Analysis of High-Te Plasmas Heated by HHFW in NSTX
Authors: B.P. LeBlanc, R.E. Bell, P. Bonoli, J.C. Hosea, E. Mazzucato, C.K. Phillips, A.L. Roquemore, P.M. Ryan, G. Taylor, J.R. Wilson, H. Yuh
Abstract:
The implementation in TRANSP of a recent version of TORIC capable of calculating power deposition for HHFW conditions is used to analyze NSTX plasma under different operating conditions. The power deposition profile into the electrons is obtained for high-Te conditions - Te ≤ 5keV - obtained in He and D plasmas with ITB. HHFW heating of NBI-induced H-mode plasmas is discussed. At the RF onset the RF power is divided evenly between the electrons and the fast particles, but as the latter thermalize and the electron density increases, the HHFW power repartition shifts progressively toward the electrons. Power deposition profiles for the electrons and for the fast particles are shown.
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Presented at: 18th Topical Conference on Radio Frequency Power in Plasmas, Ghent, Belgium (June 24-29, 2009)
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Download PPPL-4421 (pdf 524 KB 5 pp)
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