Statistical characterization of high voltage vacuum surface flashover with gapped and ungapped anodes

IF 2 3区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

Physics of Plasmas Pub Date : 2024-08-02 DOI:10.1063/5.0214059

M. Mounho, C. Fuksa, R. Clark, W. Brooks, M. Hopkins, A. Steiner, A. Neuber, J. Stephens

引用次数: 0

Abstract

This manuscript reports the experimental study of a novel vacuum high-voltage (HV) feedthrough geometry with a recessed anode triple junction (ATJ) relevant to large-scale pulsed power systems. It is shown experimentally that introducing a vacuum gap between the insulator–anode interface and recessing the ATJ farther away from the cathode triple junction significantly enhances high voltage (HV) vacuum surface flashover hold-off. The results for “first pulse” and “consecutive pulse” tests are reported. The physical mechanisms contributing to the electrical failure of this feedthrough geometry appear to be unique to this geometry. These findings show the potential to allow for HV vacuum surface flashover geometries with significantly improved electrical characteristics.

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有间隙和无间隙阳极高压真空表面闪蒸的统计特征

本手稿报告了对一种新型真空高压（HV）馈入器几何形状的实验研究，该几何形状具有与大规模脉冲电源系统相关的凹陷阳极三重结（ATJ）。实验表明，在绝缘体-阳极界面之间引入真空间隙，并将 ATJ 凹入远离阴极三重结的位置，可显著增强高压（HV）真空表面闪络抑制能力。报告了 "首次脉冲 "和 "连续脉冲 "试验的结果。导致这种馈入件几何形状电气失效的物理机制似乎是这种几何形状所独有的。这些研究结果表明，高压真空表面闪络几何形状具有显著改善电气特性的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Plasmas 物理-物理：流体与等离子体

CiteScore

4.10

自引率

22.70%

发文量

653

审稿时长

2.5 months

期刊介绍： Physics of Plasmas (PoP), published by AIP Publishing in cooperation with the APS Division of Plasma Physics, is committed to the publication of original research in all areas of experimental and theoretical plasma physics. PoP publishes comprehensive and in-depth review manuscripts covering important areas of study and Special Topics highlighting new and cutting-edge developments in plasma physics. Every year a special issue publishes the invited and review papers from the most recent meeting of the APS Division of Plasma Physics. PoP covers a broad range of important research in this dynamic field, including: -Basic plasma phenomena, waves, instabilities -Nonlinear phenomena, turbulence, transport -Magnetically confined plasmas, heating, confinement -Inertially confined plasmas, high-energy density plasma science, warm dense matter -Ionospheric, solar-system, and astrophysical plasmas -Lasers, particle beams, accelerators, radiation generation -Radiation emission, absorption, and transport -Low-temperature plasmas, plasma applications, plasma sources, sheaths -Dusty plasmas