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Recent advances in compact repetitive high-power Marx generators

Authors :
Gong Haitao
Zhang Beizhen
Xiao Jin
Wang Ganping
Mingdong Zhu
Gan Yanqing
Falun Song
Li Chunxia
Li Fei
Source :
Laser and Particle Beams. 37:110-121
Publication Year :
2019
Publisher :
Hindawi Limited, 2019.

Abstract

This paper introduces recent activities on Marx-based compact repetitive pulsed power generators at the Institute of Applied Electronics (IAE), China Academy of Engineering Physics (CAEP), over the period 2010–2018. A characteristic feature of the generators described is the use of a simplified bipolar charged Marx circuit, in which the normal isolation resistors or inductors to ground are removed to make the circuit simpler. Several pulse-forming modules developed to generate a 100 ns square wave output are introduced, including thin-film dielectric lines of different structures, a pulse-forming line based on a Printed Circuit Board, and non-uniform pulse-forming networks. A compact repetitive three-electrode spark gap switch with low-jitter, high-voltage, and high-current was developed and is used in the generators. A positive and negative series resonant constant current power supply with high precision and high power is introduced. As an important part of the repetitive pulse power generator, a lower jitter pulse trigger source is introduced. Several typical high-power repetitive pulsed power generators developed at IAE are introduced including a 30 GW low-impedance Marx generator, a compact square-wave pulse generator based on Kapton-film dielectric Blumlein line, a 20 GW high pulse-energy repetitive PFN-Marx generator, and a coaxial Marx generator based on ceramic capacitors. The research of key technologies and their development status are discussed, which can provide a reference for the future development and application of miniaturization of compact and repetitive Marx generators.

Details

ISSN :
1469803X and 02630346
Volume :
37
Database :
OpenAIRE
Journal :
Laser and Particle Beams
Accession number :
edsair.doi...........61f0cbacafe76006c2e89d0f142623e4