Measurements and ERO simulations of carbon flows in the high-field side main SOL in AUG

T. Makkonen; M. Groth; Markus Airila; R. Dux; A. Janzer; T. Kurki-Suonio; T. Lunt; H.W. Mueller; T. Puetterich; E. Viezzer; ASDEX Upgrade Team

doi:10.1016/j.jnucmat.2013.01.082

Measurements and ERO simulations of carbon flows in the high-field side main SOL in AUG

T. Makkonen (Corresponding Author), M. Groth, Markus Airila, R. Dux, A. Janzer, T. Kurki-Suonio, T. Lunt, H.W. Mueller, T. Puetterich, E. Viezzer, ASDEX Upgrade Team

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Abstract

The plasma flow in the SOL is important for impurity migration. There are few measurements from the HFS main SOL. To study the flow in the HFS SOL of ASDEX Upgrade, methane was injected from a HFS valve. The ensuing carbon emission distribution was followed using a fast video camera and a spectrometer was used to determine the Doppler shift of the injected carbon. This was carried out in lower single null L-mode and H-mode for low and high density plasmas. To elucidate the coupling between the flow of the injected carbon and the actual deuterium flow, ERO simulations were utilized. A strong carbon and deuterium flow towards the lower inner divertor was observed for high density plasmas in the far SOL along with a shear in the flow profile.

Original language	English
Pages (from-to)	S410-S413
Journal	Journal of Nuclear Materials
Volume	438
Issue number	Supplement
DOIs	https://doi.org/10.1016/j.jnucmat.2013.01.082
Publication status	Published - 2013
MoE publication type	A1 Journal article-refereed
Event	20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany Duration: 21 May 2012 → 25 May 2012

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10.1016/j.jnucmat.2013.01.082

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title = "Measurements and ERO simulations of carbon flows in the high-field side main SOL in AUG",

abstract = "The plasma flow in the SOL is important for impurity migration. There are few measurements from the HFS main SOL. To study the flow in the HFS SOL of ASDEX Upgrade, methane was injected from a HFS valve. The ensuing carbon emission distribution was followed using a fast video camera and a spectrometer was used to determine the Doppler shift of the injected carbon. This was carried out in lower single null L-mode and H-mode for low and high density plasmas. To elucidate the coupling between the flow of the injected carbon and the actual deuterium flow, ERO simulations were utilized. A strong carbon and deuterium flow towards the lower inner divertor was observed for high density plasmas in the far SOL along with a shear in the flow profile.",

author = "T. Makkonen and M. Groth and Markus Airila and R. Dux and A. Janzer and T. Kurki-Suonio and T. Lunt and H.W. Mueller and T. Puetterich and E. Viezzer and {ASDEX Upgrade Team}",

year = "2013",

doi = "10.1016/j.jnucmat.2013.01.082",

language = "English",

volume = "438",

pages = "S410--S413",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "Supplement",

note = "20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, PSI-20 ; Conference date: 21-05-2012 Through 25-05-2012",

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TY - JOUR

T1 - Measurements and ERO simulations of carbon flows in the high-field side main SOL in AUG

AU - Makkonen, T.

AU - Groth, M.

AU - Airila, Markus

AU - Dux, R.

AU - Janzer, A.

AU - Kurki-Suonio, T.

AU - Lunt, T.

AU - Mueller, H.W.

AU - Puetterich, T.

AU - Viezzer, E.

AU - ASDEX Upgrade Team

PY - 2013

Y1 - 2013

N2 - The plasma flow in the SOL is important for impurity migration. There are few measurements from the HFS main SOL. To study the flow in the HFS SOL of ASDEX Upgrade, methane was injected from a HFS valve. The ensuing carbon emission distribution was followed using a fast video camera and a spectrometer was used to determine the Doppler shift of the injected carbon. This was carried out in lower single null L-mode and H-mode for low and high density plasmas. To elucidate the coupling between the flow of the injected carbon and the actual deuterium flow, ERO simulations were utilized. A strong carbon and deuterium flow towards the lower inner divertor was observed for high density plasmas in the far SOL along with a shear in the flow profile.

AB - The plasma flow in the SOL is important for impurity migration. There are few measurements from the HFS main SOL. To study the flow in the HFS SOL of ASDEX Upgrade, methane was injected from a HFS valve. The ensuing carbon emission distribution was followed using a fast video camera and a spectrometer was used to determine the Doppler shift of the injected carbon. This was carried out in lower single null L-mode and H-mode for low and high density plasmas. To elucidate the coupling between the flow of the injected carbon and the actual deuterium flow, ERO simulations were utilized. A strong carbon and deuterium flow towards the lower inner divertor was observed for high density plasmas in the far SOL along with a shear in the flow profile.

U2 - 10.1016/j.jnucmat.2013.01.082

DO - 10.1016/j.jnucmat.2013.01.082

M3 - Article

SN - 0022-3115

VL - 438

SP - S410-S413

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - Supplement

T2 - 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices

Y2 - 21 May 2012 through 25 May 2012

ER -

Measurements and ERO simulations of carbon flows in the high-field side main SOL in AUG

Abstract

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