Title :
Mechanism of microwave pulse shortening in the relativistic backward wave oscillator
Author :
Korovin, S.D. ; Mesyats, G.A. ; Pegel, I.V. ; Polevin, S.D. ; Tarakanov, V.P.
Author_Institution :
Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia
Abstract :
It is demonstrated that pulse shortening occurring in the relativistic BWO at gigawatt power level is accompanied by formation of explosive-emission plasma on the surface of corrugated slow wave structure. Termination of microwave emission is explained in terms of absorption of the operating electromagnetic wave by electrons emitted from the plasma while the intensity of absorption is radically increased by the presence of positive ions emitted from the plasma.
Keywords :
backward wave oscillators; electromagnetic wave absorption; microwave generation; positive ions; pulse generators; pulsed power supplies; relativistic electron beam tubes; slow wave structures; absorption intensity; corrugated slow wave structure surface; electrons; explosive-emission plasma; microwave emission termination; microwave pulse shortening; operating electromagnetic wave; positive ions emission; relativistic BWO; relativistic backward wave oscillator; Cathodes; Electromagnetic scattering; Electromagnetic wave absorption; Electrons; Explosives; Microwave oscillators; Plasma sources; Plasma waves; Space vector pulse width modulation; Voltage;
Conference_Titel :
Pulsed Power Conference, 1999. Digest of Technical Papers. 12th IEEE International
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-5498-2
DOI :
10.1109/PPC.1999.823648
