Title :
Compact, high efficiency drifting electron laser powered by slow-wave wiggler
Author_Institution :
Sci. Applications Int. Corp., McLean, VA, USA
Abstract :
Summary form only given. A tabletop Drifting Electron Laser (DEL) in a partitioned cavity is proposed. (Sub)mm electrostatic magnetron-type waves are excited in the lower portion of the cavity powered by an emitter cathode. These waves serve as a high power short wavelength wiggler in the upper partition, where relativistically upshifted radiation is produced by the passing of an E/spl times/B drifting beam. The device combines (a) higher wiggler strength /spl alpha//sub w/ under given power relative to fast wave EM wigglers, (b) lower sensitivity to thermal spreads and higher electronic efficiency than the 1/2N/sub w/ FEL limit, due to the DEL principle, (c) a compact size comparable to Smith-Purcel FELs.
Keywords :
electron beam applications; free electron lasers; slow wave structures; wigglers; compact size; emitter cathode; high efficiency drifting electron laser; high power short wavelength wiggler; partitioned cavity; relativistically upshifted radiation; slow-wave wiggler; submm electrostatic magnetron-type waves; tabletop drifting electron laser; Electron emission; Electrostatics; Laser theory; Magnetic field measurement; Plasma waves; Plasma x-ray sources; Power lasers; Pulse measurements; Undulators; X-ray lasers;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.605049
