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arXiv · 2006.16020

Fast plasma dilution in ITER with pure Deuterium Shattered Pellet Injection

E. Nardon·D. Hu·M. Hoelzl·D. Bonfiglio
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Abstract

JOREK 3D non-linear MagnetoHydroDynamic (MHD) simulations of pure Deuterium Shattered Pellet Injection in ITER are presented. It is shown that such a scheme could allow diluting the plasma by more than a factor 10 without immediately triggering large MHD activity, provided the background impurity density is low enough. This appears as a promising strategy to reduce the risk of hot tail Runaway Electron (RE) generation and to avoid RE beams altogether in ITER, motivating further studies in this direction.

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E. Nardon, D. Hu, M. Hoelzl, D. Bonfiglio. 2020-06-29. Fast plasma dilution in ITER with pure Deuterium Shattered Pellet Injection. https://doi.org/10.1088/1741-4326/abb749

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