Author: Chen, J.
Paper Title Page
MOPMB049 Beam Experiment of Low Q CBPM Prototype for SXFEL 202
 
  • J. Chen, L.W. Lai, Y.B. Leng, L.Y. Yu, R.X. Yuan
    SINAP, Shanghai, People's Republic of China
  
  To meet the high resolution beam position measurement requirement of micron or sub-micron for shanghai soft X-ray free electron laser (SXFEL) under construction, the cavity beam position monitor (CBPM) operating at C-band and the corresponding electronic has been designed by SINAP. In this paper, the design and optimize of the newly low Q cavity BPM is mentioned, the beam test was conducted on the Shanghai Deep ultraviolet free electron laser (SDUV-FEL) facility. CBPM signal processors including broadband oscilloscope and home-made digital BPM processor have been used to evaluate the system performance as well. The beam experimental result, which matched with MAFIA simulation very well, will be presented and discussed in this paper.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMB049  
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MOPMB051 Cavity BPM Performance Online Evaluation using PCA Method 208
 
  • Y.B. Leng, L.W. Lai, L.Y. Yu, R.X. Yuan
    SSRF, Shanghai, People's Republic of China
  • J. Chen, Z.C. Chen
    SINAP, Shanghai, People's Republic of China
  
  Funding: NSFS 11575282
This article proposes a new test method to evaluate the performance of cavity beam position monitors using the actual beam as the exciting signal. The new method sepa-rates the signals of different modes and improves the measurement accuracy by eliminating unwanted cou-plings from other sources. 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMB051  
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