Drift-Energy Replacement Effect in Multi-Ion Magnetized Plasmas

M. E. Mlodik; E. J. Kolmes; N. J. Fisch

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arXiv · 2405.05829

Drift-Energy Replacement Effect in Multi-Ion Magnetized Plasmas

M. E. Mlodik·E. J. Kolmes·N. J. Fisch

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Abstract

Fast rotation can improve the stability and confinement of fusion plasmas. However, to maintain a rapidly rotating fusion plasma in steady state, significant energy must be invested in spinning up each incoming fuel ion. We show here that, under the right circumstances, collisional cross-field radial fueling can directly transfer drift energy between outgoing and incoming ions without the need for external power recirculation, thereby reducing the energy costs of maintaining the rotation.

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M. E. Mlodik, E. J. Kolmes, N. J. Fisch. 2024-05-09. Drift-Energy Replacement Effect in Multi-Ion Magnetized Plasmas. https://arxiv.org/abs/2405.05829

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