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Title: Verification of gyrokinetic particle simulation of current-driven instability in fusion plasmas. III. Collisionless tearing mode

A finite-mass electron fluid model for low frequency electromagnetic fluctuations, particularly the collisionless tearing mode, has been implemented in the gyrokinetic toroidal code. Using this fluid model, linear properties of the collisionless tearing mode have been verified. Simulations verify that the linear growth rate of the single collisionless tearing mode is proportional to D{sub e}{sup 2}, where D{sub e} is the electron skin depth. On the other hand, the growth rate of a double tearing mode is proportional to D{sub e} in the parameter regime of fusion plasmas.
Authors:
 [1] ;  [2] ;  [3] ; ;  [1] ;  [4]
  1. College of Physical Science and Technology, Sichuan University, Chengdu 610064 (China)
  2. (China)
  3. Fusion Simulation Center, Peking University, Beijing 100871 (China)
  4. Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States)
Publication Date:
OSTI Identifier:
22493883
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 2; Other Information: (c) 2016 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; COLLISIONLESS PLASMA; COMPUTERIZED SIMULATION; CURRENTS; ELECTROMAGNETIC RADIATION; ELECTRONS; FLOW MODELS; FLUCTUATIONS; GYROFREQUENCY; PARTICLES; TEARING INSTABILITY; VERIFICATION