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TY - UNPB AU - Hua, L.F. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - The Development of Bunch Length Monitor Based on CSR for SXFEL J2 - Proc. of IBIC2021, Pohang, Rep. of Korea, 24-28 May 2021 CY - Pohang, Rep. of Korea T2 - International Beam Instrumentation Conference T3 - 10 LA - english AB - The Shanghai soft X-ray Free-Electron Laser facility (SXFEL) will be opened to user at the end of this year. In order to ensure the stable FEL generation, on-line single-shot and nondestructive bunch length monitors utilizing coherent synchrotron radiation (CSR) were installed after each of two bunch compressors (BC1, BC2). We have tested CSR monitor after BC1 when bunch length range from 1ps to 2 ps and calibrated with TDS stalled downstream. The results show that the monitor is capable of measuring picosecond bunch length with a precision of less than 10%. PB - JACoW Publishing CP - Geneva, Switzerland ER -