DocumentCode
1106421
Title
Free-electron laser beam quality
Author
Roberson, Charles W.
Author_Institution
Office of Naval Research, Arlington, VA, USA
Volume
21
Issue
7
fYear
1985
fDate
7/1/1985 12:00:00 AM
Firstpage
860
Lastpage
866
Abstract
Free-electron laser beam quality is defined as the ratio of the current density to the relative axial energy spread. The approach to obtaining high-quality electron beams in some representative accelerators is examined and compared to the beam brightness. Beam quality is found to be a decreasing function of beam current, unless axial current compression (i.e., subharmonic bunching) or high current density cathodes are used. Effects due to magnetic perturbations are enhanced at high beam density.
Keywords
Free electron lasers; Brightness; Current density; Electron beams; Electron sources; Free electron lasers; Laser beams; Linear accelerators; Particle beams; Power lasers; Temperature;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1985.1072776
Filename
1072776
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