Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade

M. Mayer (Corresponding Author), V. Rohde, K. Sugiyama, J. L. Chen, X. Gong, C. Hopf, Jari Likonen, S. Lindig, R. Neu, G. Ramos, E. Vainonen-Ahlgren, A. Wiltner, ASDEX Upgrade Team

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Abstract

The evolution of carbon/boron deposition and the deuterium inventory were determined during the transition from a carbon dominated to a full tungsten ASDEX Upgrade. In the carbon dominated machine about 17 g of carbon were deposited at the inner divertor and in remote areas during one standard discharge campaign. Main carbon sources were the ICRH antennae protection limiters in the main chamber. After coating these limiters with tungsten the carbon deposition decreased to 3–5 g. The remaining carbon originated mainly from erosion at the outer divertor strike point. Transition to a full tungsten machine resulted in a further decrease of the carbon deposition to about 1 g. 1.3–1.7 g deuterium was trapped in codeposited carbon/boron layers in the divertor and in remote areas during the carbon dominated campaigns. The deuterium inventory decreased to 0.16–0.24 g in the full tungsten machine.
Original languageEnglish
Pages (from-to)538-543
Number of pages6
JournalJournal of Nuclear Materials
Volume390-391
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed
Event18th International Conference on Plasma-Surface Interactions in Controlled Fusion Device, 26-30 May 2008, Toledo, Spain -
Duration: 1 Jan 2009 → …

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Tungsten
Deuterium
deuterium
tungsten
Carbon
carbon
Boron
Limiters
boron
erosion
coating
Erosion
antennas
chambers
Antennas
Coatings

Cite this

Mayer, M., Rohde, V., Sugiyama, K., Chen, J. L., Gong, X., Hopf, C., ... Team, ASDEX. U. (2009). Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade. Journal of Nuclear Materials, 390-391, 538-543. https://doi.org/10.1016/j.jnucmat.2009.01.087
Mayer, M. ; Rohde, V. ; Sugiyama, K. ; Chen, J. L. ; Gong, X. ; Hopf, C. ; Likonen, Jari ; Lindig, S. ; Neu, R. ; Ramos, G. ; Vainonen-Ahlgren, E. ; Wiltner, A. ; Team, ASDEX Upgrade. / Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade. In: Journal of Nuclear Materials. 2009 ; Vol. 390-391. pp. 538-543.
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abstract = "The evolution of carbon/boron deposition and the deuterium inventory were determined during the transition from a carbon dominated to a full tungsten ASDEX Upgrade. In the carbon dominated machine about 17 g of carbon were deposited at the inner divertor and in remote areas during one standard discharge campaign. Main carbon sources were the ICRH antennae protection limiters in the main chamber. After coating these limiters with tungsten the carbon deposition decreased to 3–5 g. The remaining carbon originated mainly from erosion at the outer divertor strike point. Transition to a full tungsten machine resulted in a further decrease of the carbon deposition to about 1 g. 1.3–1.7 g deuterium was trapped in codeposited carbon/boron layers in the divertor and in remote areas during the carbon dominated campaigns. The deuterium inventory decreased to 0.16–0.24 g in the full tungsten machine.",
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Mayer, M, Rohde, V, Sugiyama, K, Chen, JL, Gong, X, Hopf, C, Likonen, J, Lindig, S, Neu, R, Ramos, G, Vainonen-Ahlgren, E, Wiltner, A & Team, ASDEXU 2009, 'Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade', Journal of Nuclear Materials, vol. 390-391, pp. 538-543. https://doi.org/10.1016/j.jnucmat.2009.01.087

Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade. / Mayer, M. (Corresponding Author); Rohde, V.; Sugiyama, K.; Chen, J. L.; Gong, X.; Hopf, C.; Likonen, Jari; Lindig, S.; Neu, R.; Ramos, G.; Vainonen-Ahlgren, E.; Wiltner, A.; Team, ASDEX Upgrade.

In: Journal of Nuclear Materials, Vol. 390-391, 2009, p. 538-543.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade

AU - Mayer, M.

AU - Rohde, V.

AU - Sugiyama, K.

AU - Chen, J. L.

AU - Gong, X.

AU - Hopf, C.

AU - Likonen, Jari

AU - Lindig, S.

AU - Neu, R.

AU - Ramos, G.

AU - Vainonen-Ahlgren, E.

AU - Wiltner, A.

AU - Team, ASDEX Upgrade

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AB - The evolution of carbon/boron deposition and the deuterium inventory were determined during the transition from a carbon dominated to a full tungsten ASDEX Upgrade. In the carbon dominated machine about 17 g of carbon were deposited at the inner divertor and in remote areas during one standard discharge campaign. Main carbon sources were the ICRH antennae protection limiters in the main chamber. After coating these limiters with tungsten the carbon deposition decreased to 3–5 g. The remaining carbon originated mainly from erosion at the outer divertor strike point. Transition to a full tungsten machine resulted in a further decrease of the carbon deposition to about 1 g. 1.3–1.7 g deuterium was trapped in codeposited carbon/boron layers in the divertor and in remote areas during the carbon dominated campaigns. The deuterium inventory decreased to 0.16–0.24 g in the full tungsten machine.

U2 - 10.1016/j.jnucmat.2009.01.087

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