Nonlinear structure formation in ion-temperature-gradient driven drift waves in pair-ion plasma with nonthermal electron distribution

被引：6

作者：

Razzaq, Javaria ^{[1
]}

Haque, Q. ^{[2
]}

Khan, Majid ^{[1
]}

Bhatti, Adnan Mehmood ^{[3
]}

Kamran, M. ^{[4
]}

Mirza, Arshad M. ^{[1
]}

机构：

[1] Quaid I Azam Univ, Dept Phys, Theoret Plasma Phys Grp, Islamabad 45320, Pakistan

[2] PINSTECH, Div Theoret Phys, PO Nilore, Islamabad, Pakistan

[3] Univ Engn & Technol, Dept Comp Engn, Taxila 47050, Pakistan

[4] COMSATS Inst Informat Technol, Pk Rd, Islamabad 44000, Pakistan

来源：

PHYSICS OF PLASMAS | 2018年 / 25卷 / 02期

关键词：

VORTICES; VORTEX;

D O I：

10.1063/1.5020745

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Nonlinear structure formation in ion-temperature-gradient (ITG) driven waves is investigated in pair-ion plasma comprising ions and nonthermal electrons (kappa, Cairns). By using the transport equations of the Braginskii model, a new set of nonlinear equations are derived. A linear dispersion relation is obtained and discussed analytically as well as numerically. It is shown that the nonthermal population of electrons affects both the linear and nonlinear characteristics of the ITG mode in pair-ion plasma. This work will be useful in tokamaks and stellarators where non-Maxwellian population of electrons may exist due to resonant frequency heating, electron cyclotron heating, runaway electrons, etc. Published by AIP Publishing.

引用

页数：6

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