This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2009.01.108 in citations.
In-situ detection of hydrogen retention in TEXTOR by laser-induced desorption
In-situ detection of hydrogen retention in TEXTOR by laser-induced desorption
Long term tritium retention is one of the most critical issues for ITER and future fusion devices. While a global analysis of the T retention can be made by T accountancy in the activated phase of ITER, fuel retention and control must be already addressed in the non-activated phase, to identify the...
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Personal Name(s): | Schweer, B. |
---|---|
Irrek, F. / Huber, A. / Sergienko, G. / Brezinsek, S. / Philipps, V. / Samm, U. | |
Contributing Institute: |
Plasmaphysik; IEF-4 JARA-ENERGY; JARA-ENERGY |
Published in: | Journal of nuclear materials, 390-391 (2009) |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2009
|
DOI: |
10.1016/j.jnucmat.2009.01.108 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Journal of Nuclear Materials
390-391 |
Subject (ZB): | |
Publikationsportal JuSER |
Long term tritium retention is one of the most critical issues for ITER and future fusion devices. While a global analysis of the T retention can be made by T accountancy in the activated phase of ITER, fuel retention and control must be already addressed in the non-activated phase, to identify the mechanism, location and amount of retention, its dependence on plasma and wall conditions and to qualify T retention mitigation and control techniques. For this purpose a new diagnostic, laser induced desorption spectroscopy of retained fuel has been developed and. applied in TEXTOR. Hydrogen isotopes are desorbed from re-deposited layers on graphite plates by rapid heating with laser radiation. The released particles have been quantified in situ by spectroscopic measurements of hydrogen lines in a tokamak plasma. The results were validated by ex Situ analysis of the hydrogen content of deposited a-C:H layers. (C) 2009 Elsevier B.V. All rights reserved. |