Abstract
A stellarator vacuum field is found in which, at a finite aspect ratio (A ≈ 40), the contours of the second adiabatic invariant of nearly all particles reflected inside that surface are poloidally closed.
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Published in Russian in Fizika Plazmy, 2015, Vol. 41, No. 12, pp. 1127–1130.
The article was translated by the authors.
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Mikhailov, M.I., Nührenberg, J. & Zille, R. Approximate quasi-isodynamicity at a finite aspect ratio in a stellarator vacuum magnetic field. Plasma Phys. Rep. 41, 1046–1048 (2015). https://doi.org/10.1134/S1063780X15120090
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DOI: https://doi.org/10.1134/S1063780X15120090