Enhanced window breakdown dynamics in a nanosecond microwave tail pulse

被引：76

作者：

Chang, Chao ^{[1
,2
,3
]}

Zhu, Meng ^{[1
]}

Verboncoeur, John ^{[4
]}

Li, Shuang ^{[1
]}

Xie, Jialing ^{[1
]}

Yan, Kai ^{[1
]}

Luo, Tongding ^{[1
]}

Zhu, Xiaoxin ^{[1
]}

机构：

[1] Northwest Inst Nucl Technol, Lab Sci & Technol High Power Microwave, Xian 710024, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Minist Educ, Key Lab Phys Elect & Devices, Xian 710049, Shaanxi, Peoples R China

[3] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[4] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 25期

关键词：

MULTIPACTOR DISCHARGE;

D O I：

10.1063/1.4885398

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The mechanisms of nanosecond microwave-driven discharges near a dielectric/vacuum interface were studied by measuring the time-and space-dependent optical emissions and pulse waveforms. The experimental observations indicate multipactor and plasma developing in a thin layer of several millimeters above interface. The emission brightness increases significantly after main pulse, but emission region widens little. The mechanisms are studied by analysis and simulation, revealing intense ionization concentrated in a desorbed high-pressure layer, leading to a bright light layer above surface; the lower-voltage tail after main pulse contributes to heat electron energy tails closer to excitation cross section peaks, resulting in brighter emission. (C) 2014 AIP Publishing LLC.

引用

页数：5

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