| Autor: |
R.A. Moyer, Dean A. Buchenauer, R.B. Campbell, J.W. Cuthbertson, A.W. Leonard, M.A. Mahdavi, A. Futch, D. N. Hill, T.W. Petrie, J.G. Watkins |
| Rok vydání: |
1992 |
| Předmět: |
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| Zdroj: |
Journal of Nuclear Materials. :204-209 |
| ISSN: |
0022-3115 |
| DOI: |
10.1016/s0022-3115(06)80032-2 |
| Popis: |
In this paper we report results of scaling studies aimed at determining how the divertor conditions vary with plasma current, toroidal field, and neutral beam heating power in H-mode discharges with ELMs in the DIII-D tokamak. We find that ELMs produce relatively more direct particle losses (50% or more of the total) than energy losses (≤20%). The time-average peak divertor heat flux in these plasmas is found to scale as d α ( P NBI I p )( B p,mp / B p,div ). The linear power dependence suggests that the plasma sheath at the targets is primarily responsible for limiting the parallel energy flow, while the I p variation may mean that the radial energy transport in the SOL decreases with increasing plasma current, just as it does in the core. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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