Study of helium transport in HL-1M edge plasma region
| Autor: | J.L. Luo, E.Y. Wang, Min Wang, B.Q. Deng, S.J. Qian, S.K. Yang, L.L. Peng |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Nuclear and High Energy Physics
Glow discharge Hydrogen chemistry.chemical_element Plasma Nuclear Energy and Engineering chemistry Physics::Plasma Physics Physics::Atomic and Molecular Clusters Limiter General Materials Science Plasma diagnostics Physics::Atomic Physics Graphite Atomic physics Helium Line (formation) |
| Zdroj: | Journal of Nuclear Materials. :883-886 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/s0022-3115(97)80159-6 |
| Popis: | Radial profiles of the emission intensity for H α and neutral helium line ( λ = 5875.7 A ) are measured to study helium transport and recycling in the HL-1M edge region in the vicinity of the poloidal graphite limiter (at r = 26 cm ) after previous helium glow discharge cleaning and boronization under different LHCD and ECH conditions. A one-dimensional Monte Carlo neutral helium transport code, 1DHET, is utilized to calculate neutral helium density profile in the same region. The comparisons show that the freshly boronized wall with helium glow discharge cleaning exhibits somewhat selective recycling characteristics between the helium and hydrogen atoms, if ECH power is not applied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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