Title :
Initial results of RF gun experiment
Author :
Abe, H. ; Asaka, T. ; Hanaki, H. ; Mizuno, A. ; Suzuki, S. ; Taniuchi, T. ; Yanagida, K.
Author_Institution :
SPring, Hyogo, Japan
Abstract :
A photocathode RF gun was built and it has been operated for beam measurement at SPring-8. The cavity was tested by using high power RF up to 18 MW. The electric field gradient on the cathode reached 127 MW/m. After RF conditioning, a laser pulse was irradiated on a copper cathode and the photo-emitted beam was accelerated up to 2.9 MeV. An effective quantum efficiency of the cathode was obtained by changing laser power and field gradient
Keywords :
accelerator RF systems; accelerator cavities; booster injectors; electron accelerators; electron guns; linear accelerators; particle beam diagnostics; photocathodes; 18 MW; RF conditioning; RF gun experiment; SPring-8; effective quantum efficiency; electric field gradient; laser power; laser pulse; photo-emitted beam; photocathode RF gun; Acceleration; Cathodes; Couplers; Filling; Laser beams; Laser mode locking; Linear particle accelerator; Pulse amplifiers; Radio frequency; Surface emitting lasers;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794357
