Electrode erosion characteristics of repetitive gas spark switch under airtight and large current conditions

Repetition pulses with sub-microsecond arising time, high voltage and large current, have been widely utilized in the field of production and scientific research, in which the gas spark switch is usually selected because of the large state current and the high operating voltage. However, due to the recovery property of gas ionization, it is hard to get the repeated switch-on and switch-off at a high rate towards the conventional gas spark switch. Owing to the reliably triggering and faster arising time, the hydrogen thyratron is found to be more suitable for the switch to generate the repetition pulses at a high rate. In this paper we proposed a novel design of repetition pulses, in which it gets a several times high voltage output based on the inductive-adder, by using the hydrogen thyratron switch with a low operating voltage, and then we analyze the magnetic field distribution under the structure of the coaxial cable and describe the design of high voltage repetition pulses in details

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Electrode Erosion Characteristics of Repetitive Long-Life Gas Spark Switch Under Airtight Conditions

IEEE Transactions on Plasma Science ◽

10.1109/tps.2015.2428934 ◽

2015 ◽

Vol 43 (10) ◽

pp. 3425-3433 ◽

Cited By ~ 11

Author(s):

Jia-Wei Wu ◽

Ruo-Yu Han ◽

Wei-Dong Ding ◽

Hai-Bin Zhou ◽

Yun-Fei Liu ◽

...

Keyword(s):

Electrode Erosion ◽

Long Life ◽

Gas Spark Switch

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Spark Gap Electrode Erosion

10.21236/ada152802 ◽

1984 ◽

Author(s):

H. Krompholz ◽

M. Kristiansen

Keyword(s):

Electrode Erosion ◽

Spark Gap

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Electron wave interference device with vertical superlattices working in large current region

Electronics Letters ◽

10.1049/el:19890493 ◽

1989 ◽

Vol 25 (11) ◽

pp. 728-730 ◽

Cited By ~ 15

Author(s):

K. Tsubaki ◽

Y. Tokura ◽

T. Fukui ◽

H. Saito ◽

N. Susa

Keyword(s):

Electron Wave ◽

Wave Interference ◽

Large Current ◽

Current Region

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Electroweak axion string and superconductivity

Journal of High Energy Physics ◽

10.1007/jhep06(2021)172 ◽

2021 ◽

Vol 2021 (6) ◽

Author(s):

Yoshihiko Abe ◽

Yu Hamada ◽

Koichi Yoshioka

Keyword(s):

Electric Current ◽

Early Universe ◽

Parameter Space ◽

Cosmic String ◽

Topological Charge ◽

Attractive Force ◽

Electroweak Scale ◽

Large Current

Abstract We study the axion strings with the electroweak gauge flux in the DFSZ axion model and show that these strings, called the electroweak axion strings, can exhibit superconductivity without fermionic zeromodes. We construct three types of electroweak axion string solutions. Among them, the string with W-flux can be lightest in some parameter space, which leads to a stable superconducting cosmic string. We also show that a large electric current can flow along the string due to the Peccei-Quinn scale much higher than the electroweak scale. This large current induces a net attractive force between the axion strings with the same topological charge, which opens a novel possibility that the axion strings form Y-junctions in the early universe.

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