Investigation of non-inductive plasma current start-up by RF on QUEST

Masaki Ishiguro, Kazuaki Hanada, Hiqing Liu, Ryota Ogata, Mitsutaka Isobe, Saya Tashima, Hideki Zushi, Khonosuke Sato, akihide fujisawa, Kazuo Nakamura, Hiroshi Idei, Mizuki Sakamoto, Makoto Hasegawa, Yuichi Takase, Takashi Maekawa, Yasuaki Kishimoto, Osamu Mitarai, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Formations of a closed flux surface (CFS) on QUEST are achieved by fully non-inductive current start-up driven by RF, which is 8.2GHz in frequency and more than 40kW in power. It found that appropriate magnetic configuration with positive n-index and reduction of particle recycling was crucial to achieve the non-inductive plasma current start-up (PCS) successfully. Especially the controllability of particle recycling should be improved by wall conditioning based on successive plasma production and wall cleaning with electron cyclotron resonance heating (ECR) plasmas induced by RF in frequency of 2.45GHz.

Original languageEnglish
Article number012041
JournalJournal of Physics: Conference Series
Volume511
Issue number1
DOIs
Publication statusPublished - Jan 1 2014
Event15th International Congress on Plasma Physics, ICPP 2010 and 13th Latin American Workshop on Plasma Physics, LAWPP 2010 - Santiago, Chile
Duration: Aug 8 2010Aug 13 2010

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plasma currents
recycling
plasma heating
controllability
conditioning
electron cyclotron resonance
cleaning
configurations

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Investigation of non-inductive plasma current start-up by RF on QUEST. / Ishiguro, Masaki; Hanada, Kazuaki; Liu, Hiqing; Ogata, Ryota; Isobe, Mitsutaka; Tashima, Saya; Zushi, Hideki; Sato, Khonosuke; fujisawa, akihide; Nakamura, Kazuo; Idei, Hiroshi; Sakamoto, Mizuki; Hasegawa, Makoto; Takase, Yuichi; Maekawa, Takashi; Kishimoto, Yasuaki; Mitarai, Osamu; Kawasaki, Shoji; Nakashima, Hisatoshi; Higashijima, Aki.

In: Journal of Physics: Conference Series, Vol. 511, No. 1, 012041, 01.01.2014.

Research output: Contribution to journalConference article

Ishiguro, M, Hanada, K, Liu, H, Ogata, R, Isobe, M, Tashima, S, Zushi, H, Sato, K, fujisawa, A, Nakamura, K, Idei, H, Sakamoto, M, Hasegawa, M, Takase, Y, Maekawa, T, Kishimoto, Y, Mitarai, O, Kawasaki, S, Nakashima, H & Higashijima, A 2014, 'Investigation of non-inductive plasma current start-up by RF on QUEST', Journal of Physics: Conference Series, vol. 511, no. 1, 012041. https://doi.org/10.1088/1742-6596/511/1/012041
Ishiguro, Masaki ; Hanada, Kazuaki ; Liu, Hiqing ; Ogata, Ryota ; Isobe, Mitsutaka ; Tashima, Saya ; Zushi, Hideki ; Sato, Khonosuke ; fujisawa, akihide ; Nakamura, Kazuo ; Idei, Hiroshi ; Sakamoto, Mizuki ; Hasegawa, Makoto ; Takase, Yuichi ; Maekawa, Takashi ; Kishimoto, Yasuaki ; Mitarai, Osamu ; Kawasaki, Shoji ; Nakashima, Hisatoshi ; Higashijima, Aki. / Investigation of non-inductive plasma current start-up by RF on QUEST. In: Journal of Physics: Conference Series. 2014 ; Vol. 511, No. 1.
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