A new coaxial vircator with high efficiency and high power

yang wen yuan; ding wu

Volume 15 Issue 11

Nov. 2003

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yang wen yuan, ding wu. A new coaxial vircator with high efficiency and high power[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

yang wen yuan, ding wu. A new coaxial vircator with high efficiency and high power[J]. High Power Laser and Particle Beams, 2003, 15.

yang wen yuan, ding wu. A new coaxial vircator with high efficiency and high power[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

yang wen yuan, ding wu. A new coaxial vircator with high efficiency and high power[J]. High Power Laser and Particle Beams, 2003, 15.

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A new coaxial vircator with high efficiency and high power

1.
Institute of Applied Physics and Computational Mathematics,P.O.Box 8009-11,Beijing 100088,China

Publish Date: 2003-11-15

Abstract

Abstract

A new structure of the coaxial vircator is proposed and studied numerically in this paper. Using the coaxial extraction structure, the beam-wave interaction and energy extraction are carried out separately. The left wall of the extraction cavity will reflect the microwave, thus provide a feedback for the beam-wave interaction; And it can also absorb the used electrons drifting in the outer space of the interaction region. When a pulse with peak voltage of 500kV is fed into the vircator, a peak instant power greater than 2.5GW is achieved by simulation at 2.175GHz; the peak period-averaged power reaches 1.2GW with an rms efficiency of 11%. The output power has high mode purity and narrow bandwidth as in a conventional coaxial viractor.
- bicoaxial vircator,
- energy extraction structure,
- numerical simulation

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