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Title: The analysis of Raman scattering in a free-electron laser with a rectangular hybrid wiggler

A one dimensional theory of the stimulated Raman backscattering process in a free electron laser with rectangular hybrid wiggler (RHW) is analyzed. The dispersion relation in the rest frame of the electron beam and also a formula for the lab-frame spatial growth rate are derived. A numerical computation of the growth rate for RHW is conducted and a comparison with that for coaxial hybrid wiggler is made away from the resonance. The growth rate is found larger for the rectangular wiggler than for the coaxial wiggler. A much narrower magnetoresonance associated with the third spatial harmonic is also obtained compared to the first one.
Authors:
;  [1]
  1. Department of Physics, Iran University of Science and Technology, 1684613114 Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22486464
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BACKSCATTERING; CALCULATION METHODS; DISPERSION RELATIONS; ELECTRON BEAMS; FREE ELECTRON LASERS; ONE-DIMENSIONAL CALCULATIONS; RAMAN EFFECT; RESONANCE; WIGGLER MAGNETS