Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Structure, tritium depth profile and desorption from 'plasma-facing' beryllium materials of ITER-Like-Wall at JET
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Show others and affiliations
Number of Authors: 11112017 (English)In: Nuclear Materials and Energy, E-ISSN 2352-1791, Vol. 12, p. 642-647Article in journal (Refereed) Published
Abstract [en]

Tritium depth profile and its temperature programmed desorption rate were determined for selected samples cut out of beryllium tiles removed from the Joint European Torus vacuum vessel during the 2012 shut down. A beryllium dissolution method under controlled conditions was used to determine the tritium depth profile in the samples, whereas temperature programmed desorption experiments were performed to assess tritium release pattern. Released tritium was measured using a proportional gas flow detector. Prior to desorption and dissolution experiments, the plasma-facing surfaces of the samples were studied by scanning electron microscopy and energy dispersive X-ray spectroscopy. Experimental results revealed that >95% of the tritium was localized in the top 30 - 45 mu m of the 'plasma-facing' surface, however, possible tritium presence up to 100 mu m cannot be excluded. During temperature programmed desorption at 4.8 K/min in the flow of purge gas He + 0.1% H-2 the tritium release started below 475 K, the most intense release occurred at 725 - 915 K and the degree of detritiation of > 91% can be obtained upon reaching 1075 K. The total tritium activity in the samples was in range of 2 - 32 kilo Becquerel per square centimetre of the plasma-facing surface area. (C) 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.

Place, publisher, year, edition, pages
ELSEVIER , 2017. Vol. 12, p. 642-647
Keywords [en]
ITER-Like-Wall, Beryllium, Tritium, Fuel accumulation, Depth profile, Thermal desorption
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:uu:diva-398917DOI: 10.1016/j.nme.2017.03.017ISI: 000417293300103OAI: oai:DiVA.org:uu-398917DiVA, id: diva2:1379687
Note

For complete list of authors see http://dx.doi.org/10.1016/j.nme.2017.03.017

Available from: 2019-12-17 Created: 2019-12-17 Last updated: 2019-12-17Bibliographically approved

Open Access in DiVA

fulltext(1897 kB)9 downloads
File information
File name FULLTEXT01.pdfFile size 1897 kBChecksum SHA-512
6fda1fef8783cbd1c1d68c1d3ee7895b2f453fe70527e93269e99692115529e986ba753592fdee9d3e10594aca804c98767e9e0f8b3de9e5f214dfc2b91d07a5
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Andersson Sundén, ErikBinda, FedericoCecconello, MarcoConroy, SeanDzysiuk, NataliiaEricsson, GöranEriksson, JacobHellesen, CarlHjalmarsson, AndersPossnert, GöranSjöstrand, HenrikSkiba, MateuszWeiszflog, Matthias
By organisation
Applied Nuclear PhysicsTandem Laboratory
In the same journal
Nuclear Materials and Energy
Fusion, Plasma and Space Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 9 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 10 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf