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Author Stotler, D. P. ♦ Skinner, C. H. ♦ Budny, R. V. ♦ Ramsey, A. T. ♦ Ruzic, D. N. ♦ Turkot, R. B. (Jr.)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ TFTR TOKAMAK ♦ PLASMA SIMULATION ♦ HYDROGEN ♦ MONTE CARLO METHOD ♦ BALMER LINES ♦ FABRY-PEROT INTERFEROMETER ♦ LIMITERS ♦ DOPPLER BROADENING ♦ DISSOCIATION ♦ CHARGE EXCHANGE
Abstract Monte Carlo neutral transport simulations of hydrogen velocities in the Tokamak Fusion Test Reactor (TFTR) [K. M. McGuire {ital et} {ital al}., Phys. Plasmas {bold 2}, 2176 (1995)] are compared with experiment using the Doppler-broadened Balmer-{alpha} spectral line profile. Good agreement is obtained under a range of conditions, validating the treatment of charge exchange, molecular dissociation, surface reflection, and sputtering in the neutral gas code DEGAS [D. Heifetz {ital et} {ital al}., J. Comput. Phys. {bold 46}, 309 (1982)]. A residual deficiency of 10{endash}100 eV neutrals in most of the simulations indicates that further study of the energetics of H{sup +}{sub 2} dissociation for electron energies in excess of 100 eV is needed. {copyright} {ital 1996 American Institute of Physics.}
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-11-01
Publisher Department Princeton Plasma Physics Laboratory
Publisher Place United States
Journal Physics of Plasmas
Volume Number 3
Issue Number 11
Organization Princeton Plasma Physics Laboratory


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