Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS

Liu Yi; Shen Yi; Xia Liansheng; Wang Wei; Ye Mao; Zhang Huang

doi:10.11884/HPLPB202032.190328

Volume 32 Issue 2

Dec. 2019

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Liu Yi, Shen Yi, Xia Liansheng, et al. Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS[J]. High Power Laser and Particle Beams, 2020, 32: 025005. doi: 10.11884/HPLPB202032.190328

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Liu Yi, Shen Yi, Xia Liansheng, et al. Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS[J]. High Power Laser and Particle Beams, 2020, 32: 025005. doi: 10.11884/HPLPB202032.190328

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Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS

doi: 10.11884/HPLPB202032.190328

Institute of Fluid Physics, CAEP, P. O. Box 919-106, Mianyang 621900, China

Received Date: 2019-09-02
Rev Recd Date: 2019-10-12
Publish Date: 2019-12-26

Abstract

Abstract

Gallium Arsenide Photoconductive Semiconductor Switch (GaAs-PCSS) has outstanding features, such as, fast response, high repetition, low jitter and high-power capacity. Multi-channel design can effectively reduce the damage from high current in nonlinear mode and improve switch’s lifetime. In this paper, on the solid-state pulse forming line experimental platform, multiple GaAs-PCSSs are connected in parallel as one switch through a special fixture, and different trigger signals are applied to each of them, in order to study the necessary conditions for GaAs-PCSS multi-channel synchronous conduction. The results show that, firstly, by the same trigger signals, the on-current is successfully divided into 4 GaAs-PCSS channels; secondly, by different trigger signals, the delay time difference and trigger energy difference must be lower than 1 ns and 20 μJ respectively, if an effective current diversion is expected; thirdly, split and integrated multi-channel GaAs-PCSS structures are designed, and the integrated 20-channel GaAs-PCSS was slightly damaged after 7 000 shots.
- GaAs-PCSS,
- multi-channel,
- synchronous,
- trigger delay,
- trigger energy

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References(12)

References

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