Abstract
Monte Carlo neutral transport simulations of hydrogen velocities in the Tokamak Fusion Test Reactor (TFTR) [K. M. McGuire et al., Phys. Plasmas 2, 2176 (1995)] are compared with experiment using the Doppler-broadened Balmer-α 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 et al., J. Comput. Phys. 46, 309 (1982)]. A residual deficiency of 10-100 eV neutrals in most of the simulations indicates that further study of the energetics of H2+ dissociation for electron energies in excess of 100 eV is needed.
Original language | English (US) |
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Pages (from-to) | 4084-4094 |
Number of pages | 11 |
Journal | Physics of Plasmas |
Volume | 3 |
Issue number | 11 |
DOIs | |
State | Published - 1996 |
ASJC Scopus subject areas
- Condensed Matter Physics