The influence of ion - neutral collisions in the plasma sheath on the ion current to an electrostatic probe: Monte Carlo simulation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F95%3A00003759" target="_blank" >RIV/00216224:14310/95:00003759 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

The influence of ion - neutral collisions in the plasma sheath on the ion current to an electrostatic probe: Monte Carlo simulation

Original language description

We have carried out Monte Carlo simulation of the motion of Ar+ ions in the space charge sheath surrounding a cylindrical Langmuir probe. From these simulations the percentage of ions crossing the sheath boundary that are collected by the probe have beendetermined and thus the ion currents to the probe have been calculated. It is shown that the collisions of ions with neutral helium gas atoms in the sheath increase the percentage of ions collected by the probe above that predicted by collisionless orbital motion limited current (OMLC) theory and that the exponent, x, of the power law dependence, i(+) similar to U-p(x), of the ion current, i(+), on the probe voltage, U-p, increases above the value 0.5 predicted by OMLC theory. The results of the simulations are compared with recent Langmuir probe measurements made in flowing afterglow plasmas.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1995

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Contributions to Plasma Physics

ISSN

0005-8025

e-ISSN

—

Volume of the periodical

35

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

10

Pages from-to

203

UT code for WoS article

—

EID of the result in the Scopus database

—