Boronization with trimethylboron in the reversed field pinch RFX
| Autor: | Lionello Marrelli, Piergiorgio Sonato, M. Valisa, G. Della Mea, W.R. Baker, A. Murari, L. Tramontin, V. Antoni, S. Zandolin, L. Carraro, A. Buffa, S. Costa, R. Bertoncello, V. Rigato, M. E. Puiatti, P. Scarin |
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| Rok vydání: | 1996 |
| Předmět: |
Nuclear and High Energy Physics
Glow discharge Electron density Reversed field pinch Hydrogen Chemistry Analytical chemistry chemistry.chemical_element Plasma TDEV Nuclear Energy and Engineering Beta (plasma physics) TOKAMAK Electron temperature General Materials Science INITIAL BORONIZATION TEXTOR Thin film |
| Zdroj: | Journal of nuclear materials 227 (1996): 259–265. doi:10.1016/0022-3115(95)00161-1 info:cnr-pdr/source/autori:Sonato P.; Antoni V.; Baker WR.; Bertoncello R.; Buffa A.; Carraro L.; Costa S.; Della Mea G.; Marrelli L.; Murari A.; Puiatti M.E.; Rigato V.; Scarin P.; Tramontin L.; Valisa M.; Zandolin S./titolo:Boronization with trimethylboron in the reversed field pinch RFX/doi:10.1016%2F0022-3115(95)00161-1/rivista:Journal of nuclear materials/anno:1996/pagina_da:259/pagina_a:265/intervallo_pagine:259–265/volume:227 Journal of nuclear materials 27 (1996): 259–265. doi:10.1016/0022-3115(95)00161-1 info:cnr-pdr/source/autori:P. Sonato a,., V. Antoni a, W.R. Baker a, R. BertonceUo b, A. Buffa a, L. Carraro a, S. Costa a, G. Della Mea c, L. Marrelli a, A. Murari a, M.E. Puiatti a, V. Rigato c, P. Scarin a, L. Tramontin a, M. Valisa a, S. Zandolin c/titolo:Boronization with trimethylboron in the reversed field pinch RFX/doi:10.1016%2F0022-3115(95)00161-1/rivista:Journal of nuclear materials/anno:1996/pagina_da:259/pagina_a:265/intervallo_pagine:259–265/volume:27 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/0022-3115(95)00161-1 |
| Popis: | The first wall and the vessel of the Reversed Field Pinch RFX has been in situ coated with a B/C:H film by glow discharge cleaning with a mixture of 12.5% of trimethylboron ((CH3)(3)B) in He. The film has been analysed and the effects on the plasma discharges of the boronized wall are reported for a plasma current of 520 kA. The main effects on the plasma are a reduction in the oxygen content by a factor of 5 to 10 and a decrease in the carbon content by a factor of two. The Z(eff) has been reduced from 2-2.5 to 1.4-1.5. A slight reduction of the loop voltage is observed. The radiation power decreases by a factor of 2, enhancing the high density operation limit with a consequent increase of the poloidal beta beta(theta) and of the energy confinement time tau(E). |
| Databáze: | OpenAIRE |
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