Volume 112, Number 5, December 2015
|Number of page(s)||5|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||22 December 2015|
Transport study for passing energetic ions in presence of the resonant interactions with rotating magnetic islands
1 School of Nuclear Science and Technology, University of South China - Hengyang 421001, PRC
2 Southwestern Institute of Physics - Chengdu 610041, PRC
3 School of Mathematics and Physics, University of South China - Hengyang 421001, PRC
Received: 24 August 2015
Accepted: 30 November 2015
The transport of passing energetic ions (EIs) in presence of the resonant interaction with a rotating magnetic island is studied within the frame of drift kinetics. The phase-space structure of the drift island induced by the resonances is first presented. New transport channels responsible for the transport of EIs are discovered when the drift island of phase space couples with the magnetic island in real space. When the pitch-angle scattering rate is very weak, the resonance-induced transport is dominant. Only a small increase in the collision rate can significantly influence the total transport.
PACS: 52.35.Vd – Magnetic reconnection / 52.25.Fi – Transport properties / 52.55.Pi – Fusion products effects (e.g., alpha-particles, etc.), fast particle effects
© EPLA, 2015
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