Ion injection in electrostatic particle-in-cell simulations of the ion sheath

被引：5

作者：

Tejero-del-Caz, A. ^{[1
]}

Fernandez Palop, J. I. ^{[2
]}

Diaz-Cabrera, J. M. ^{[3
]}

Regodon, G. F. ^{[2
]}

Carmona-Cabezas, R. ^{[2
]}

Ballesteros, J. ^{[2
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, Ave Rovisco Pais, P-1049001 Lisbon, Portugal

[2] Univ Cordoba, Dept Fis, E-14071 Cordoba, Spain

[3] Univ Cordoba, Dept Ingn Elect, E-14071 Cordoba, Spain

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2017年 / 350卷

关键词：

Plasma diagnostic; Langmuir probes; Sheath theories; PIC; Simulations; BOUNDED PLASMA SYSTEM; TEMPERATURE; COLLECTOR;

D O I：

10.1016/j.jcp.2017.09.018

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A particle injection algorithm has been developed for its use in electrostatic particle-in-cell (PIC) simulations of the ion sheath which takes place in the surroundings of a planar electrode immersed in a plasma when negatively biased. The algorithm takes into account the acceleration of ions along the presheath and evaluates their flux and velocity distribution when entering the simulation at the sheath edge. It has been verified by comparing the results obtained from the PIC simulation with those provided by fluid models of the ion sheath. The algorithm can be easily extended to cylindrical or spherical geometries and, in fact, it has already been successfully used to study the transition from radial to orbital behaviour of ions in the surroundings of cylindrical Langmuir probes. (C) 2017 Elsevier Inc. All rights reserved.

引用

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页码：747 / 758

页数：12

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