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In-situ measurements of carbon and deuterium deposition using the fast reciprocating probe in TEXTOR
KTH, Skolan för informations- och kommunikationsteknik (ICT), Mikroelektronik och Informationsteknik, IMIT.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Mikroelektronik och Informationsteknik, IMIT.ORCID-id: 0000-0002-8760-1137
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2009 (Engelska)Ingår i: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 390-91, s. 179-182Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Silicon samples were exposed in the scrape-off layer of the TEXTOR plasma using a fast reciprocating probe, with the aim of studying carbon deposition and deuterium retention during Dynamic Ergodic Divertor (DED) operation. Separate samples were exposed for 300 ms at the flat-top phase of neutral beam heated discharges. The exposure conditions were varied on a shot-to-shot basis by external magnetic perturbations generated by the DED in the m/n = 3/1, DC regime, base configuration. Nuclear Reaction Analysis (NRA) was used to characterise collector sample surfaces after their exposure. Enhanced concentrations of both carbon and deuterium (C 3-10 x 10(16) at./cm(2), D 8-60 x 10(15) at./cm(2)) were found. The D/C ratio was less than unity which indicates that most of the carbon and deuterium were co-deposited. Carbon e-folding lengths of about 2 cm were found on both toroidal sides of the probe independent of DED perturbations.

Ort, förlag, år, upplaga, sidor
2009. Vol. 390-91, s. 179-182
Nyckelord [en]
SCRAPE-OFF PLASMA, FLUXES, COLLECTION, TRANSPORT, TOKAMAK, LAYER; EDGE
Nationell ämneskategori
Fusion, plasma och rymdfysik
Identifikatorer
URN: urn:nbn:se:kth:diva-25578DOI: 10.1016/j.jnucmat.2009.01.162ISI: 000267747300041Scopus ID: 2-s2.0-67349159909OAI: oai:DiVA.org:kth-25578DiVA, id: diva2:370861
Konferens
18th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices
Anmärkning
QC 20101118Tillgänglig från: 2010-11-18 Skapad: 2010-10-27 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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Hallén, AndersRubel, Marek J.

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Emmoth, BirgerHallén, AndersRubel, Marek J.Sundelin, Per
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Mikroelektronik och Informationsteknik, IMITFusionsplasmafysik
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Journal of Nuclear Materials
Fusion, plasma och rymdfysik

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