This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2009.01.162 in citations.
In-situ measurements of carbon and deuterium deposition using he fast reciprocating probe in TEXTOR
In-situ measurements of carbon and deuterium deposition using he fast reciprocating probe in TEXTOR
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 be...
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Personal Name(s): | Emmoth, B. |
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Kreter, A. / Hallen, A. / Jakubowski, M. W. / Lehnen, M. / Litnovsky, A. / Petterson, P. / Philipps, V. / Possnert, G. / Rubel, M. / Schweer, B. / Sundelin, P. / Unterberg, B. / Wienhold, P. | |
Contributing Institute: |
Plasmaphysik; IEF-4 |
Published in: | Journal of nuclear materials, 390-391 (2009) S. 179 - 182 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2009
|
Physical Description: |
179 - 182 |
DOI: |
10.1016/j.jnucmat.2009.01.162 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Journal of Nuclear Materials
390-391 |
Subject (ZB): | |
Publikationsportal JuSER |
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. (C) 2009 Elsevier B.V. All rights reserved. |