WFRF:(Dittmar M.)
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Laser-based and thermal methods for fuel removal and cleaning of plasma-facing components
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- Ivanova, Darya (author)
- KTH,Fusionsplasmafysik
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- Rubel, Marek J. (author)
- KTH,Fusionsplasmafysik
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- Philipps, V. (author)
- Institute for Energy Research, Forschungszentrum Jülich, Association EURATOM-FZJ, Germany
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- (creator_code:org_t)
- Elsevier BV, 2011
- 2011
- English.
- In: Journal of Nuclear Materials. - : Elsevier BV. - 0022-3115 .- 1873-4820. ; 415:1, s. S801-S804
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The efficiency of two methods for in-situ fuel removal has been tested on carbon and tungsten limiters retrieved from the TEXTOR and Tore Supra tokamaks: laser-inducedablation of co-deposits and annealing in vacuum at elevated temperature. The analyses of gas phase and surfaces performed with thermal desorption spectrometry, optical spectroscopy, ion beam analysis, surface profilometry and microscopy methods have shown: (i) the ablation leads to the generation of dust particles of 50 nm – 2μm; (ii) volatile products of ablation undergo condensation on surrounding surfaces; (iii) D/C ratio in such condensate is in the range 0.02-0.03; (iv) long-term annealing of 623 K for 70 hours results in release of not more ~10 % of deuterium accumulated in plasma-facing components; (v) effective removal is reached by heating to 900-1300 K.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- carbon
- ´first wall materials
- hydrogen
- laser
- tungsten
- Plasma physics
- Plasmafysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Ivanova, Darya
- Rubel, Marek J.
- Philipps, V.
- Schweer, B.
- Freisinger, M.
- Huber, A.
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- Gierse, N.
- Penkalla, H.
- Petersson, Per
- Dittmar, T.
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- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- and Fusion Plasma an ...
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- NATURAL SCIENCES
- and Physical Science ...
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- By the university
- Royal Institute of Technology
- Uppsala University
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