Beam test results of high Q CBPM prototype for SXFEL

In pursuit of high-precision beam position measurements at micrometers or submicrometers for the Shanghai soft X-ray free-electron laser (SXFEL) facility which is under construction in the vicinity of the Shanghai Synchrotron Radiation Facility, a high Q cavity beam position monitor (CBPM) with a re...

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Bibliographic Details
Published in:Nuclear science and techniques 2017-04, Vol.28 (4), p.51-58, Article 51
Main Authors: Chen, Jian, Leng, Yong-Bin, Yu, Lu-Yang, Lai, Long-Wei, Yuan, Ren-Xian
Format: Article
Language:English
Subjects:
CBPM
SXFEL
Position
end
DBPM
Energy
front
Hadrons
Heavy Ions
High
Nuclear Energy
Nuclear Physics
resolution
RF
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Summary:In pursuit of high-precision beam position measurements at micrometers or submicrometers for the Shanghai soft X-ray free-electron laser (SXFEL) facility which is under construction in the vicinity of the Shanghai Synchrotron Radiation Facility, a high Q cavity beam position monitor (CBPM) with a resonant frequency of 4.7 GHz is developed by the Shanghai Institute of Applied Physics, and the relevant BPM electronics with a dedicated RF front end, and a digital BPM, are completed. The cavity design, cold test, system architecture, and first beam test are performed at the Shanghai deep ultraviolet free-electron laser (Zhao et al. in Nucl Instrum Meth A 528(1-2):591-594, 2004. doi:10.1016/j.nima.2004.04.108) facility. Results of the beam experiment show that the performance of the CBPM is consistent with basic expectations, and the beam position resolution can fulfill the requirements for the SXFEL project if the beam conditions are optimized.
ISSN:1001-8042
2210-3147
DOI:10.1007/s41365-017-0195-x