Author: Kang, H.-S.
Paper Title Page
THOA4 Three Bunch Compressor Scheme for SASE FEL 447
 
  • H.-S. Kang, I.S. Ko, S.H. Nam
    PAL, Pohang, Kyungbuk, Republic of Korea
  • M.-H. Cho, C.H. Yi
    POSTECH, Pohang, Kyungbuk, Republic of Korea
 
  The bend angle of dipoles in bunch compressor needs to be small enough to reduce the emittance increase due to CSR, which requires a larger energy chirp at the preceding RF linac. Correlated energy spread is not reduced below FEL parameter after the following RF linac because of the small number of accelerating sections as in the PAL XFEL design. Three bunch compressor scheme can make it possible to minimize the CSR induced emittnace growth as well as reduce the correlated energy spread below FEL parameter.  
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