Wiggler focused relativistic sheet beam propagation in a planar free-electron laser configuration
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Date
1989-11-13Author
Radack, D.
Booske, J.
Carmel, Y.
Destler, William
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Show full item recordAbstract
The propagation of a relativistic sheet electron beam through a spatially periodic magnetic
field (wiggler) has been studied experimentally. The wiggler serves two purposes; it provides
beam focusing as well as the magnetostatic pump for the free-electron laser (FEL) interaction.
Experiments conducted to study sheet beam generation and propagation in a short-period (1
em) planar wiggler are presented. A 500 keY, 7 A sheet electron beam was propagated
through a 3.2 mm waveguide with negligible losses due to intercepted current. In addition, the
first observation of wiggler-induced radiation was obtained from the sheet beam FEL in a
short-period wiggler oscillator configuration.
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