The Shanghai FEL User Facility

The Shanghai FEL User Facility 1 first-author 1 1 1 1 2 Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800 Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800 Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039 Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039 The Shanghai FEL User Facility (SFEL) for interdisciplinary studies is based on a rf linear accelerator. The prime goal of SFEL is to provide a broadly tunable laser beam from near-IR to far-IR with tens of MW at peak power. A linear accelerator will operate in three modes: ~ 3 MeV mode, 20 ~ 30 MeV mode and 40 ~ 50 MeV mode. In 20 ~ 30 MeV mode, the accelerator consists of a ns grid gun driven at 476 MHz, a 476 MHz subharmonie buncher, a 2856 MHz T-W type of buncher with high field gradients, and a SLAC type linac. Free electron laser Linear accelerator Far infrared radiation Near infrared radiation References Colson W B. Nucl Instr and Meth , 1996 , A375 : 669 Nucl Instr and Meth William B. Herrmannsfeldt, ETP, SLAC-266 , 1973 Herrmannsfeldt, ETP, SLAC-266 Crandll K R , Young L . PARMELA, LANL Report LA-UR-90-1766 , 1990 PARMELA, LANL Report LA-UR-90-1766 The Key Engineering Projeet Supported by the Chinese Academy of Seienees 1997-05-03 1998-02-01 2021-02-05 1998 Nuclear Science and Techniques 1 9