JT-60Uにおける第一壁コンディショニング -不純物および水素リサイクリングの制御- [in Japanese] Wall Conditioning to Control Impurity and Hydrogen Isotope Recycling in JT-60U [in Japanese]
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- 東島 智 HIGASHIJIMA Satoru
- 日本原子力研究所那珂研究所 Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- JT-60チーム the JT-60 Team
- 日本原子力研究所那珂研究所 Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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Author(s)
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- 東島 智 HIGASHIJIMA Satoru
- 日本原子力研究所那珂研究所 Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- JT-60チーム the JT-60 Team
- 日本原子力研究所那珂研究所 Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
Abstract
Wall conditioning can control impurity and hydrogen isotope. So various methods of wall conditioning have been adopted in JT-60U. After the vacuum vessel is closed and pumping system works, tokamak discharges can be obtained within a week. The conditioning can also make a good condition that recycled particles are so low as to correspond to injected NB particles. An equivalent Q<SUB>DT</SUB> up to 1.25 can be transiently achieved in reversed shear plasmas because of both optimization of wall conditioning and improved confinement. Wall conditioning in JT-60U is discussed in this paper.
Journal
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- Journal of Plasma and Fusion Research
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Journal of Plasma and Fusion Research 75(11), 1297-1304, 1999-11-25
The Japan Society of Plasma Science and Nuclear Fusion Research
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