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Heat flux distribution and gyro-radius smoothing effect on misaligned CFC tile in the Tore Supra tokamak
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SYSNO ASEP 0433548 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Heat flux distribution and gyro-radius smoothing effect on misaligned CFC tile in the Tore Supra tokamak Author(s) Corre, Y. (FR)
Dejarnac, Renaud (UFP-V) RID, ORCID
Gardarein, J.-L. (FR)
Gaspar, J. (FR)
Escourbiac, F. (FR)
Gauthier, E. (FR)
Gunn, J. (FR)
Komm, Michael (UFP-V) RID, ORCID
Lipa, M. (FR)
Loarer, T. (FR)
Missirlian, M. (FR)
Rigollet, F. (FR)Source Title 21st International Conference on Plasma Surface Interactions 2014. - Toki City : National Institute for Fusion Science, 2014
P3-086-P3-086Number of pages 1 s. Publication form Print - P Action International Conference on Plasma Surface Interactions 2014/21./ Event date 26.05.2014-30.05.2014 VEvent location Kanazawa Country JP - Japan Event type WRD Language eng - English Country JP - Japan Keywords Heat loads ; IR thermography ; misalignment ; limiter Subject RIV BL - Plasma and Gas Discharge Physics Institutional support UFP-V - RVO:61389021 Annotation Understanding heat flux deposition processes is essential for the design of the plasma facing component allowing reliable high power steady state plasma operations. Misalignments up to d = 0.2 mm between two adjacent CFC tiles have been reported on the Toroidal Pump Limiter of Tore Supra. Heat flux impinging the top and leading edge of the protruding tile are characterized with both IR thermographic system and numerical modelling using 2D particle-in-cell simulations that accounts for the Larmor radius smoothing effect of energetic ions. Numerical heat loads are coupled with a 2D thermal model of the tile and with a specific sensor correction to simulate spatial-resolution related effects (necessary here since the tile misalignment is smaller than the spatial resolution of the IR system). In the experiment depicted here, with a misalignment smaller than an ion gyro-radius, the Larmor smoothing effect is maximum and overheating of the leading edge is reduced by a factor of two. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2015
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