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Global Alfvén eigenmodes in the H-1 heliac

Hole, Matthew; Blackwell, B D; Bowden, G; Cole, M; Könies, A; Michael, Clive; Zhao, F; Haskey, S R


Recent upgrades in H-1 power supplies have enabled the operation of the H-1 experiment at higher heating powers than previously attainable. A heating power scan in mixed hydrogen/helium plasmas reveals a change in mode activity with increasing heating power. At low power (<50 kW) modes with beta-induced Alfvén eigenmode frequency scaling are observed. At higher power modes consistent with an analysis of nonconventional global Alfvén eigenmodes (GAEs) are observed, the subject of this work....[Show more]

CollectionsANU Research Publications
Date published: 2017-10-25
Type: Journal article
Source: Plasma Physics and Controlled Fusion
DOI: 10.1088/1361-6587/aa8bdf
Access Rights: Open Access


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