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Influence of electrode spacing and gas pressure on parameters of a runaway electron beam generating during the nanosecond breakdown in SF6 and nitrogen T. V. Tarasenko, C. Zhang, M. I. Lomaev [et al.]

Contributor(s): Zhang, Cheng | Kozyrev, Andrey V | Sorokin, Dmitry A | Hou, Xingmin | Semeniuk, Natalia S | Burachenko, Alexander G | Yan, Ping | Kozhevnikov, Vasily Yu | Baksht, Evgenii Kh | Tarasenko, Viktor Fedotovich | Lomaev, Mikhail I | Shao, TaoMaterial type: ArticleArticleSubject(s): электрические поля | наносекундные разряды | электронные пучки | азот | электродыGenre/Form: статьи в журналахOnline resources: Click here to access online In: High voltage Vol. 2, № 2. P. 49-55Abstract: This study deals with experimental and theoretical simulation data showing the influence of electrode spacing and gas pressure on parameters of a supershort avalanche electron beam (SAEB) formed in SF 6 and nitrogen at different rise times and amplitudes of a voltage pulse. Using GIN-55-01, VPG-30-200, and SLEP-150M pulsers, tubular cathodes with a diameter of 6 mm, as well as gaps of 3, 5, and 8 mm, it was shown that the SAEB current amplitude can both increase and decrease depending on an electrode spacing, a waveform and a rise time of the voltage pulse, as well as the pressure of SF 6 and nitrogen. It was established as a result of simulation that maximal voltage across the gap during the process of generation of runaway electrons and the thickness of an anode foil have a major effect on the SAEB current pulse amplitude.
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Библиогр.: 41 назв.

This study deals with experimental and theoretical simulation data showing the influence of electrode spacing and gas pressure on parameters of a supershort avalanche electron beam (SAEB) formed in SF 6 and nitrogen at different rise times and amplitudes of a voltage pulse. Using GIN-55-01, VPG-30-200, and SLEP-150M pulsers, tubular cathodes with a diameter of 6 mm, as well as gaps of 3, 5, and 8 mm, it was shown that the SAEB current amplitude can both increase and decrease depending on an electrode spacing, a waveform and a rise time of the voltage pulse, as well as the pressure of SF 6 and nitrogen. It was established as a result of simulation that maximal voltage across the gap during the process of generation of runaway electrons and the thickness of an anode foil have a major effect on the SAEB current pulse amplitude.

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