Optical diagnosis of electrical explosion process of aluminum wire

Zhao Junping; Zhang Qiaogen; Zhou Qing; Yan Wenyu; Qiu Aici

doi:10.3788/HPLPB20122403.0544

Volume 24 Issue 03

Jun. 2016

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(03): 544-548

Li Shuang, Wang Jianguo. Influence of reflectors on field uniformity in reverberation chamber[J]. High Power Laser and Particle Beams, 2013, 25: 709-714. doi: 10.3788/HPLPB20132503.0709

Citation:

Zhao Junping, Zhang Qiaogen, Zhou Qing, et al. Optical diagnosis of electrical explosion process of aluminum wire[J]. High Power Laser and Particle Beams, 2012, 24: 544-548. doi: 10.3788/HPLPB20122403.0544

Li Shuang, Wang Jianguo. Influence of reflectors on field uniformity in reverberation chamber[J]. High Power Laser and Particle Beams, 2013, 25: 709-714. doi: 10.3788/HPLPB20132503.0709

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Optical diagnosis of electrical explosion process of aluminum wire

doi: 10.3788/HPLPB20122403.0544

1.
School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;
2.
Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China

Received Date: 2011-10-31
Publish Date: 2012-03-05

Abstract

Abstract

The discharge characteristic and plasma parameters of electrical explosion of aluminum thin wire were studied by framing camera and spectrograph. The experiments were carried out under several different discharge voltages with aluminum wires of 40 m and 100 m in diameter. The experiments show that there are two types of secondary breakdown processes in the metal vapor: inner breakdown and surface breakdown. The inner breakdown, which generates a plasma with better spatial uniformity and symmetry and consequently leads to more steady and repeatable discharge, takes place more easily in thinner wire under the same conditions. The electron temperature and density of the plasma have the order of magnitude of 104 K and 1018 cm-3, respectively.
- electrical explosion,
- plasma,
- framing photograph,
- spectrum,
- electron temperature,
- electron density

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