Title :
A fast method to estimate the gain of the microbunch instability in a bunch compressor
Author :
Reiche, S. ; Rosenzweig, J.B.
Author_Institution :
Dept. of Phys., California Univ., Los Angeles, CA
Abstract :
To reach high peak currents driving free-electron lasers an initial chirped electron bunch is compressed in a bunch compressor. The interaction of the electron beam with its radiation field can yield a collective instability, which amplifies any initial modulation in the current profile. We present a model, which allows one to derive an explicit analytical expression for the gain of the microbunch instability. The results are compared to those of the more complex analytical models
Keywords :
particle beam bunching; particle beam stability; bunch compressor; chirped electron bunch; free-electron lasers; microbunch instability; Analytical models; Chirp modulation; Electron beams; Free electron lasers; Laser modes; Laser theory; Magnetic separation; Magnets; Optical modulation; Physics;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Conference_Location :
Portland, OR
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289845
