Scattering Cross Section of Charged Dust Particles in Magnetized Plasma

被引：1

作者：

Rathod, Dinesh ^{[1
]}

Sarma, Arun ^{[2
]}

Avasthi, D. K. ^{[1
]}

机构：

[1] Univ Petr & Energy Studies UPES, Dept Res & Dev, Dehra Dun 248007, Uttarakhand, India

[2] North East Ctr Technol Applicat & Reach NECTAR, New Delhi 110016, India

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2021年 / 49卷 / 11期

关键词：

Plasmas; Ions; Scattering; Perpendicular magnetic anisotropy; Electric potential; Probes; Mathematical models; COMSOL; scattering parameter; Yukawa potential; ION-DRAG; PROBE; CRYSTALLIZATION; ROTATION;

D O I：

10.1109/TPS.2021.3122537

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：

Dust particles in magnetized plasma have generated considerable interest in the semiconductor industry, plasma crystals, Tokamaks, cosmological events, and so on. Upon introducing dust particles in dc glow discharge plasma, they get charged, and hence, a potential is developed surrounding the same. Coulomb potential or Yukawa potential is taken for the interaction of charged dust particles. The effect of magnetic field along the axis of the chamber and, subsequently, scattering cross section of charged dust particles due to the interaction of magnetic fields have been studied critically in this report. A generalized mathematical model is implemented, to find the scattering cross section of charged dust particles. The scattering parameter is introduced to reduce the complexity involved in the derivation of integral equations. Furthermore, to validate the mathematical model, the simulation of DC glow discharge plasma in COMSOL Multiphysics has been carried out. A rectangle chamber with charged dust particles is introduced and with varying magnetic fields, and the transport of dust particles is recorded. The scattering cross section of dust particles is determined from the velocity profile of dust particles and it has been observed that the scattering cross section decreases with the increase of the magnetic field.

引用

页码：3663 / 3670

页数：8

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