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arXiv · 2106.05697

A model for the fast evaluation of prompt losses of energetic ions in stellarators

J. L. Velasco·I. Calvo·S. Mulas·E. Sánchez·F. I. Parra·Á. Cappa·the W7-X team
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Abstract

A good understanding of the confinement of energetic ions in non-axisymmetric magnetic fields is key for the design of reactors based on the stellarator concept. In this work, we develop a model that, based on the radially-local bounce-averaged drift-kinetic equation, classifies orbits and succeeds in predicting configuration-dependent aspects of the prompt losses of energetic ions in stellarators. Such a model could in turn be employed in the optimization stage of the design of new devices.

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J. L. Velasco, I. Calvo, S. Mulas, E. Sánchez, F. I. Parra, Á. Cappa, the W7-X team. 2021-06-10. A model for the fast evaluation of prompt losses of energetic ions in stellarators. https://doi.org/10.1088/1741-4326/ac2994

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