Title :
Design and operation of inductive acceleration modules for FEL with controlled voltage ramp
Author :
Kawasaki, S. ; Ishizuka, Hirokazu ; Tokuchi, A. ; Yamashita, Yukihiko ; Nakajima, S. ; Sakamoto, K. ; Maeda, H. ; Shiho, M.
Author_Institution :
Naka Lab., JAERI, Ibaraki, Japan
Abstract :
A new pulse compression system is fabricated for grading up the induction accelerator LAX-1, which is currently used for Raman FEL research at JAERI. It is designed so that the capacitance of PFL can be varied partly, and the output voltage ramp be controlled within ±20%. The system consists of a series of PFLs and magnetic switches for pulse compression from 2 μs and 30 kV to 130 ns and 250 kV. The final output is supplied with to 2×4 units of accelerating cavity. The design, circuit parameters, mechanism of varying the PFL parameters and the results compared with those of the numerical simulation are presented. Relation to the beam dynamics and FEL performance is also considered
Keywords :
collective accelerators; electron accelerators; free electron lasers; nuclear electronics; power supplies to apparatus; pulse shaping circuits; 130 ns; 2 mus; 250 kV; 30 kV; FEL; LAX-1; accelerating cavity; controlled voltage ramp; inductive acceleration modules; magnetic switches; output voltage ramp; pulse compression system; Acceleration; Amorphous magnetic materials; Circuits; Electron beams; Impedance; Magnetic switching; Magnetosphere; Pulse compression methods; Switches; Voltage control;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308788
