Study of “source sheath” problem in PIC/MC simulation:
Spherical geometry

J 2017

Study of “source sheath” problem in PIC/MC simulation: Spherical geometry

TRUNEC, David, Petr ZIKÁN, Jakub WAGNER and Zdeněk BONAVENTURA

Basic information

Original name

Study of “source sheath” problem in PIC/MC simulation: Spherical geometry

Name in Czech

Studium problému zdrojové vrstvy v PIC/MC simulaci: kulová geometrie

Authors

TRUNEC, David (203 Czech Republic, guarantor, belonging to the institution), Petr ZIKÁN (203 Czech Republic, belonging to the institution), Jakub WAGNER (203 Czech Republic, belonging to the institution) and Zdeněk BONAVENTURA (203 Czech Republic, belonging to the institution)

Edition

Physics of Plasmas, MELVILLE, AMER INST PHYSICS, 2017, 1070-664X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.941

RIV identification code

RIV/00216224:14310/17:00096955

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1063/1.4984990

UT WoS

000404639000083

Keywords (in Czech)

plazma; PIC/MC simulace

Keywords in English

plasma; PIC/MC simulation

Abstract

ORIG CZ

V originále

A method for treatment of boundary conditions and particle loading in a self-consistent semi-infinite Particle-In-Cell/Monte Carlo simulation is presented. A non-ionizing, collisional plasma in contact with an electrode was assumed. The simulation was performed for a spherical probe with constant probe potential. The motion of charged particles was calculated in three dimensions, but only the radial charge distribution and thus only radial electric field were assumed. The particle loading has to be done with an appropriate velocity distribution with a radial drift velocity. This drift velocity has to be calculated from the probe current, and therefore, a self-consistent (iterative) approach is necessary. Furthermore, correct values of particle densities and electric field potential at the outer boundary of the computational domain have to be set using asymptotic formulae for particle density and electric field potential. This approach removes the “source sheath” which is created artificially, if incorrect boundary conditions and velocity distributions of loaded particles are used. This approach is, however, feasible only for the case of a negative probe where asymptotic formulae are known.

In Czech

Byla vyvinuta metoda pro PIC/MC simulaci polonekonečného plazmatu v okolí kulové sondy.

Links

LO1411, research and development project

Name: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

TRUNEC, David, Petr ZIKÁN, Jakub WAGNER and Zdeněk BONAVENTURA. Study of “source sheath” problem in PIC/MC simulation: Spherical geometry. Physics of Plasmas. MELVILLE: AMER INST PHYSICS, 2017, vol. 24, No 6, p. nestránkováno, 7 pp. ISSN 1070-664X. Available from: https://dx.doi.org/10.1063/1.4984990.

@article{1383080,
   author = {Trunec, David and Zikán, Petr and Wagner, Jakub and Bonaventura, Zdeněk},
   article_location = {MELVILLE},
   article_number = {6},
   doi = {http://dx.doi.org/10.1063/1.4984990},
   keywords = {plasma; PIC/MC simulation},
   language = {eng},
   issn = {1070-664X},
   journal = {Physics of Plasmas},
   title = {Study of “source sheath” problem in PIC/MC simulation: Spherical geometry},
   volume = {24},
   year = {2017}
}

TY  - JOUR
ID  - 1383080
AU  - Trunec, David - Zikán, Petr - Wagner, Jakub - Bonaventura, Zdeněk
PY  - 2017
TI  - Study of “source sheath” problem in PIC/MC simulation: Spherical geometry
JF  - Physics of Plasmas
VL  - 24
IS  - 6
SP  - nestránkováno
EP  - nestránkováno
PB  - AMER INST PHYSICS
SN  - 1070664X
KW  - plasma
KW  - PIC/MC simulation
N2  - A method for treatment of boundary conditions and particle loading in a self-consistent semi-infinite Particle-In-Cell/Monte Carlo simulation is presented. A non-ionizing, collisional plasma in contact with an electrode was assumed. The simulation was performed for a spherical probe with constant probe potential. The motion of charged particles was calculated in three dimensions, but only the radial charge distribution and thus only radial electric field were assumed. The particle loading has to be done with an appropriate velocity distribution with a radial drift velocity. This drift velocity has to be calculated from the probe current, and therefore, a self-consistent (iterative) approach is necessary. Furthermore, correct values of particle densities and electric field potential at the outer boundary of the computational domain have to be set using asymptotic formulae for particle density and electric field potential. This approach removes the “source sheath” which is created artificially, if incorrect boundary conditions and velocity distributions of loaded particles are used. This approach is, however, feasible only for the case of a negative probe where asymptotic formulae are known.
ER  -

TRUNEC, David, Petr ZIKÁN, Jakub WAGNER and Zdeněk BONAVENTURA. Study of “source sheath” problem in PIC/MC simulation: Spherical geometry. \textit{Physics of Plasmas}. MELVILLE: AMER INST PHYSICS, 2017, vol.~24, No~6, p.~nestránkováno, 7 pp. ISSN~1070-664X. Available from: https://dx.doi.org/10.1063/1.4984990.

Detailed Information on Publication Record