DIVIMP-B2-EIRENE modelling of 13C migration and deposition in ASDEX Upgrade L-mode plasmas

作者: Andre Xuereb , Mathias Groth , Karl Krieger , Otto Asunta , T Kurki-Suonio

DOI: 10.1016/J.JNUCMAT.2009.11.014

关键词: Deposition (chemistry)PlasmaDivertorLayer (electronics)TokamakAtomic physicsChemistryASDEX UpgradeFusion powerField (physics)

摘要: Carbon transport and migration were studied experimentally numerically in a high-density, low-confinement mode plasma the ASDEX Upgrade tokamak. On last day of operation 2004–2005 experimental campaign, 13CH4 was injected into vacuum vessel from low field side midplane. A poloidal set tiles subsequently removed analysed for 13C deposition. In this work measured deposition profile is interpreted using impurity code DIVIMP. The simulated distribution deviates significantly profile. simulations indicate that promptly deposited at wall vicinity injection port, transported to divertor plate predominately via scrape-off layer. B2-EIRENE solution produce stagnant flow main layer, contrast measurements other tokamaks. This likely cause discrepancy between calculated Key model parameters DIVIMP varied determine their effect on

参考文章(17)
D. Reiter, Progress in two-dimensional plasma edge modelling Journal of Nuclear Materials. ,vol. 196, pp. 80- 89 ,(1992) , 10.1016/S0022-3115(06)80014-0
G. Federici, R.A. Anderl, P. Andrew, J.N. Brooks, R.A. Causey, J.P. Coad, D. Cowgill, R.P. Doerner, A.A. Haasz, G. Janeschitz, W. Jacob, G.R. Longhurst, R. Nygren, A. Peacock, M.A. Pick, V. Philipps, J. Roth, C.H. Skinner, W.R. Wampler, In-vessel tritium retention and removal in ITER Journal of Nuclear Materials. ,vol. 266, pp. 14- 29 ,(1999) , 10.1016/S0022-3115(98)00876-9
HW Müller, V Bobkov, A Herrmann, M Maraschek, J Neuhauser, V Rohde, A Schmid, M Tsalas, ASDEX Upgrade Team, Deuterium plasma flow in the scrape-off-layer of ASDEX Upgrade Journal of Nuclear Materials. ,vol. 363, pp. 605- 610 ,(2007) , 10.1016/J.JNUCMAT.2006.12.054
P.C. Stangeby, C. Farrell, S. Hoskins, L. Wood, Monte Carlo modelling of impurity ion transport for a limiter source/sink Nuclear Fusion. ,vol. 28, pp. 1945- 1962 ,(1988) , 10.1088/0029-5515/28/11/003
J.D. Elder, A.G. McLean, P.C. Stangeby, S.L. Allen, J.A. Boedo, B.D. Bray, N.H. Brooks, M.E. Fenstermacher, M. Groth, A.W. Leonard, D.L. Rudakov, W.R. Wampler, J.G. Watkins, W.P. West, D.G. Whyte, Indications of an inward pinch in the inner SOL of DIII-D from 13C deposition experiments Journal of Nuclear Materials. ,vol. 390-391, pp. 376- 379 ,(2009) , 10.1016/J.JNUCMAT.2009.01.080
D Naujoks, R Behrisch, J.P Coad, L.C.J.M. De Kock, Material transport by erosion and redeposition on surface probes in the scrape-off layer of JET Nuclear Fusion. ,vol. 33, pp. 581- 590 ,(1993) , 10.1088/0029-5515/33/4/I05
A.G. McLean, J.D. Elder, P.C. Stangeby, S.L. Allen, J.A. Boedo, N.H. Brooks, M.E. Fenstermacher, M. Groth, S. Lisgo, A. Nagy, D.L. Rudakov, W.R. Wampler, J.G. Watkins, W.P. West, D.G. Whyte, DIVIMP modeling of the toroidally symmetrical injection of 13CH4 into the upper SOL of DIII-D Journal of Nuclear Materials. ,vol. 337, pp. 124- 128 ,(2005) , 10.1016/J.JNUCMAT.2004.10.130
W.R. Wampler, A.G. McLean, S.L. Allen, N.H. Brooks, J.D. Elder, M.E. Fenstermacher, M. Groth, P.C. Stangeby, W.P. West, D.G. Whyte, Transport and deposition of 13C from methane injection into partially detached H-mode plasmas in DIII-D Journal of Nuclear Materials. ,vol. 363, pp. 72- 77 ,(2007) , 10.1016/J.JNUCMAT.2006.12.038
R. Schneider, D. Reiter, H.P. Zehrfeld, B. Braams, M. Baelmans, J. Geiger, H. Kastelewicz, J. Neuhauser, R. Wunderlich, B2-EIRENE simulation of ASDEX and ASDEX-Upgrade scrape-off layer plasmas Journal of Nuclear Materials. ,vol. 196, pp. 810- 815 ,(1992) , 10.1016/S0022-3115(06)80147-9
Elizaveta Vainonen-Ahlgren, Jari Likonen, T Renvall, V Rohde, M Mayer, ASDEX Upgrade Team, Migration of 13C and deposition at ASDEX Upgrade Journal of Nuclear Materials. ,vol. 363, pp. 270- 275 ,(2007) , 10.1016/J.JNUCMAT.2007.01.026