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic diagram of a digital signal and data processing algorithm, user interaction software implementation architecture 1 of the present invention.

Fig. 5 is a schematic diagram of the digital signal and data processing algorithm, user interaction software implementation architecture 2 of the present invention.

Fig. 6 is a schematic diagram of the digital signal and data processing algorithm, user interaction software implementation architecture 3 of the present invention.

FIG. 7 is a schematic diagram of the structure of the user interaction software provided by the present invention.

Fig. 8 is a schematic structural diagram of an analog signal conditioning module provided in the present invention.

Fig. 9 is a schematic structural diagram of an improved compact accelerator beam phase and position measurement system 1 provided by the present invention.

Fig. 10 is a schematic structural diagram of an improved compact accelerator beam phase and position measurement system 2 provided by the present invention.

In the figure, 1 is an analog signal conditioning module, 2 is a comprehensive processing module, and 3 is a power supply module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.