Investigation of magnetized plasma sheath in the presence of q-nonextensive electrons and negative ions

被引：7
|
作者：
Asserghine, Aziza [1 ]
El Kaouini, Morad [1 ,2 ]
Chatei, Hassan [1 ]
机构：
[1] Mohammed I Univ, Dept Phys, LPMR, Fac Sci, Oujda, Morocco
[2] Mohammed I Univ, Polydisciplinary Fac Nador, Dept Phys, Nador, Morocco
来源：
MATERIALS TODAY-PROCEEDINGS | 2020年 / 24卷
关键词：
Plasma; Bohm criterion; Magnetized sheath; Negative ions; Nonextensive electrons;
D O I：
10.1016/j.matpr.2019.07.439
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sheath region of an electronegative magnetized plasma consisting of q-nonextensive electrons, Boltzmann distributed negative ions and positive ions with finite temperature is investigated by using a steady state fluid model. Considering Sagdeev's pseudo potential method, a modified Bohm criterion is derived. Taking into account the new formation criterion, the fluid model is then solved numerically and the density distribution of charged particles in the sheath region is studied for different values of the initial positive ion velocity at the sheath edge. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：24 / 28
页数：5
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