Evaluation of first wall heat fluxes due to magnetic perturbations for a range of ITER scenarios

0445031 - ÚFP 2016 RIV NL eng J - Journal Article
Cahyna, Pavel - Kripner, Lukáš - Loarte, A. - Huijsmans, G. - Peterka, Matěj - Pánek, Radomír
Evaluation of first wall heat fluxes due to magnetic perturbations for a range of ITER scenarios.
Journal of Nuclear Materials. Roč. 463, August (2015), s. 406-410. ISSN 0022-3115. E-ISSN 1873-4820.
[PLASMA-SURFACE INTERACTIONS 21: International Conference on Plasma-Surface Interactions in Controlled Fusion Devices. Kanazawa, 26.05.2014-30.05.2014]
R&D Projects: GA ČR GAP205/11/2341
Institutional support: RVO:61389021
Keywords : ELM * plasma * ITER
OECD category: Nuclear related engineering
Impact factor: 2.199, year: 2015
http://www.sciencedirect.com/science/article/pii/S0022311514009283

The proposed use of magnetic perturbations for edge-localized mode (ELM) control in ITER poses a number of integration issues, among them the localized heat fluxes (footprints) on the plasma-facing components (PFCs). They may provide the benefit of spreading the heat flux, thus reducing its peak value, but they may cause a localized erosion of the PFCs. We present calculations of heat fluxes for a range of ITER plasma parameters. The efficiency of our method enables us to perform calculations for a range of assumptions on the SOL width and to optimize the coil configuration to yield the largest power flux spreading. The optimal coil configuration is not sensitive on SOL parameters and is also close to the one which is considered optimal for ELM control. The proximity of footprints may cause significant power loads on the upper wall.
Permanent Link: http://hdl.handle.net/11104/0247448