Modeling of tungsten transport in the SOL for sources at the central column of 
ASDEX Upgrade using DIVIMP

Geier, A.; Krieger, K.; Elder, J. D.; Pugno, R.; Rohde, V.; ASDEX Upgrade Team,

doi:10.1016/S0022-3115(02)01519-2

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Modeling of tungsten transport in the SOL for sources at the central column of ASDEX Upgrade using DIVIMP

Geier, A., Krieger, K., Elder, J. D., Pugno, R., Rohde, V., & ASDEX Upgrade Team (2003). Modeling of tungsten transport in the SOL for sources at the central column of ASDEX Upgrade using DIVIMP. Journal of Nuclear Materials, 313-316, 1216-1220. doi:10.1016/S0022-3115(02)01519-2.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-233F-2 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0028-FE6A-B

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Urheber:
Geier, A.¹, Autor
Krieger, K.², Autor
Elder, J. D.³, Autor
Pugno, R.⁴, Autor
Rohde, V.¹, Autor
ASDEX Upgrade Team⁵, Autor

Affiliations:
1Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295
2Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856328
3University of Toronto, Institute for Aerospace Studies, 4925 Dufferin St., Toronto, Canada, M3H 5T6, ou_persistent22
4External Organizations, ou_persistent22
5Max Planck Institute for Plasma Physics, Max Planck Society, Boltzmannstraße 2, D-85748 Garching, DE, ou_1856284

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Schlagwörter: 15th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 15), Gifu, 2002-05-26 to 2002-05-31

Zusammenfassung: Tungsten erosion at the central column and tungsten transport in the scrape-off layer of ASDEX Upgrade have been modeled with the 2D Monte-Carlo impurity transport code DIVIMP. The main objectives were the reproduction of the erosion and migration patterns that are observed experimentally. This was accomplished by implementing a new erosion routine which allows to calculate the tungsten source term at the central column and subsequently the poloidal distribution of the W density. First results on W transport in the boundary plasma as well as erosion and migration patterns of W are discussed in relation to different models of the plasma in front of the central column. A comparison between measured and modeled deposition of W in the divertor already shows satisfactory qualitative agreement.