Understanding atomic hydrogen behaviour in pumped divertor plasmas

K. Uchino, H. Takenaga, T. Kajiwara, T. Okada, K. Muraoka, M. Maeda, H. Iguchi, K. Ida, S. Okamura, H. Yamada, K. Matsuoka

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)


In order to set up a data base and diagnostic capability for understanding atomic hydrogen behaviour in pumped divertor plasmas, an experiment and a feasibility study using a novel laser-induced fluorescence (LIF) technique were performed. For the former, combined measurements of LIF tuned to Hα and emission intensities at Hα/Hβ were carried out on the compact helical system (CHS). The comparison of the measured data and a particle simulation code revealed atomic hydrogen behaviour quantitatively, providing a full estimate of toroidally and poloidally asymmetric distributions of hydrogen atoms. In order to supplement the data base around the pumped divertor region, the applicability of an LIF technique which uses two-photon excitation from the ground state was examined, based on the real optical constraints of the envisaged JET pumped divertor. It was concluded that it is feasible and the only remaining problem is not a serious one.

ジャーナルJournal of Nuclear Materials
出版ステータス出版済み - 12 1 1992

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 材料科学(全般)
  • 原子力エネルギーおよび原子力工学


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