Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade

Leena Aho-Mantila; M. Wischmeier; K. Krieger; V. Rohde; H.W. Müller; D.P. Coster; M. Groth; A. Kirschner; R. Neu; S. Potzel; B. Sieglin; E. Wolfrum; ASDEX Upgrade Team

doi:10.1016/j.jnucmat.2010.10.080

Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade

Leena Aho-Mantila (Corresponding Author), M. Wischmeier, K. Krieger, V. Rohde, H.W. Müller, D.P. Coster, M. Groth, A. Kirschner, R. Neu, S. Potzel, B. Sieglin, E. Wolfrum, ASDEX Upgrade Team

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

13 Citations (Scopus)

Abstract

Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of ¹³C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in ¹³C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.

Original language	English
Pages (from-to)	S231-S234
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	415
Issue number	1, Supplement
DOIs	https://doi.org/10.1016/j.jnucmat.2010.10.080
Publication status	Published - 2011
MoE publication type	A1 Journal article-refereed
Event	19th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI-19 - San Diego, United States Duration: 24 May 2010 → 28 May 2010

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Aho-Mantila, L., Wischmeier, M., Krieger, K., Rohde, V., Müller, H. W., Coster, D. P., Groth, M., Kirschner, A., Neu, R., Potzel, S., Sieglin, B., Wolfrum, E., & ASDEX Upgrade Team (2011). Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade. Journal of Nuclear Materials, 415(1, Supplement), S231-S234. https://doi.org/10.1016/j.jnucmat.2010.10.080

@article{d410c36807ea4ab9bd6620f05446fe64,

title = "Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade",

abstract = "Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.",

author = "Leena Aho-Mantila and M. Wischmeier and K. Krieger and V. Rohde and H.W. M{\"u}ller and D.P. Coster and M. Groth and A. Kirschner and R. Neu and S. Potzel and B. Sieglin and E. Wolfrum and {ASDEX Upgrade Team}",

year = "2011",

doi = "10.1016/j.jnucmat.2010.10.080",

language = "English",

volume = "415",

pages = "S231--S234",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "1, Supplement",

note = "19th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI-19 ; Conference date: 24-05-2010 Through 28-05-2010",

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Aho-Mantila, L, Wischmeier, M, Krieger, K, Rohde, V, Müller, HW, Coster, DP, Groth, M, Kirschner, A, Neu, R, Potzel, S, Sieglin, B, Wolfrum, E & ASDEX Upgrade Team 2011, 'Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade', Journal of Nuclear Materials, vol. 415, no. 1, Supplement, pp. S231-S234. https://doi.org/10.1016/j.jnucmat.2010.10.080

TY - JOUR

T1 - Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade

AU - Aho-Mantila, Leena

AU - Wischmeier, M.

AU - Krieger, K.

AU - Rohde, V.

AU - Müller, H.W.

AU - Coster, D.P.

AU - Groth, M.

AU - Kirschner, A.

AU - Neu, R.

AU - Potzel, S.

AU - Sieglin, B.

AU - Wolfrum, E.

AU - ASDEX Upgrade Team

PY - 2011

Y1 - 2011

N2 - Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.

AB - Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.

U2 - 10.1016/j.jnucmat.2010.10.080

DO - 10.1016/j.jnucmat.2010.10.080

M3 - Article

SN - 0022-3115

VL - 415

SP - S231-S234

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1, Supplement

T2 - 19th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI-19

Y2 - 24 May 2010 through 28 May 2010

ER -

Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade

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