Experimental studies of current-loss characteristics for coaxial magnetically-insulated-transmission line

Hu Yixiang; Huang Tao; Zeng Zhengzhong; Han Juanjuan; Zeng Jiangtao; Cong Peitian; Lei Tianshi

doi:10.3788/HPLPB20132505.1298

Volume 25 Issue 05

Mar. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(05): 1298-1302

Wang Qichao, Shi Jiaming, Zhao Dapeng, et al. Polarimetric contrast characteristics of camouflage target and background[J]. High Power Laser and Particle Beams, 2013, 25: 1354-1358. doi: 10.3788/HPLPB20132506.1354

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Hu Yixiang, Huang Tao, Zeng Zhengzhong, et al. Experimental studies of current-loss characteristics for coaxial magnetically-insulated-transmission line[J]. High Power Laser and Particle Beams, 2013, 25: 1298-1302. doi: 10.3788/HPLPB20132505.1298

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Experimental studies of current-loss characteristics for coaxial magnetically-insulated-transmission line

doi: 10.3788/HPLPB20132505.1298

1.
State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China

Received Date: 2012-06-14
Rev Recd Date: 2012-12-17
Publish Date: 2013-03-12

Abstract

Abstract

A test stand of one-meter long coaxial magnetically-insulated-transmission line (MITL) with 2 cm anode-cathode gap was designed and constructed based on the Qiangguang-Ⅰ facility. Current-loss characteristics of MITL with the load resistance of 0, 2.07, 4.12 and 5.68 were experimentally studied. Experimental results show that current loss along the MITL which fits in with the principle of magnetic insulation mainly occurred in the areas with abrupt change of geometrical impedance. And it is also shown that with the load resistance of 2.07 , the ratio of the vacuum electron flow between anode and cathode gap to the transmission-line current is close to 17.4%, and it increases gradually with the enhancement of the load resistance. Finally, based on theories of the space-charge flow, the experimental phenomena mentioned above were qualitatively analyzed and discussed.
- magnetically insulated transmission line,
- current loss,
- vacuum electron flow,
- geometrical impedance

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