The deuterium inventory in ASDEX Upgrade

M. Mayer (Corresponding Author), V. Rohde, G. Ramos, Elizaveta Vainonen-Ahlgren, Jari Likonen, A. Herrmann, R. Neu, ASDEX Upgrade Team

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Abstract

The deuterium inventory in ASDEX Upgrade was determined by quantitative ion beam analysis techniques and SIMS for different discharge campaigns between the years 2002 and 2005. ASDEX Upgrade was a carbon dominated machine during this phase. Full poloidal sections of the lower and upper divertor tile surfaces, limiter tiles, gaps between divertor tiles, gaps between inner heat shield tiles and samples from remote areas below the roof baffle and in pump ducts were analysed, thus offering an exhaustive survey of all relevant areas in ASDEX Upgrade. Deuterium is mainly trapped on plasma-exposed surfaces of inner divertor tiles, where about 70% of the retained deuterium inventory is found. About 20% of the inventory is retained at or below the divertor roof baffle, and about 10% is observed in other areas, such as the outer divertor and in gaps between tiles. The long term deuterium retention is 3–4% of the total deuterium input. The obtained results are compared with gas balance measurements, and conclusions about tritium retention in ITER are made.
Original languageEnglish
Pages (from-to)1607-1617
JournalNuclear Fusion
Volume47
Issue number11
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

tiles
deuterium
baffles
roofs
tritium
ducts
secondary ion mass spectrometry
ion beams
pumps
heat
carbon
gases

Keywords

  • ASDEX upgrade
  • deuterium
  • deuterium inventory
  • ITER
  • fusion energy
  • fusion reactors
  • plasma

Cite this

Mayer, M., Rohde, V., Ramos, G., Vainonen-Ahlgren, E., Likonen, J., Herrmann, A., ... Team, ASDEX. U. (2007). The deuterium inventory in ASDEX Upgrade. Nuclear Fusion, 47(11), 1607-1617. https://doi.org/10.1088/0029-5515/47/11/024
Mayer, M. ; Rohde, V. ; Ramos, G. ; Vainonen-Ahlgren, Elizaveta ; Likonen, Jari ; Herrmann, A. ; Neu, R. ; Team, ASDEX Upgrade. / The deuterium inventory in ASDEX Upgrade. In: Nuclear Fusion. 2007 ; Vol. 47, No. 11. pp. 1607-1617.
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Mayer, M, Rohde, V, Ramos, G, Vainonen-Ahlgren, E, Likonen, J, Herrmann, A, Neu, R & Team, ASDEXU 2007, 'The deuterium inventory in ASDEX Upgrade', Nuclear Fusion, vol. 47, no. 11, pp. 1607-1617. https://doi.org/10.1088/0029-5515/47/11/024

The deuterium inventory in ASDEX Upgrade. / Mayer, M. (Corresponding Author); Rohde, V.; Ramos, G.; Vainonen-Ahlgren, Elizaveta; Likonen, Jari; Herrmann, A.; Neu, R.; Team, ASDEX Upgrade.

In: Nuclear Fusion, Vol. 47, No. 11, 2007, p. 1607-1617.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Mayer, M.

AU - Rohde, V.

AU - Ramos, G.

AU - Vainonen-Ahlgren, Elizaveta

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AU - Neu, R.

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Mayer M, Rohde V, Ramos G, Vainonen-Ahlgren E, Likonen J, Herrmann A et al. The deuterium inventory in ASDEX Upgrade. Nuclear Fusion. 2007;47(11):1607-1617. https://doi.org/10.1088/0029-5515/47/11/024