Kinetic micro-instabilities in the presence of impurities in toroidal magnetized plasmas

Jiaqi DONG (董家齐)

doi:10.1088/2058-6272/aad4f4

Plasma Science and Technology > 2018 > 20(9): 94005-094005. > DOI: 10.1088/2058-6272/aad4f4

Jiaqi DONG (董家齐). Kinetic micro-instabilities in the presence of impurities in toroidal magnetized plasmas[J]. Plasma Science and Technology, 2018, 20(9): 94005-094005. DOI: 10.1088/2058-6272/aad4f4

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Kinetic micro-instabilities in the presence of impurities in toroidal magnetized plasmas

Jiaqi DONG (董家齐)

Southwestern Institute of Physics, Chengdu 610041, People’s Republic of China Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, People’s Republic of China

Funds: The work is supported by National Natural Science Foundation of China (Nos. 11475057 and 11575158), and the National Key R & D Program of China under Grant No. 2017YFE0300405.

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Received Date: April 29, 2018

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Abstract

Abstract

The theoretical and numerical studies on kinetic micro-instabilities, including ion temperature gradient (ITG) driven modes, trapped electron modes (TEMs) in the presence of impurity ions as well as impurity modes (IMs), induced by impurity density gradient alone, in toroidal magnetized plasmas, such as tokamak and reversed-field pinch (RFP) are reviewed briefly. The basic theory for IMs, the electrostatic instabilities in tokamak and RFP plasmas are discussed. The observations of hybrid and coexistence of the instabilities are categorized systematically. The effects of impurity ions on electromagnetic instabilities such as ITG modes, the kinetic ballooning modes (KBMs) and kinetic shear Alfvén modes induced by impurity ions in tokamak plasmas of finite β (=plasma pressure/magnetic pressure) are analyzed. The interesting topics for future investigation are suggested.
- micro-instabilities, ideal and resistive MHD modes, gyrofluid and gyrokinetic simulations

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References (54)

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