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arXiv · 2512.01780

High-beta equilibrium in mirror machine with population of fast sloshing ions

Ivan Chernoshtanov
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Abstract

A method of constructing the high-beta (diamagnetic-bubble-like) equilibrium with a population of fast sloshing ions is discussed. Fast ions move along betatron orbits; such ions can arise because of off-axis neutral beam injection. Conservation of the adiabatic invariant of these ions is proposed; a simplified expression for the invariant is presented. Numerical examples of equilibrium with sloshing ions are shown and conservation of the invariant is justified by a direct numerical simulation of motion of fast ions even in the case with beta equal to 1.

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Ivan Chernoshtanov. 2025-12-01. High-beta equilibrium in mirror machine with population of fast sloshing ions. https://arxiv.org/abs/2512.01780

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