Study on a modified laser-triggered vacuum switch

Author

Wenfang Fan ; Zhenghao He ; Ying Wang ; Xiaopo Mao ; Huazhong Lin ; Fali Tan

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol. (HUST), Wuhan, China

fYear

2015

Firstpage

1

Lastpage

2

Abstract

In this paper, a modified laser-trigged vacuum switch(LTVS) is developed to optimize the triggered vacuum switch (TVS) and complies with the requirements of pulsed power technology. The comparison between a flat-electrode type switch and a multi-electrode type switch is discussed founded on the simulation and experimental results. The results show that the delay time of the modified switch can reach as low as 17 ns and the operating voltage ranges from 60V to 20KV. Finally, laser energy influencing the trigger characteristics is analyzed built on the thermionic mechanism.

Keywords

pulsed power switches; thermionic emission; vacuum switches; delay time; flat-electrode type switch; laser energy; modified laser-triggered vacuum switch; multielectrode type switch; operating voltage; pulsed power technology; thermionic mechanism; trigger characteristics; voltage 60 V to 20 kV; Delays; Discharges (electric); Electric fields; Electrodes; Optical switches; Plasmas; delay time; flat-electrode type; laser energy; multi-electrode type; thermionic mechanism;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7223934

Filename

7223934