Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10727929 | Physics Letters A | 2005 | 6 Pages |
Abstract
Lower hybrid current drive (LHCD) plasmas in the presence of DC electric filed have been investigated based on Karney-Fisch theory in the HT-7 tokamak. The relatively small scatter in the experimental data with various values of waveguide phasing and lower hybrid power, when plotted in the Karney-Fisch diagram, confirms that a reasonable theoretical interpretation is possible for the HT-7 data. The full non-inductively current drive efficiencies are obtained by fitting the experimental data to the theoretical curve. The efficiency strongly depends on the lower hybrid wave phase velocity.
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Authors
Z.Y. Chen, B.N. Wan, Y.J. Shi, S.Y. Lin, L.Q. Hu, M. Asif,