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Proceedings Paper

Multidimensional simulation studies of the SELENE FEL oscillator/buncher followed by a radiator/amplifier output scheme
Author(s): S. J. Hahn; William M. Fawley
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Paper Abstract

We analyze and present numerical simulations of the so-called electron output scheme applied to the SELENE proposal of using a high power FEL to illuminate satellite solar cells. In this scheme, a first stage FEL oscillator bunches the electron beam while a second stage `radiator' extracts high power radiation. Our analysis suggests only in the case where the radiator employs a long, tapered undulator will the electron output scheme produce a significant increase in extraction efficiency over what is obtainable from a simple, single-stage oscillator, 1- and 2-D numerical simulations of a 1.7 micrometers FEL employing the electron output scheme show that large bunching fractions at the output of the oscillator stage but only approximately 1% extraction efficiency from the radiator stage.

Paper Details

Date Published: 26 April 1995
PDF: 9 pages
Proc. SPIE 2376, Laser Power Beaming II, (26 April 1995); doi: 10.1117/12.208198
Show Author Affiliations
S. J. Hahn, Stanford Univ. (United States)
William M. Fawley, Lawrence Berkeley Lab. (United States)

Published in SPIE Proceedings Vol. 2376:
Laser Power Beaming II
Harold E. Bennett; Richard D. Doolittle, Editor(s)

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