Analysis of the saturation of a high-gain free-electron laser

Physical Review E Volume 47 Issue 6 Page 4412-4429 published_at 1993-06
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Title ( eng )
Analysis of the saturation of a high-gain free-electron laser
Creator
Gluckstern Robert L.
Krinsky Samuel
Source Title
Physical Review E
Volume 47
Issue 6
Start Page 4412
End Page 4429
Abstract
We study the saturated state of an untapered free-electron laser (FEL) in the Compton regime, arising after exponential amplification of an initially low level of radiation by an initially monoenergetic, unbunched electron beam. The saturated state of the FEL is described by oscillations about an equilibrium state. Using the two invariants of the motion and certain assumptions motivated by computer simulations we provide approximate analytic descriptions of the radiation field and electron distribution in the saturation regime. We first consider a one-dimensional approximation and later extend our approach to treat an electron beam of finite radial extent. Of note is a result on the radiated power in the case of an electron beam with a small radius.
NDC
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
The American Physical Society
Date of Issued 1993-06
Rights
Copyright (c) 1993 The American Physical Society
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1063-651X
[DOI] 10.1103/PhysRevE.47.4412
[NCID] AA10848730
[DOI] http://dx.doi.org/10.1103/PhysRevE.47.4412