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Collisionality dependence and ion species effects on heat transport in He and H plasma, and the role of ion scale turbulence in LHD

Tanaka, K.; Nagaoka, Kenichi; Murakami, S.; Takahashi, H.; Osakabe, M.; Yokoyama, M.; Seki, R.; Michael, Clive; Yamaguchi, H.; Suzuki, C.; Shimizu, A.


Surveys of the ion and electron heat transports of neutral beam (NB) heating plasma were carried out by power balance analysis in He and H rich plasma at LHD. Collisionality was scanned by changing density and heating power. The characteristics of the transport vary depending on collisionality. In low collisionality, with low density and high heating power, an ion internal transport barrier (ITB) was formed. The ion heat conductivity (χ i) is lower than electron heat conductivity (χ e) in the...[Show more]

CollectionsANU Research Publications
Date published: 2017-08-01
Type: Journal article
Source: Nuclear Fusion
DOI: 10.1088/1741-4326/aa79c6


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