Title :
Beam dynamics and RF evolution in a multistage klystron-like free-electron laser
Author_Institution :
Inst. for Beam Particle Dynamics, Houston Univ., TX, USA
Abstract :
The current understanding of beam dynamics and RF evolution in a klystron-like free-electron laser (KFEL) is presented. Phase sensitivity to injection jitters estimated by existing theories is discussed. BBU (beam breakup) suppression due to linear detuning is proposed as an alternative for the previously proposed techniques. It is concluded that most of the principal issues in multistage KFEL physics have been analyzed and serious obstacles to realizing a machine will be overcome with appropriate cures. However, in an interaction between a bunched beam and mode converters, RF extraction septums will induce further detrimental aspects in beam dynamics. Its assessment and cure are left unsolved.<>
Keywords :
electron accelerators; free electron lasers; linear accelerators; particle beam diagnostics; RF evolution; beam breakup; beam dynamics; bunched beam; injection jitters; klystron-like free-electron laser; linear detuning; mode converters; Equations; Free electron lasers; Jitter; Laser beams; Laser theory; Microwave propagation; Particle beams; Power generation; Radio frequency; Undulators;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.165026
