Title :
Operation of FIR-and UV-FEL facilities and FEL beam sharing to user´s rooms at the FELI
Author :
Tomimasu, T. ; Okuma, S. ; Wakita, K. ; Takii, T. ; Oshita, E. ; Wakisaka, K. ; Tongu, H.
Author_Institution :
Free Electron Laser Res. Inst., Osaka, Japan
Abstract :
Four FEL facilities FEL-1, FEL-2, FEL-3 and FEL-4 achieved lasing at FELI in Oct. 1994, in Feb. 1995, in Dec. 1995 and in Oct. 1996, respectively. Two IR facilities FEL-1 and FEL-2 are open for users to supply several MW-level FELs covering the wavelength range of 1-20 μm every other week. The maximum average power of the IR-FEL is 2 W. Total operation time in 1996 was about 2400 hours. The visible- and UV-facility FEL-3 has broken the world record for the shortest wavelength oscillation of linac-based FELs with a thermionic gun up to 0.278 μm. The FEL beams are delivered from the optical cavities to the diagnostics room and four user´s rooms (eighteen stations) through the pipe lines using fan-shaped mirrors with a 90° opening angle
Keywords :
electron guns; free electron lasers; laser beams; laser cavity resonators; laser mirrors; thermionic electron emission; wigglers; 0.278 mum; 1 to 20 mum; 165 MeV; 2 W; 2400 h; FEL-1; FEL-2; FEL-3; FEL-4; Free Electron Laser Research Institute; IR facilities; MW-level; UV free electron laser; UV-facility; diagnostics room; fan-shaped mirrors; far-IR free electron laser; free electon laser beam sharing; lasing; linac-based FELs; maximum average power; opening angle; optical cavities; pipe lines; shortest wavelength oscillation; thermionic gun; total operation time; user´s rooms; users; visible-facility; wavelength range; world record; Acceleration; Electron beams; Electron optics; Klystrons; Linear particle accelerator; Optical pulses; Optical waveguides; Pulse modulation; Shape measurement; Undulators;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749818
