Demonstration of efficiency enhancement in a high-power backward-wave oscillator by plasma injection
Date
1989-05-15Author
Carmel, Y.
Minami, K.
Kehs, R.
Destler, William
Granatstein, V.
Abe, D.
Lou, W.
Metadata
Show full item recordAbstract
An experimental demonstration of a strong enhancement of the interaction efficiency in a high-power
relativistic backward-wave oscillator when plasma is injected is presented. Controlled plasma injection
enhances the interaction efficiency over the vacuum case by a factor of up to 8 to a value of about 400/0.
The enhanced interaction is attributed to induced scattering of the electromagnetic radiation of electrons
in an electrostatic field produced by the background plasma and a beam space-charge wave in the corrugated
interaction region.
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