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Proceedings Paper

Calculated Performance Of Near-Millimeter Free-Electron-Laser Amplifiers Including Effects Of Electron Beam Velocity Spread
Author(s): V. L. Granatstein; M. C. Wang; B. Levush
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Paper Abstract

The feasibility of developing a practical amplifier in the 'Optical' Klystron configuration at a wave-length of 2 mm has been investigated. The effect of beam velocity spread on the efficiency and gain of the 'Optical' Klystron was calculated. Greater sensitivity to beam velocity spread was found for three cavities than for two cavities. The efficiency was reduced to one-third of its cold beam value when axial energy spread Δγ/γ0 = 5.5 x 10-4 for three cavities, 6.7 x 10-4 for two cavities, and 2.8 x 10-3 for a single-cavity free electron laser. However, it is estimated that even for the case of three cavities, electron beams of suitable quality might be achievable.

Paper Details

Date Published: 2 June 1989
PDF: 5 pages
Proc. SPIE 1059, Space Sensing, Communications, and Networking, (2 June 1989); doi: 10.1117/12.951714
Show Author Affiliations
V. L. Granatstein, University of Maryland (United States)
M. C. Wang, Shanghai Institute of Optics and Fine Mechanics (China)
B. Levush, University of Maryland (United States)

Published in SPIE Proceedings Vol. 1059:
Space Sensing, Communications, and Networking
Monte Ross; Richard J. Temkin, Editor(s)

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