高能同步辐射光源X射线位置探测器前端采集电路的研制

梁重阳; 何俊; 随艳锋; 徐江涛; 张鸿; 高国栋; 许亮; 杜垚垚; 魏书军; 周代全; 李宜林; 岳军会; 曹建社

doi:10.11884/HPLPB202537.240430

高能同步辐射光源X射线位置探测器前端采集电路的研制

doi: 10.11884/HPLPB202537.240430

梁重阳^{1, 2,},
何俊^1, ,,
随艳锋^{1, 2},
徐江涛³,
张鸿¹,
高国栋¹,
许亮^{1, 2},
杜垚垚¹,
魏书军¹,
周代全^{1, 2},
李宜林^{1, 2},
岳军会¹,
曹建社^{1, 2}

1.
中国科学院高能物理研究所，北京 100049
2.
中国科学院大学，北京 100049
3.
成都理工大学，成都 610059

基金项目: 国家自然科学基金面上项目(1247052027)

详细信息

作者简介:
梁重阳，liangcy@ihep.ac.cn

通讯作者:
何　俊，hejun@ihep.ac.cn。

中图分类号: TL506
计量
- 文章访问数: 59
- HTML全文浏览量: 23
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2024-12-19
- 修回日期: 2025-06-16
- 录用日期: 2025-06-16
- 网络出版日期: 2025-07-01
- 刊出日期: 2025-07-26

Research on X-ray beam position monitor front-end acquisition circuit of high energy photo source

Liang Chongyang^{1, 2
,},
He Jun^{1
, ,},
Sui Yanfeng^{1, 2},
Xu Jiangtao³,
Zhang Hong¹,
Gao Guodong¹,
Xu Liang^{1, 2},
Du Yaoyao¹,
Wei Shujun¹,
Zhou Daiquan^{1, 2},
Li Yilin^{1, 2},
Yue Junhui¹,
Cao jianshe^{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
3.
Chengdu University of Technology, Chengdu 610059, China

摘要

摘要: X射线位置探测器（XBPM）可用于光束线同步辐射光位置的测量，其中XBPM前端采集电路主要用于模拟信号采集与处理。为满足高能同步辐射光源（HEPS）光束线前端区对精确测量同步光位置信息的需求，研制了一款XBPM电子学模拟前端板卡（AFE），设计并实现了XBPM信号的电流电压转换、量程切换、增益控制和ADC采样等功能，并搭建实验室测试平台对XBPM-AFE进行了性能测试。测试结果表明，I/V转换模块电流输入范围为10 nA至1 mA，输入电流在三个数量级变化时，各量程段跨阻增益线性误差均保持在较低水准；四个通道之间测量结果的平均相对标准偏差小于0.46%；模数转换模块在慢采集和快采集两种模式下，分别可以准确地反映变化速度在0.1 s和1 ms以上的信号输入情况。
- X射线位置探测器 /
- 模拟信号处理 /
- 电流电压转换 /
- 数据采集 /
- 高能同步辐射光源
Abstract: The X-ray beam position monitor (XBPM) can be used to measure the position of beamline synchrotron radiation light. The front-end acquisition circuit of XBPM is mainly used for analog signal acquisition and processing. To meet the demand for precise measurement of synchrotron light position information in the beamline front-end area of high energy photo source (HEPS), an XBPM electronic analog front end (AFE) board card has been developed in this paper. The functions such as current-voltage conversion, range switching, gain control and ADC sampling of XBPM signals were designed and implemented, and a laboratory test platform was built to conduct performance tests on XBPM-AFE. The test results show that the current input range of the I/V conversion module is from 10 nA to 1 mA. When the input current varies by three orders of magnitude, the linear error of the transimmer gain in each range segment remains at a relatively low level. The average relative standard deviation of the measurement results among the four channels is less than 0.46%. The analog-to-digital conversion module can accurately reflect the signal input conditions with changing speeds of over 0.1 s and 1 ms respectively in both slow acquisition and fast acquisition modes.
- X-ray beam position monitor /
- analog signal acquisition /
- current-voltage conversion /
- data acquisition /
- High Energy Photon Source

HTML全文

图 1 XBPM系统结构

Figure 1. XBPM system structure

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图 2 XBPM电子学系统架构

Figure 2. XBPM electronics system architecture

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图 3 XBPM-AFE电路结构图

Figure 3. XBPM-AFE circuit structure diagram

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图 4 Spice仿真结果

Figure 4. Spice simulation results

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图 5 XBPM-AFE性能测试实验平台示意图

Figure 5. XBPM-AFE performance test platform schematic

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图 6 ADC快采集测试（输入信号频率1 kHz）

Figure 6. ADC fast acquisition test (input 1 kHz signal)

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图 7 ADC慢采集测试（输入信号频率10 Hz）

Figure 7. ADC slow acquisition test (input 10 Hz signal)

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图 8 XBPM电子学测试实物图

Figure 8. XBPM electronics test diagram

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图 9 CSS数据采集结果

Figure 9. CSS data collection results

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表 1 I/V转换模块测试结果

Table 1. I/V converter test results

gain range	input current/μA	output voltage/mV
gain range	input current/μA	channel A	channel B	channel C	channel D
1k	1000	1000	1001	1000	1001
	500	499	500	500	500
	200	200	200	200	201
	100	100	100	100	100
	50	50	50	50	50
	20	20	20	20	21
	10	10	10	10	10
10k	100	1000	1000	1000	1000
	50	500	500	500	501
	20	200	201	200	200
	10	101	100	100	100
	5	50	50	49	50
	2	20	21	20	20
	1	10	10	10	10
100k	10	999	1000	1001	1000
	5	500	500	500	501
	2	200	199	200	200
	1	100	100	100	100
	0.5	49	50	50	50
	0.2	20	20	20	20
	0.1	10	10	10	10
1M	1	1000	1000	1000	1000
	0.5	500	500	500	501
	0.2	200	200	200	200
	0.1	100	101	100	100
	0.05	50	50	49	50
	0.02	19	20	20	20
	0.01	10	10	10	10

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表 2 I/V转换模块隔离度测试

Table 2. I/V conversion isolation test

input (channel A)/dBm	output/dBm
input (channel A)/dBm	channel A	channel B	channel C	channel D
−10	−19.21	−95.68	−99.33	−100.47

下载: 导出CSV

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