One-Dimensional Time Dependent Analysis of the Detachment Front in a Divertor Plasma: Roles of the Cross-Field Transport

Makoto NAKAMURA; Satoshi TOGO; Masanori ITO; Yuichi OGAWA

doi:10.1585/pfr.6.2403098

Regular Articles

One-Dimensional Time Dependent Analysis of the Detachment Front in a Divertor Plasma: Roles of the Cross-Field Transport

Makoto NAKAMURA, Satoshi TOGO, Masanori ITO, Yuichi OGAWA

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Keywords: divertor detachment, detachment front, thermal stability, cross-field transport, one-dimensional model

JOURNAL FREE ACCESS

2011 Volume 6 Pages 2403098

DOI https://doi.org/10.1585/pfr.6.2403098

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Abstract

Results of one-dimensional time dependent analysis of a detachment front in a PDD plasma are reported. Effects of the cross-field particle and energy trasport in a divertor region on a partially detached plasma are particularly discussed. It was found that such transport effects in the divertor region can prevent the detachment fronts from moving upstream, and that the position of the detachment front in a steady state is thermally unstable against the neutral density in the divertor region.

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