Monitoring the charge bunch-by-bunch for the SSRF storage ring： Development and application

Bunch charge uniformity controlling is very important for top-up operation of the storage ring. In order to monitor filling pattern and measure the bunch charge precisely, a PXI waveform digitizer-based data acquisition system has been developed to retrieve bunch charge information from BPM pickup s...

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Bibliographic Details
Published in:Nuclear science and techniques 2010-08, Vol.21 (4), p.193-196
Main Author: LENG Yongbin YAN Yingbin YU Luyang YUAN Renxian CHEN Zhichu ZHOU Weimin
Format: Article
Language:English
Subjects:
储存环
波形示波器
Online Access:Get full text
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Summary:Bunch charge uniformity controlling is very important for top-up operation of the storage ring. In order to monitor filling pattern and measure the bunch charge precisely, a PXI waveform digitizer-based data acquisition system has been developed to retrieve bunch charge information from BPM pickup signals. An effective sampling rate is extended to 400 GHz by waveform rebuilding technology, which overlays multi-turn data into single turn with real time sampling rate of 8 GHz. An on-line evaluation indicates that resolution and linearity of the charge measurement are better than 0.5% at input range of 0.5-12 nC.
ISSN:1001-8042
2210-3147