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

M. Mayer; V. Rohde; J.L., Gong, X. Chen; C. Hopf; Jari Likonen; S. Linding; R. Neu; G. Ramos; K. Sugiyama; E. Vainonen-Ahlgren; ASDEX Upgrade Team

doi:10.1016/j.jnucmat.2009.01.087

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

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

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

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 language	English
Pages (from-to)	538-543
Journal	Journal of Nuclear Materials
Volume	390-391
DOIs	https://doi.org/10.1016/j.jnucmat.2009.01.087
Publication status	Published - Jun 2009
MoE publication type	A4 Article in a conference publication
Event	18th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI18 - Toledo, Spain Duration: 26 May 2008 → 30 May 2008

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10.1016/j.jnucmat.2009.01.087

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@article{3921be8919904c269b27e77470053359,

title = "Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade",

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.",

author = "M. Mayer and V. Rohde and Chen, {J.L., Gong, X.} and C. Hopf and Jari Likonen and S. Linding and R. Neu and G. Ramos and K. Sugiyama and E. Vainonen-Ahlgren and {ASDEX Upgrade Team}",

year = "2009",

month = jun,

doi = "10.1016/j.jnucmat.2009.01.087",

language = "English",

volume = "390-391",

pages = "538--543",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

note = "18th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI18, PSI18 ; Conference date: 26-05-2008 Through 30-05-2008",

}

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 - Chen, J.L., Gong, X.

AU - Hopf, C.

AU - Likonen, Jari

AU - Linding, S.

AU - Neu, R.

AU - Ramos, G.

AU - Sugiyama, K.

AU - Vainonen-Ahlgren, E.

AU - ASDEX Upgrade Team

PY - 2009/6

Y1 - 2009/6

N2 - 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.

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

DO - 10.1016/j.jnucmat.2009.01.087

M3 - Article in a proceedings journal

SN - 0022-3115

VL - 390-391

SP - 538

EP - 543

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

T2 - 18th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI18

Y2 - 26 May 2008 through 30 May 2008

ER -

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

Abstract

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