Spectroscopic measurement of hydrogen atom density in a plasma produced with 28 GHz ECH in QUEST

Satoru Mori, Taiichi Shikama, Kazuaki Hanada, Nao Yoneda, Arseniy Kuzmin, Masahiro Hasuo, Hiroshi Idei, Takumi Onchi, Akira Ejiri, Yuki Osawa, Yi Peng, Kyohei Matsuzaki, Shinichiro Kado, Keiji Sawada, Takeshi Ido, Kazuo Nakamura, Ryuya Ikezoe, Yoshihiko Nagashima, Makoto Hasegawa, Kengo KurodaAki Higashijima, Takahiro Nagata, Shun Shimabukuro

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

The spatial distribution of the hydrogen atom density was evaluated in a spherical tokamak (ST) plasma sustained only with 28 GHz electron cyclotron heating (ECH). The radially resolved Hδ emissivity was measured using multiple viewing chord spectroscopy and Abel inversion. A collisional-radiative (CR) model analysis of the emissivity resulted in a ground-state hydrogen atom density of 1015-1016 m-3 and an ionization degree of 1-0.85 in the plasma.

本文言語英語
論文番号44
ジャーナルAtoms
8
3
DOI
出版ステータス出版済み - 9月 2020

!!!All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学
  • 核物理学および高エネルギー物理学
  • 凝縮系物理学

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