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Comparison of impurity production, recycling and power deposition on carbon and tungsten limiters in TEXTOR-94
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2001 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 290, 276-280 p.Article in journal (Refereed) Published
Abstract [en]

Impurity production, hydrogen recycling and power deposition on carbon and tungsten limiters have been investigated in TEXTOR-94 using a C-W twin test limiter. Considerable differences have been observed on W and C surfaces, which can be explained by the different particle and energy reflection coefficients of hydrogen on these surfaces. The measurements show in addition that the majority of the carbon release is from recycled carbon and that only a small part (below 10%) is due to net-erosion from the bulk carbon material. The heat deposition on C and W sides differs under the same plasma conditions significantly and is typically about 30% larger on the cal bon surface. The behaviour of the impurity production: recycling and power deposition for various discharge conditions is presented.

Place, publisher, year, edition, pages
2001. Vol. 290, 276-280 p.
Keyword [en]
carbon, carbon erosion, impurity, power deposition, recycling, spectroscopy, tungsten, TEXTOR 94, temperature
Identifiers
URN: urn:nbn:se:kth:diva-20468DOI: 10.1016/S0022-3115(00)00629-2ISI: 000167676700055OAI: oai:DiVA.org:kth-20468DiVA: diva2:339163
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Rubel, Marek J.

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