Investigation of Ion Absorption of the High Harmonic Fast Wave in NSTX using HPRT

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Understanding high harmonic fast wave (HHFW) power absorption by ions in a spherical torus (ST) is of critical importance to assessing the wave's viability as a means of heating and especially driving current. In this work, the HPRT code is used to calculate absorption for helium and deuterium, with and without minority hydrogen in National Spherical Torus Experiment (NSTX) plasmas using experimental EFIT code equilibria and kinetic profiles. HPRT is a two-dimensional ray-tracing code which uses the full hot plasma dielectric to compute the perpendicular wave number along the hot electron and cold ion plasma ray path. Ion and electron ... continued below

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317 Kilobytes pages

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Rosenberg, A.; Menard, J.E. & and LeBlanc, B.P. May 18, 2001.

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Description

Understanding high harmonic fast wave (HHFW) power absorption by ions in a spherical torus (ST) is of critical importance to assessing the wave's viability as a means of heating and especially driving current. In this work, the HPRT code is used to calculate absorption for helium and deuterium, with and without minority hydrogen in National Spherical Torus Experiment (NSTX) plasmas using experimental EFIT code equilibria and kinetic profiles. HPRT is a two-dimensional ray-tracing code which uses the full hot plasma dielectric to compute the perpendicular wave number along the hot electron and cold ion plasma ray path. Ion and electron absorption dependence on antenna phasing, ion temperature, beta (subscript t), and minority temperature and concentration is analyzed. These results form the basis for comparisons with other codes, such as CURRAY, METS, TORIC, and AORSA.

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317 Kilobytes pages

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INIS; OSTI as DE00784551

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  • Other Information: PBD: 18 May 2001

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  • Report No.: PPPL-3565
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/784551 | External Link
  • Office of Scientific & Technical Information Report Number: 784551
  • Archival Resource Key: ark:/67531/metadc722203

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  • May 18, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 15, 2016, 9:25 p.m.

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Rosenberg, A.; Menard, J.E. & and LeBlanc, B.P. Investigation of Ion Absorption of the High Harmonic Fast Wave in NSTX using HPRT, report, May 18, 2001; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc722203/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.