Plasma surface interaction with tungsten in ASDEX Upgrade

R. Dux; A. Herrmann; A. Kallenbach; R. Neu; J. Neuhauser; H. Maier; R. Pugno; T. Pütterich; V. Rohde

doi:10.1016/j.jnucmat.2004.10.105

Plasma surface interaction with tungsten in ASDEX Upgrade

R. Dux, A. Herrmann, A. Kallenbach, R. Neu, J. Neuhauser, H. Maier, R. Pugno, T. Pütterich, V. Rohde

Max Planck Institute for Plasma Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

ASDEX Upgrade pursues the progressive increase of W coated plasma facing components. At present, the central column, the upper passive stabiliser loop, the complete upper divertor, the baffles at the lower divertor, as well as six tiles of one guard limiter at the low field side are W coated, representing about 65% of the total surface area. W erosion at these guard limiter tiles exceeds the erosion found at other main chamber components by more than one order of magnitude, and spectroscopically determined erosion yields indicate a strong contribution from fast particles. Upper single null discharges do not show an obviously increased W content compared to discharges run in the lower C based divertor.

Original language	English
Pages (from-to)	852-856
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	337-339
Issue number	1-3 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jnucmat.2004.10.105
State	Published - 1 Mar 2005
Externally published	Yes

Keywords

ASDEX Upgrade
Erosion
First wall materials
Tungsten

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10.1016/j.jnucmat.2004.10.105

Cite this

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title = "Plasma surface interaction with tungsten in ASDEX Upgrade",

abstract = "ASDEX Upgrade pursues the progressive increase of W coated plasma facing components. At present, the central column, the upper passive stabiliser loop, the complete upper divertor, the baffles at the lower divertor, as well as six tiles of one guard limiter at the low field side are W coated, representing about 65% of the total surface area. W erosion at these guard limiter tiles exceeds the erosion found at other main chamber components by more than one order of magnitude, and spectroscopically determined erosion yields indicate a strong contribution from fast particles. Upper single null discharges do not show an obviously increased W content compared to discharges run in the lower C based divertor.",

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T1 - Plasma surface interaction with tungsten in ASDEX Upgrade

AU - Dux, R.

AU - Herrmann, A.

AU - Kallenbach, A.

AU - Neu, R.

AU - Neuhauser, J.

AU - Maier, H.

AU - Pugno, R.

AU - Pütterich, T.

AU - Rohde, V.

PY - 2005/3/1

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AB - ASDEX Upgrade pursues the progressive increase of W coated plasma facing components. At present, the central column, the upper passive stabiliser loop, the complete upper divertor, the baffles at the lower divertor, as well as six tiles of one guard limiter at the low field side are W coated, representing about 65% of the total surface area. W erosion at these guard limiter tiles exceeds the erosion found at other main chamber components by more than one order of magnitude, and spectroscopically determined erosion yields indicate a strong contribution from fast particles. Upper single null discharges do not show an obviously increased W content compared to discharges run in the lower C based divertor.

KW - ASDEX Upgrade

KW - Erosion

KW - First wall materials

KW - Tungsten

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ER -

Plasma surface interaction with tungsten in ASDEX Upgrade

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Keywords

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