Experimental study of backward wave oscillator with resonant reflector operating at low magnetic field

song zhi-min; liu guo-zhi; chen chang-hua; fan ju-ping

Volume 18 Issue 09

Sep. 2006

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song zhi-min, liu guo-zhi, chen chang-hua, et al. Experimental study of backward wave oscillator with resonant reflector operating at low magnetic field[J]. High Power Laser and Particle Beams, 2006, 18.

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song zhi-min, liu guo-zhi, chen chang-hua, et al. Experimental study of backward wave oscillator with resonant reflector operating at low magnetic field[J]. High Power Laser and Particle Beams, 2006, 18.

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Experimental study of backward wave oscillator with resonant reflector operating at low magnetic field

1.
Northwest Institute of Nuclear Technology,P.O.Box 69-13,Xi’an 710024,China

Publish Date: 2006-09-15

Abstract

Abstract

This paper presents the results from simulative and experimental studies of backward wave oscillator(BWO) with resonant reflector operating at low magnetic field. The influence of drift tube length between the resonant reflector and the slow wave structure on the efficiency of the BWO is studied. Simulation and experimental results indicate that because of the pre-modulation effect of resonant reflector, there are several efficiency spikes at optimum drift lengths. When the applied magnetic field was 0.7 T and the drift length was 4.9 cm in the experiment, the microwave power of 700 MW with 8.7 GHz frequency and 20 ns pulse width was obtained.
- high power microwave,
- relativistic backward wave oscillator,
- resonant reflector,
- drift tube,
- low magnetic field

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