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   作者單位： MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics,Peking University,Beijing 100871,China  刊 名： 中國物理C(英文版)  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2008 32(8)  分類號： O4  關鍵詞： coherent synchrotron radiation   magnetic compressor   energy spread   emittance  

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