Mishra, P.K. (2006) A Comparative Study of the Full Dispersion Relation, Compton Dispersion Relation, and Raman Dispersion Relation of a Free-Electron Laser in Helical Wiggler and Guiding Magnetic Fields. Laser Physics , 16 (7). pp. 1050-1053. ISSN 1054-660X

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Abstract

The full dispersion relation obtained for a free-electron laser in the presence of circularly polarized, periodic, static wiggler and guiding magnetic fields by the kinetic approach incorporating the particle trajectories is reduced to Compton and Raman regime approximations in the case of a tenuous electron beam. The temporal growth rate has been compared between the full dispersion relation and the Compton dispersion relation, as well as between the full dispersion relation and the Raman dispersion relation in the microwave region. The results show the maxima of growths in the full dispersion relation and the Compton dispersion relation, as well as the full dispersion relation and the Raman dispersion relation, are at the same locations, but the growth rates in both regimes are enhanced with respect to the full dispersion relation for the same plasma frequency and cavity parameters.

Item Type:	Article
Subjects:	Instrumentation
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	21 Nov 2011 09:12
Last Modified:	21 Nov 2011 09:12
URI:	http://cimfr.csircentral.net/id/eprint/78

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