This title appears in the Scientific Report :
2003
Please use the identifier:
http://dx.doi.org/10.1238/Physica.Topical.103a00059 in citations.
Testing of tungsten and tantalum limiters at the TEXTOR tokamak: Material performance and deuterium retention
Testing of tungsten and tantalum limiters at the TEXTOR tokamak: Material performance and deuterium retention
Tungsten and tantaium were examined in the TEXTOR tokamak as test limiters in order to compare their performance under plasma operation and to recognise fuel recycling on endothermic (W) and exothermic (Ta) hydrogen absorbers. Differences have been noticed in the distribution and microstructure of c...
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Personal Name(s): | Hirai, T. |
---|---|
Rubel, M. / Philipps, V. / Huber, A. / Tanabe, T. / Wada, M. / Ohgo, T. | |
Contributing Institute: |
Institut für Plasmaphysik; IPP Werkstoffstruktur und Eigenschaften; IWV-2 |
Published in: | Physica scripta, T103 (2003) S. 59 - 62 |
Imprint: |
Bristol
IoP Publ.
2003
|
Physical Description: |
59 - 62 |
DOI: |
10.1238/Physica.Topical.103a00059 |
Document Type: |
Journal Article |
Research Program: |
Kernfusion und Plasmaforschung |
Series Title: |
Physica Scripta Topical Issue
103 |
Subject (ZB): | |
Publikationsportal JuSER |
Tungsten and tantaium were examined in the TEXTOR tokamak as test limiters in order to compare their performance under plasma operation and to recognise fuel recycling on endothermic (W) and exothermic (Ta) hydrogen absorbers. Differences have been noticed in the distribution and microstructure of co-deposits. in the fuel inventory in the bulk of metals and, in the deuterium release mechanism (ratio of molecules to atoms). As a result of poor thermal conductivity. the surface temperature of Ta during the power deposition was higher than that of W and it increased shot-by-shot because of the degradation of thermal properties due to surface modification. Results on thermal response, fuel recycling and inventory show that. as a candidate material for plasma facing components. tungsten is superior to tantalum. |