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Title: Heating of thermal non-equilibrium ions by Alfvén wave via nonresonant interaction

Pickup of thermal non-equilibrium ions by Alfvén wave via nonresonant wave-particle interaction is investigated by means of analytical test-particle theory. Some interesting and new results are found. No matter what the initial velocity distribution is, if the background magnetic field, the Alfvén speed, and the Alfvén magnetic field are fixed, the average parallel velocity never changes when t→∞. Heating effects in the perpendicular and parallel direction just depend on the initial temperature, and the perpendicular temperature increase is more prominent. It is noted that the heating effect of thermal non-equilibrium ions (Kappa ions) is weaker than that of the Maxwellian. This phenomenon may be relative to the heating of ions in the solar corona as well as in some toroidal confinement fusion devices.
Authors:
;  [1] ;  [2] ;  [3]
  1. Southwestern Institute of Physics, Chengdu 610041 (China)
  2. (China)
  3. The Engineering and Technical College of Chengdu University of Technology, Leshan 614000 (China)
Publication Date:
OSTI Identifier:
22218585
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALFVEN WAVES; EQUILIBRIUM; IONS; MAGNETIC FIELDS; PLASMA; PLASMA CONFINEMENT; PLASMA HEATING; SOLAR CORONA; TEST PARTICLES; THERMONUCLEAR DEVICES; VELOCITY