Wiggler focused relativistic sheet beam propagation in a planar free-electron laser configuration
- 13 November 1989
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 55 (20) , 2069-2071
- https://doi.org/10.1063/1.102108
Abstract
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 cm) planar wiggler are presented. A 500 keV, 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.Keywords
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