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A high repetitive rate intense electron beam accelerator based on high coupling Tesla transformer

Published online by Cambridge University Press:  06 January 2011

Jian-Chang Peng*
Affiliation:
Key Lab of Electronic Physics and Device of Ministry of Education, Xi'anJiaotong University, Xi'an, China North-West Institute of Nuclear Technology, Xi'an, China
Guo-Zhi Liu
Affiliation:
Key Lab of Electronic Physics and Device of Ministry of Education, Xi'anJiaotong University, Xi'an, China North-West Institute of Nuclear Technology, Xi'an, China
Xiao-Xin Song
Affiliation:
North-West Institute of Nuclear Technology, Xi'an, China
Jian-Cang Su
Affiliation:
North-West Institute of Nuclear Technology, Xi'an, China
*
Address correspondence and reprint requests to: Jian-Chang Peng, Key Lab of Electronic Physics and Device of Ministry of Education, Xi'anJiaotong University, P. O. Box, Xianning-road 28, Xi'an, 710049, China. E-mail: jchpeng@yahoo.com.cn

Abstract

Tesla transformers are widely used in short pulse, repetition pulsed power generators. In this paper, a high repetitive rate intense electron beam accelerator (IEBA) based on high coupling (~1) Tesla transformer, which consists of a primary charging system, coaxial pulse forming line (PFL) charged by Tesla transformer and gas spark switch is described, especially stressed on the high coupling Tesla transformer. By introducing magnetic core to enhance the coupling factor between the primary and secondary windings, the transformer is capable of producing high voltage pulse up to 1.4 MV in approximately 45 µs. A coaxial pulse forming line is closely attached to the transformer that the outer and inner magnetic cores are parts of the PFL's outer and inner conductors respectively. In addition, the parameters of the Tesla transformer and PFL are calculated, including the dimension of the PFL and Tesla transformer. Some experiment results showed that the IEBA is capable of producing electron beams of 300–700 kV/7–13 kA at repetitive rate 100 Hz, with the pulse width 35 ns. The maximal energy efficiency of the Tesla transformer is 83%.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2010

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