PIC model of the ion collection by a Langmuir probe

被引：20

作者：

Taccogna, F ^{[1
]}

Longo, S

Capitelli, M

机构：

[1] CNR, IMIP, Sect Bari,Via Orabona 4, I-70126 Bari, Italy

[2] Univ Bari, Dipartimento Chim, I-70126 Bari, Italy

来源：

CONTRIBUTIONS TO PLASMA PHYSICS | 2004年 / 44卷 / 7-8期

关键词：

particle-in-cell method; Langmuir probe;

D O I：

10.1002/ctpp.200410087

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：

A numerical study is made of the dynamics of Ar+ ions collected by a cylindrical Langmuir probe at medium He buffer gas pressure. The numerical model is based on a combination of PIC simulation for the ion component and fluid description for the electrons using the Boltzmann relation. The electric field is self-consistently computed via the Poisson equation. The neutrals are modeled directly by an analytical method. The elastic collisions between Ar+ ions and He atoms are accounted for using a TPMC method based on the polarization potential theory. The results of the present simulation show the ion current peak observed experimentally at medium pressure regimes. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：594 / 600

页数：7

共 15 条

[1] ION CURRENTS TO CYLINDRICAL LANGMUIR PROBES IN RF PLASMAS [J].

ANNARATONE, BM ;

ALLEN, MW ;

ALLEN, JE .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1992, 25 (03) :417-424

[2]

[Anonymous], COMPUTER SIMULATION

[3]

Chen F. F., 1965, PLASMA DIAGNOSTIC TE

[4] KINETIC THEORY OF A SPHERICAL ELECTROSTATIC PROBE IN A STATIONARY PLASMA [J].

CHOU, YS ;

TALBOT, L ;

WILLIS, DR .

PHYSICS OF FLUIDS, 1966, 9 (11) :2150-&

[5] EFFECT OF ANGLE OF INCIDENCE ON RESPONSE OF CYLINDRICAL ELECTROSTATIC PROBES AT SUPERSONIC SPEEDS [J].

JAKUBOWSKI, AK .

AIAA JOURNAL, 1972, 10 (08) :988-+

[6] LANGMUIR-PROBE MEASUREMENTS IN FLOWING-AFTERGLOW PLASMAS [J].

JOHNSEN, R ;

SHUNKO, EV ;

GOUGOUSI, T ;

GOLDE, MF .

PHYSICAL REVIEW E, 1994, 50 (05) :3994-4004

[7]

KOPICZYNSKI T, 1977, THESIS POLISH ACAD S

[8]

LAFRAMBOISE JG, 1966, 100 UTIAS I AER STUD

[9] AN ION-NEUTRAL SPECIES COLLISION MODEL FOR PARTICLE SIMULATION OF GLOW-DISCHARGE [J].

NANBU, K ;

KITATANI, Y .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1995, 28 (02) :324-330

[10] THE INFLUENCE OF COLLISIONS IN THE SPACE-CHARGE SHEATH ON THE ION CURRENT COLLECTED BY A LANGMUIR PROBE [J].

SPANEL, P ;

SMITH, D ;

CHUDACEK, O ;

KUDRNA, P ;

TICHY, M .

CONTRIBUTIONS TO PLASMA PHYSICS, 1995, 35 (01) :3-14

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