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Kinetic description of a wiggler-pumped ion-channel free-electron laser by applying the Einstein coefficient technique

Published online by Cambridge University Press:  03 June 2013

A. HASANBEIGI ,
S. ABASIROSTAMI  and
H. MEHDIAN
A. HASANBEIGI
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr Mofatteh Avenue, Tehran 15614, Iran (hbeigi@tmu.ac.ir)
S. ABASIROSTAMI
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr Mofatteh Avenue, Tehran 15614, Iran (hbeigi@tmu.ac.ir)
H. MEHDIAN
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr Mofatteh Avenue, Tehran 15614, Iran (hbeigi@tmu.ac.ir)
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Abstract

A kinetic theory is used to investigate the theory of a free-electron laser with a helical wiggler and an ion channel based on the Einstein coefficient method. The laser gain in the low-gain regime is obtained for the case of a cold tenuous relativistic electron beam, where the beam plasma frequency is much less than the radiation frequency, propagating in this configuration. The resulting gain equation is analyzed numerically over a wide range of system parameters.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 5 , October 2013 , pp. 853 - 857
Copyright
Copyright © Cambridge University Press 2013 

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