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Injection transient study using a two-frequency bunch length measurement system at the SSRF |
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| Authors: | Li-Wu Duan Yong-Bin Leng Ren-Xian Yuan Zhi-Chu Chen |
| Affiliation: | 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;2. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Synchrotron Radiation Facility, Chinese Academy of Sciences, Zhangjiang Campus, Shanghai 201204, China |
| Abstract: | The bunch length can be measured by comparison of two frequency components of a synchrotron beam signal.An online bunch length measurement system has been implemented based on this method.Working frequencies of 3 GHz and 500 MHz were selected,and the raw data was acquired by digital oscilloscope and was resampled and analyzed using the MATLAB software platform at bunch-by-bunch rate.The constructed system was employed to study the bunch length synchronous oscillation phenomenon during injection.The beam experiments demonstrated a time resolution of less than 0.5 ps. |
| Keywords: | Bunch length measurement Two-frequency method Bunch-by-bunch Injection |
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