Townsend avalanche breakdown assisted by radio frequency wave in tokamaks

Makoto Hasegawa, Kazuaki Hanada, Kohnosuke Sato, Kazuo Nakamura, Hideki Zushi, Mizuki Sakamoto, Hiroshi Idei, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima

Research output: Contribution to journalArticle

Abstract

A simple model of radio frequency wave (RF) assisted breakdown based on Townsend avalanche theory is proposed for the purpose of evaluating the effect of RF on Townsend avalanche breakdown. According to this model, the required minimum electric field for RF-assisted breakdown can be decreased down to half of that for breakdown by the induction electric field alone. The electric field of RF reaches a minimum when the frequency of the RF is equal to the electron cyclotron frequency.

Original languageEnglish
Article number007
JournalPlasma and Fusion Research
Volume2
DOIs
Publication statusPublished - Jan 1 2007

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Townsend avalanche
radio frequencies
breakdown
electric fields
cyclotron frequency
induction

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Townsend avalanche breakdown assisted by radio frequency wave in tokamaks. / Hasegawa, Makoto; Hanada, Kazuaki; Sato, Kohnosuke; Nakamura, Kazuo; Zushi, Hideki; Sakamoto, Mizuki; Idei, Hiroshi; Kawasaki, Shoji; Nakashima, Hisatoshi; Higashijima, Aki.

In: Plasma and Fusion Research, Vol. 2, 007, 01.01.2007.

Research output: Contribution to journalArticle

Hasegawa, M, Hanada, K, Sato, K, Nakamura, K, Zushi, H, Sakamoto, M, Idei, H, Kawasaki, S, Nakashima, H & Higashijima, A 2007, 'Townsend avalanche breakdown assisted by radio frequency wave in tokamaks', Plasma and Fusion Research, vol. 2, 007. https://doi.org/10.1585/pfr.2.007
Hasegawa, Makoto ; Hanada, Kazuaki ; Sato, Kohnosuke ; Nakamura, Kazuo ; Zushi, Hideki ; Sakamoto, Mizuki ; Idei, Hiroshi ; Kawasaki, Shoji ; Nakashima, Hisatoshi ; Higashijima, Aki. / Townsend avalanche breakdown assisted by radio frequency wave in tokamaks. In: Plasma and Fusion Research. 2007 ; Vol. 2.
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