A beam position measurement system of fully digital signal processing at SSRF

YAN Han; ZHAO Lei; LIU Shubin; CHEN Kat; WU Weihao; AN Qi; LENG Yongbin; YI Xing; YAN Yingbing; LAI Longwei

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A beam position measurement system of fully digital signal processing at SSRF

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摘要

This fully digital beam position measurement instrument is designed for beam position monitoring and machine research in Shanghai Synchrotron Radiation Facility. The signals received from four position-sensitive detectors are narrow pulses with a repetition rate up to 499.654 MHz and a pulse width of around 100 ps, and their dynamic range could vary over more than 40 dB in machine research. By the employment of the under-sampling technique based on high-speed high-resolution A/D conversion, all the processing procedure is performed fully by the digital signal processing algorithms integrated in one single Field Programmable Gate Array. This system functions well in the laboratory and commissioning tests, demonstrating a position resolution (at the turn by turn rate of 694 kHz) better than 7 μm over the input amplitude range of -40 dBm to 10 dBm which is well beyond the requirement.

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来源
《核技术：英文版》 |2012年第2期|75-82|共8页
作者
YAN Han; ZHAO Lei; LIU Shubin; CHEN Kat; WU Weihao; AN Qi; LENG Yongbin; YI Xing; YAN Yingbing; LAI Longwei;
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作者单位

State Key Laboratory of Particle Detection ＆ Electronics;

University of Science and technology of China;

Hefei;

230026;

China;

Anhui Key Laboratory of Physical Electronics;

Department of Modern Physics;

University of Science and technology of China;

Hefei;

230026;

China;

Shanghai Institute of Applied Physics;

Chinese Academy of Sciences;

Shanghai;

201800;

China;

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原文格式 PDF
正文语种 chi
中图分类激光器;辐射源;
关键词
上海同步辐射装置; 位置测量系统; 信号处理技术; 光束; 数字信号处理算法; 现场可编程门阵列; 位置敏感探测器; 光源;

A beam position measurement system of fully digital signal processing at SSRF

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