Double-gap vircator operation at sub-microsecond pulse duration

A. Shlapakovski, T. Kweller, Y. Hadas, Ya E. Krasik, S. Polevin, I. Kurkan

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

1 Цитирования (Scopus)


The double-gap S-band vircator operation has been investigated at sub-microsecond duration of the highcurrent electron beam generated in a planar diode. This version of vircator (see Fig. 1), although driven by a highcurrent (≥10 kA) relativistic electron beam, nevertheless allows both relatively efficient microwave generation and also radiation frequency stability, due to the use of a single-mode two-section rectangular RF cavity. The double-gap vircator powered by the accelerator SINUS-7 (1MV, 20kA, 50ns) demonstrated ~1GW peak power of microwave radiation in the S-band at ~25ns pulse length with ~5% efficiency [1]. Earlier experiments with longer driving beam pulses [2] at the voltages close to those of [1] confirmed the constancy of the radiation frequency, as determined by the cavity, during the pulse. However, the microwave pulse was significantly shortened (≤100ns) as compared to the accelerating voltage pulse that was explained by electron and ion emission from the plasma formed on the cavity walls leading to absorption of the microwave energy. In this work, we present the results of the experiments performed at moderate accelerating voltages, ≤550kV, and longer pulse durations, ~500ns.

Язык оригиналаАнглийский
Название основной публикации2009 IEEE International Vacuum Electronics Conference, IVEC 2009
Число страниц2
СостояниеОпубликовано - 2009
Событие2009 IEEE International Vacuum Electronics Conference, IVEC 2009 - Rome, Италия
Продолжительность: 28 апр 200930 апр 2009


Другое2009 IEEE International Vacuum Electronics Conference, IVEC 2009

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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