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Title: A powerful reflector in relativistic backward wave oscillator

Abstract

An improved TM{sub 021} resonant reflector is put forward. Similarly with most of the slow wave structures used in relativistic backward wave oscillator, the section plane of the proposed reflector is designed to be trapezoidal. Compared with the rectangular TM{sub 021} resonant reflector, such a structure can depress RF breakdown more effectively by weakening the localized field convergence and realizing good electrostatic insulation. As shown in the high power microwave (HPM) generation experiments, with almost the same output power obtained by the previous structure, the improved structure can increase the pulse width from 25 ns to over 27 ns and no obvious surface damage is observed even if the generated HPM pulses exceed 1000 shots.

Authors:
; ; ; ; ; ; ;  [1]
  1. Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 (China)
Publication Date:
OSTI Identifier:
22303655
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BREAKDOWN; COMPARATIVE EVALUATIONS; DAMAGE; MICROWAVE RADIATION; OSCILLATORS; PULSES; RELATIVISTIC RANGE; SURFACES

Citation Formats

Cao, Yibing, E-mail: caoyibing@nint.ac.cn, Sun, Jun, Teng, Yan, Zhang, Yuchuan, Zhang, Lijun, Shi, Yanchao, Ye, Hu, and Chen, Changhua. A powerful reflector in relativistic backward wave oscillator. United States: N. p., 2014. Web. doi:10.1063/1.4895660.
Cao, Yibing, E-mail: caoyibing@nint.ac.cn, Sun, Jun, Teng, Yan, Zhang, Yuchuan, Zhang, Lijun, Shi, Yanchao, Ye, Hu, & Chen, Changhua. A powerful reflector in relativistic backward wave oscillator. United States. doi:10.1063/1.4895660.
Cao, Yibing, E-mail: caoyibing@nint.ac.cn, Sun, Jun, Teng, Yan, Zhang, Yuchuan, Zhang, Lijun, Shi, Yanchao, Ye, Hu, and Chen, Changhua. Mon . "A powerful reflector in relativistic backward wave oscillator". United States. doi:10.1063/1.4895660.
@article{osti_22303655,
title = {A powerful reflector in relativistic backward wave oscillator},
author = {Cao, Yibing, E-mail: caoyibing@nint.ac.cn and Sun, Jun and Teng, Yan and Zhang, Yuchuan and Zhang, Lijun and Shi, Yanchao and Ye, Hu and Chen, Changhua},
abstractNote = {An improved TM{sub 021} resonant reflector is put forward. Similarly with most of the slow wave structures used in relativistic backward wave oscillator, the section plane of the proposed reflector is designed to be trapezoidal. Compared with the rectangular TM{sub 021} resonant reflector, such a structure can depress RF breakdown more effectively by weakening the localized field convergence and realizing good electrostatic insulation. As shown in the high power microwave (HPM) generation experiments, with almost the same output power obtained by the previous structure, the improved structure can increase the pulse width from 25 ns to over 27 ns and no obvious surface damage is observed even if the generated HPM pulses exceed 1000 shots.},
doi = {10.1063/1.4895660},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 9,
volume = 21,
place = {United States},
year = {2014},
month = {9}
}