High Power Laser and Particle Beams, Volume. 33, Issue 12, 123013(2021)

Statistical characteristics of S-band microwave pulse breakdown time in free space

Hao Yang1...2, Eryan Yan1,3, Yong Nie1,2, Chuan Yu1,3,*, Xiangyang Bao1, Qianglin Zheng1 and Haiying Hu1 |Show fewer author(s)
Author Affiliations
  • 1Institute of Applied Electronics, CAEP, Mianyang 621900, China
  • 2Graduate School of China Academy of Engineering Physics, Beijing 100088, China
  • 3Science and Technology on High Power Microwave Laboratory, Mianyang 621900, China
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    In the vicinity of atmospheric breakdown threshold, microwave pulse breakdown discharge becomes a probabilistic problem, which is closely related to breakdown time. When atmospheric breakdown occurs, the transmission pulse width and peak power will be shortened. The development of high power microwave technology is severely restricted by the hazards. To study the breakdown problem in high power microwave atmospheric transmission, the probability distribution curves of breakdown time in different processes are compared, and the effects of ionization rate and seed electron generation rate on breakdown time are discussed. The breakdown process of free space microwave was experimentally studied using S-band high power microwave pulse source. The breakdown time of plasma was monitored by photomultiplier tube, and a series of experiments were carried out in the presence or absence of cesium 137 seed electron source. The results show that increasing the seed electron generation rate is a more effective method to increase the pulse breakdown probability. In the process of repetition frequency, if there is cumulative effect, the breakdown delay time probability distribution curve will move to the left and tend to be stable. And the gas after breakdown will be easy to breakdown again in a short time.

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    Hao Yang, Eryan Yan, Yong Nie, Chuan Yu, Xiangyang Bao, Qianglin Zheng, Haiying Hu. Statistical characteristics of S-band microwave pulse breakdown time in free space[J]. High Power Laser and Particle Beams, 2021, 33(12): 123013

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    Paper Information

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    Received: Aug. 25, 2021

    Accepted: --

    Published Online: Dec. 21, 2021

    The Author Email: Yu Chuan (yuchuan@263.com)

    DOI:10.11884/HPLPB202133.210365

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