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arXiv · 1510.00780

Neoclassical Pitch-Angle Scattering of Runaway Electrons

Jian Liu·Yulei Wang·Hong Qin
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Abstract

It is discovered that the tokamak field geometry generates a pitch-angle scattering effect for runaway electrons. This neoclassical pitch-angle scattering is much stronger than the collisional scattering and invalidates the gyro-center model for runaway electrons. As a result, the energy limit of runaway electrons is found to be larger than the prediction of the gyro-center model and to depend heavily on the background magnetic field.

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Jian Liu, Yulei Wang, Hong Qin. 2015-10-03. Neoclassical Pitch-Angle Scattering of Runaway Electrons. https://doi.org/10.1088/0029-5515%2F56%2F6%2F064002

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