Impact on the magnetic compressor due to CSR
When an electron bunch is compressed in a chicane compressor,the CSR (coherent synchrotron radiation) will induce energy redistribution along the bunch.Such energy redistribution will affect the longitudinal emittance as a direct consequence.It will also excite betatron oscillation due to the chromatic transfer functions,and hence a transverse emittance change.So,it is indispensable for us to find a way to alleviate the CSR-cansed emittance dilution and the bad result of chicane compressor in PKU-FEL.
作 者： LIU Chu-Yu WANG Fang WANG Er-Dong QUAN Sheng-Wen HAO Jian-Kui LU Xiang-Yang ZHANG Bao-Cheng ZHAO Kui 作者单位： MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics,Peking University,Beijing 100871,China 刊 名： 中国物理C(英文版) ISTIC 英文刊名： CHINESE PHYSICS C 年，卷(期)： 2008 32(8) 分类号： O4 关键词： coherent synchrotron radiation magnetic compressor energy spread emittance