Helium transport and exhaust studies of H-mode discharges in the DIII-D tokamak
| العنوان: | Helium transport and exhaust studies of H-mode discharges in the DIII-D tokamak |
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| المؤلفون: | N.H. Brooks, P.K. Mioduszewski, J.T. Hogan, W.P. West, D. L. Hillis, G.L. Jackson, M. M. Menon, K. H. Burrell, D.F. Finkenthal, M.A. Mahdavi, M. R. Wade, C. Christopher Klepper, R. Maingi |
| المصدر: | Plasma Physics and Controlled Fusion. 36:A171-A176 |
| بيانات النشر: | IOP Publishing, 1994. |
| سنة النشر: | 1994 |
| مصطلحات موضوعية: | Tokamak, Materials science, DIII-D, Divertor, chemistry.chemical_element, Plasma, Fusion power, Condensed Matter Physics, law.invention, Nuclear Energy and Engineering, chemistry, law, Impurity, Atomic physics, Spectroscopy, Helium |
| الوصف: | A collaborative program has been initiated on DIII-D to study helium (He) transport and exhaust in H-mode plasmas. To simulate the presence of He ash in DIII-D, a 50 ms He puff is injected into a DIII-D plasma, resulting in a He concentration of approximately 15%. The time dependence of the He density profiles in the plasma core is measured with charge-exchange recombination spectroscopy and the He spatial distribution on the divertor floor is studied with an impurity monitor array. The dependence of core transport diffusivities as a function of edge-localized modes (ELM) frequency has been studied and the first demonstration made of He exhaust from an ELMing H-mode plasma in a diverted tokamak. A measured value of tau *He/ tau E of 14 was obtained, which is within the acceptable range for a fusion reactor. |
| تدمد: | 1361-6587 0741-3335 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::43783091d208f23f10830f4dae355537 https://doi.org/10.1088/0741-3335/36/7a/023 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........43783091d208f23f10830f4dae355537 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616587 07413335 |
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