Study and implementation of automatic gain calibration method for 4-channel digital beam position monitor

Gao Guodong; Cao Jianshe; Liu Zhi; Du Yaoyao; Ye Qiang; Ma Huizhou; Sui Yanfeng; Yue Junhui; He Jun; Xu Taoguang; Yang Jing; Zhang Xing’er; Tang Xuhui; Wei Shujun

doi:10.11884/HPLPB202133.210202

Volume 33 Issue 9

Sep. 2021

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2021 > 33(9): 094006

Gao Guodong, Cao Jianshe, Liu Zhi, et al. Study and implementation of automatic gain calibration method for 4-channel digital beam position monitor[J]. High Power Laser and Particle Beams, 2021, 33: 094006. doi: 10.11884/HPLPB202133.210202

Citation:

Gao Guodong, Cao Jianshe, Liu Zhi, et al. Study and implementation of automatic gain calibration method for 4-channel digital beam position monitor[J]. High Power Laser and Particle Beams, 2021, 33: 094006. doi: 10.11884/HPLPB202133.210202

Citation:

PDF( 1095 KB)

Study and implementation of automatic gain calibration method for 4-channel digital beam position monitor

doi: 10.11884/HPLPB202133.210202

Gao Guodong^{1, 2
,},
Cao Jianshe^{1, 2
,
,},
Liu Zhi¹,
Du Yaoyao¹,
Ye Qiang¹,
Ma Huizhou¹,
Sui Yanfeng^{1, 2},
Yue Junhui¹,
He Jun¹,
Xu Taoguang¹,
Yang Jing^{1, 2},
Zhang Xing’er^{1, 2},
Tang Xuhui^{1, 2},
Wei Shujun^{1, 2}

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2021-05-26
Rev Recd Date: 2021-07-21

Available Online: 2021-08-12

Publish Date: 2021-09-15

Abstract

Abstract

The accuracy of beam position measurement is affected by the gain inconsistency of the four channels of the digital BPM. Based on the existing hardware and the requirement of beam position monitor (BPM) measurement accuracy, a design for automatic calibration of digital BPM sample data gain is implemented by Verilog language in the self-made electronics. Firstly, the system design of automatic gain calibration module is introduced. Secondly, the realization method of the module is described in detail, and the ADC data automatic gain calibration test platform is designed and built to verify the function of the automatic gain calibration module. Finally, the application of this design in BPM channel calibration is introduced. Test results show that this method achieves 4-channel gain consistency and makes the data amplitude after ADC sampling equal. This method effectively solves the measurement bias caused by channel gain inconsistency and the difficulty of ADC data amplitude calibration in engineering application. It will play an important role in the automatic channel calibration of BPM system.
- digital beam position monitor,
- ADC sampling,
- FPGA,
- automatic gain calibration

FullText(HTML)

References(9)

References

[1]	张醒儿, 张琪, 曹建社, 等. 高能同步辐射光源逐束团束流位置测量电子学研制[J]. 原子能科学技术, 2020, 54(9):1709-1714. (Zhang Xing’er, Zhang Qi, Cao JianShe, et al. Development of beam position measurement electronics for high energy synchrotron radiation source[J]. Atomic Energy Science and Technology, 2020, 54(9): 1709-1714 doi: 10.7538/yzk.2019.youxian.0708
[2]	中国科学院高能物理研究所. HEPS-TF束测系统初步设计报告[R]. 北京: 中国科学院高能物理研究所, 2015. Institute of High Energy Physics, Chinese Academy of Sciences. Preliminary design report of HEPS-TF beam measurement system[R]. Beijing: Institute of High Energy Physics, Chinese Academy of Sciences, 2015
[3]	随艳峰, 杜垚垚, 叶强, 等. 基于BEPCⅡ数字束流位置测量系统电子学系统的设计与实现[J]. 原子能科学技术, 2020, 54(1):172-178. (Sui Yanfeng, Du Yaoyao, Ye Qiang, et al. Design and implementation of electronic system based on BEPC Ⅱ digital beam position measurement system[J]. Atomic Energy Science and Technology, 2020, 54(1): 172-178 doi: 10.7538/yzk.2019.youxian.0044
[4]	张醒儿, 杜垚垚, 张琪, 等. 基于BEPCⅡ数据的数字束流位置测量器算法离线分析[J]. 强激光与粒子束, 2018, 30:105103. (Zhang Xing’er, Du Yaoyao, Zhang Qi, et al. Offline analysis of digital beam position measurement algorithm based on BEPCII data[J]. High Power Laser and Particle Beams, 2018, 30: 105103 doi: 10.11884/HPLPB201830.170523
[5]	赖龙伟, 冷用斌, 阎映炳, 等. 数字BPM信号处理器的研制进展[J]. 原子能科学技术, 2015, 49(S2):607-610. (Lai Longwei, Leng Yongbin, Yan Yingbing, et al. Development of digital BPM signal processor[J]. Atomic Energy Science and Technology, 2015, 49(S2): 607-610
[6]	易星. 加速器束流诊断中数字BPM系统研究[D]. 合肥: 中国科学技术大学, 2012. Yi Xing. Research on digital BPM system in accelerator beam diagnosis. Hefei: University of Science and Technology of China, 2012
[7]	叶强, 马宇飞, 随艳峰, 等. 数字BPM数字采集电子学研制[C]//第十九届全国核电子学与核探测技术学术年会论文集. 2018. Ye Qiang, Ma Yufei, Sui Yanfeng, et al. Development of digital BPM digital acquisition electronics[C]//Proceedings of the 19th National Annual Conference on Nuclear Electronics and Nuclear Detection Technology. 2018
[8]	马宇飞, 曹建社, 杜垚垚, 等. 数字BPM的通道系数获取及幅度自动校准的方法和系统: CN108897034B[P]. 2019-10-25. Ma Yufei, Cao Jianshe, Du Yaoyao, et al. Method and system of channel coefficient acquisition and gain automatic calibration for digital BPM: CN108897034B. 2019-10-25
[9]	马宇飞, 周嘉申, 曹建社, 等. 基于BEPCⅡ的数字束流位置探测器信号处理算法的FPGA实现[J]. 原子能科学技术, 2018, 52(10):1874-1878. (Ma Yufei, Zhou Jiashen, Cao Jianshe, et al. FPGA implementation of signal processing algorithm for digital beam position detector based on BEPCII[J]. Atomic Energy Science and Technology, 2018, 52(10): 1874-1878 doi: 10.7538/yzk.2018.youxian.0093