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

Rosenberg, A. ; Menard, J.E. ; and LeBlanc, B.P.

Princeton University. Plasma Physics Laboratory.

关键词: Heating;    Nstx Device;    70 Plasma Physics And Fusion Technology;    Computerized Simulation;    Dielectric Materials;   

DOI  :  10.2172/784551
RP-ID  :  PPPL-3565
RP-ID  :  AC02-76CH03073
RP-ID  :  784551

美国|英语

来源: UNT Digital Library

【 摘 要 】

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.