Numerical investigations on the effects of geometrical parameters on free electron laser instability

Autor:	N. K. Jaiman, B. S. Sharma
Rok vydání:	2008
Předmět:	Physics Two-stream instability Amplitude Free-electron laser Cathode ray Physics::Accelerator Physics Backward-wave oscillator Plasma Atomic physics Condensed Matter Physics Instability Power (physics)
Zdroj:	Journal of Plasma Physics. 74:741-747
ISSN:	1469-7807 0022-3778
DOI:	10.1017/s0022377808007447
Popis:	In this paper we numerically investigate the effects of various geometrical parameters of a backward wave oscillator (BWO), filled with a magnetized plasma of uniform density and driven by a mild relativistic solid electron beam, on the instability growth rate (Γ) of a free electron laser (FEL). The FEL instability is numerically calculated and the result is compared with the instability growth rate of an annular electron beam for the same set of parameters. The instability growth for a solid electron beam scales inversely to the seventh power of relativistic gamma factor γ0 and directly proportional to the corrugation amplitude.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1ceba7df856cbe10326308957f023030 https://doi.org/10.1017/s0022377808007447 Zobrazit plný text záznamu