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The application of flash-over switch in high energy fluence diode

Published online by Cambridge University Press:  06 May 2008

Yongmin Zhang
Affiliation:
Department of Electrical Engineering, Tsinghua University, Beijing, China Northwest Institute of Nuclear Technology, Xi'an, China
Junping Tang
Affiliation:
Northwest Institute of Nuclear Technology, Xi'an, China Department of Electrical Engineering, Xi'an Jiaotong University, Xi'an, China
Jianjun Huang
Affiliation:
Northwest Institute of Nuclear Technology, Xi'an, China Department of Electrical Engineering, Xi'an Jiaotong University, Xi'an, China
Aici Qiu
Affiliation:
Northwest Institute of Nuclear Technology, Xi'an, China Department of Electrical Engineering, Xi'an Jiaotong University, Xi'an, China
Zhicheng Guan
Affiliation:
Department of Electrical Engineering, Tsinghua University, Beijing, China
Xinxin Wang*
Affiliation:
Department of Electrical Engineering, Tsinghua University, Beijing, China
*
Address correspondence and reprint requests to: X. Wang, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China. E-mail: wangxx@mail.ts.nghua.edu.cn

Abstract

In order to restrain the prepulse of a high energy fluence diode, a flash-over switch made of a nylon cylinder was inserted in between the cathode stalk and the cathode. Secondary prepulse technique was developed to lower the flash-over voltage of the switch. It was found that the surface resistivity of the nylon insulator changes considerably after each shot and this resistivity on the order of 107 Ω/m is most suitable for a 20-mm long flash-over switch to operate stably at a lower flash-over voltage.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2008

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