Studies of Particle Behaviour in Heliotron E by Means of Balmer-Alpha Laser Fluorescence Spectroscopy

Kiichiro Uchino, Katsunori Muraoka, Masanori Akazaki, Takeharu Koga, Mitsuo Maeda, Shigeru Sudo, Osamu Motojima, Fumimichi Sano, Motoyasu Sato, Takashi Mutoh, Hideki Zushi, Yasuhiko Takeiri, Atsuo Iiyoshi, Koji Uo

研究成果: Contribution to journalArticle査読

14 被引用数 (Scopus)

抄録

Measurements of atomic hydrogen density profiles in Heliotron E plasmas were performed, where attention was focussed on the anisotropy of the profiles in the poloidal cross section. Obtained penetration profiles of atomic hydrogen agreed well with the Monte Carlo code calculations of the penetration of Franck-Condon neutrals when averaged electron densities are larger than 1019 m–3. For, however, experimental profiles decreased steeper than calculated ones. Degree of the anisotropy of the neutral profiles in the poloidal cross section was also found to change with the value of. Global particle confinement time τp was evaluated from the measured atomic hydrogen profile. The results showed that Tp is around 20 ms for B = 1.9 T. In case of NBI plasma, τp increases as increasing the magnetic field strength, while it decreases as increasing the absorbed power.

本文言語英語
ページ(範囲)909-917
ページ数9
ジャーナルjournal of the physical society of japan
57
3
DOI
出版ステータス出版済み - 1988

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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