Beam trip diagnostic system at SSRF

Beam trip diagnostic system at SSRF 1 2 3 first-author 1 3 1 3 1 3 1 3 1 3 1 3 1 3 corresp Corresponding author. E-mail address: liujianfei@sinap.ac.cn Corresponding author. E-mail address: liujianfei@sinap.ac.cn liujianfei@sinap.ac.cn Shanghai Institute of Applied Physics, CAS, Shanghai 201800, China Shanghai Institute of Applied Physics, CAS, Shanghai 201800, China Graduate University of Chinese Academy of Sciences, Beijing 100049, China Graduate University of Chinese Academy of Sciences, Beijing 100049, China Shanghai KEY Laboratory of Cryogenics & Superconducting RF Technology, Shanghai 201800, China Shanghai KEY Laboratory of Cryogenics & Superconducting RF Technology, Shanghai 201800, China In this paper we report the design and realization of beam trip diagnostic system at Shanghai Synchrotron Radiation Facility (SSRF). The system can find out the first fault signal in the key operation signals related to the RF system by analyzing the time sequence, also it can decide which trips occurs first among the three superconducting RF stations. All the states of monitored signals in a time period ahead and behind beam trip are recorded. The results are compared with those from other diagnostic tools at SSRF. The work is of help in improving reliability of the superconducting RF system and stability of the storage ring operation. Trip Shanghai Synchrotron Radiation Facility (SSRF) Radiation frequency (RF) References Dai Z M , Liu G M , Yin L X , et al . proceeding of EPAC08, WEPC008 , 2008 : 1999 - 2000 . Hu K H , Wu C Y , Chen Jenny , et al . PAC 2007 , 22nd IEEE Particle Accelerator Conference , 2007 : 4264 - 4266 . PAC 2007 HBM group. Dimension 4i, user manual Version 2.10 . [OL/EB]. [ 2009-06-01 ]. http://www.hbm.com . HBM group. Dimension 4i, user manual Version 2.10 10.13538/j.1001-8042/nst.20.261-264 2009-06-01 2009-10-20 2021-01-19 2009 Nuclear Science and Techniques 05 20