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

作者：Razzaq Javaria^*; Haque Q; Khan Majid; Bhatti Adnan Mehmood; Kamran M; Mirza Arshad M

来源：Physics of Plasmas, 2018, 25(2): 022119.

DOI：10.1063/1.5020745

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.

• 出版日期2018-2