A study of pulsed high voltage driven hollow-cathode electron beam sources through synchronous optical trigger

Weijie HUO; Weiguo HE; Luofeng HAN; Kangwu ZHU; Feng WANG

doi:10.1088/2058-6272/ad113e

Plasma Science and Technology > 2024 > 26(5): 055501. > DOI: 10.1088/2058-6272/ad113e

Weijie HUO, Weiguo HE, Luofeng HAN, Kangwu ZHU, Feng WANG. A study of pulsed high voltage driven hollow-cathode electron beam sources through synchronous optical trigger[J]. Plasma Science and Technology, 2024, 26(5): 055501. DOI: 10.1088/2058-6272/ad113e

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A study of pulsed high voltage driven hollow-cathode electron beam sources through synchronous optical trigger

1.
Shanghai Aerospace Electronic Technology Institute, Shanghai 201109, People’s Republic of China
2.
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, People’s Republic of China
3.
School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, People’s Republic of China
4.
Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, Taiji Laboratory for Gravitational Wave Universe, Hangzhou 310024, People’s Republic of China
5.
Shanghai Aerospace Control Technology Institute, Shanghai 201109, People’s Republic of China

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Author Bio:
Weiguo HE: heweiguo@shu.edu.cn
Corresponding author:
Weiguo HE, heweiguo@shu.edu.cn
Received Date: October 19, 2023
Revised Date: November 28, 2023
Accepted Date: November 29, 2023
Available Online: January 30, 2024
Published Date: April 04, 2024

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Abstract

Abstract

In this study, a pulsed, high voltage driven hollow-cathode electron beam sources through an optical trigger is designed with characteristics of simple structure, low cost, and easy triggering. To validate the new design, the characteristics of hollow-cathode discharge and electron beam characterization under pulsed high voltage drive are studied experimentally and discussed by discharge characteristics and analyses of waveform details, respectively. The validation experiments indicate that the pulsed high voltage supply significantly improves the frequency and stability of the discharge, which provides a new solution for the realization of a high-frequency, high-energy electron beam source. The peak current amplitude in the high-energy electron beam increases from 6.2 A to 79.6 A, which indicates the pulsed power mode significantly improves the electron beam performance. Besides, increasing the capacitance significantly affects the high-current, lower-energy electron beam more than the high-energy electron beam.

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References

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A study of pulsed high voltage driven hollow-cathode electron beam sources through synchronous optical trigger