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Research on the electromagnetic fields radiating during the operation of intense electron-beam accelerator

Published online by Cambridge University Press:  01 February 2013

Xuliang Fan ,
Jinliang Liu  and
Xinming Lv
Xuliang Fan*
Affiliation:
College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, China
Jinliang Liu
Affiliation:
College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, China
Xinming Lv
Affiliation:
Research Department, National University of Defense Technology, Changsha, China
*
Address correspondence and reprint requests to: Xuliang Fan, College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, 410073, China. E-mail: [email protected]
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Abstract

Strong electromagnetic fields are radiated during the operation of the intense electron-beam accelerator (IEBA), and it is investigated in this paper. It is obtained that the triggered spark-gap switch and the main switch of the IEBA are the radiation resources. Here, the radiation of the triggered spark-gap switch is researched carefully. Firstly, circuit simulation is used to simulate the current going through the switch. The electric fields generated by the current and its frequency spectra are both calculated. The electric fields of the IEBA are measured by using a bi-cone antenna. When the primary capacitor of the IEBA is charged to 20 kV, the radiation field with amplitude of 753.4 V/m, dominant frequency of 20.8 MHz and high frequency 100 MHz is obtained. The experiment results show reasonable agreements with the analysis. It is believed that the gas-gap switch is a new method to achieve wide-band radiation.

Type
Research Article
Information
Laser and Particle Beams , Volume 31 , Issue 1 , March 2013 , pp. 149 - 154
Copyright
Copyright © Cambridge University Press 2013

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