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The Combined Effects of Magnetic Asymmetry, Assembly and Manufacturing Tolerances on the Plasma Heat Load to the ITER First Wall

Abstract : The base plasma heat load on the ITER first wall results from the projection of the plasma scrape off layer power profile onto the shaped surface of the first wall panels. The actual heat load on the first wall is larger than the base heat load, due to enhancement factors such as design approximations, manufacturing and assembly errors, and deviations to the ideally toroidal magnetic field configurations. The heat load increase is accounted for through penalty coefficients, ranging individually from a few percent to 50%. The probabilistic combination of individual penalty coefficients to give a global penalty coefficient is presented in the paper. The global penalty coefficient ranges from 1.37 to 2.44, depending of the first wall row and plasma phase.
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Contributor : Raphael Mitteau <>
Submitted on : Monday, August 24, 2020 - 10:29:40 AM
Last modification on : Thursday, August 27, 2020 - 11:50:04 AM
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R. Mitteau, P. Stangeby, H. Labidi, R. Bruno, R. Raffray. The Combined Effects of Magnetic Asymmetry, Assembly and Manufacturing Tolerances on the Plasma Heat Load to the ITER First Wall. Journal of Nuclear Materials, Elsevier, 2015, 463, pp.411 - 414. ⟨10.1016/j.jnucmat.2014.12.102⟩. ⟨cea-02919821⟩

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