Monte Carlo simulations of the influence of ion-neutral
collisions on the ion currents collected by electrostatic
probes

J 2002

Monte Carlo simulations of the influence of ion-neutral collisions on the ion currents collected by electrostatic probes

TRUNEC, David, Patrik ŠPANĚL a David SMITH

Základní údaje

Originální název

Monte Carlo simulations of the influence of ion-neutral collisions on the ion currents collected by electrostatic probes

Autoři

TRUNEC, David (203 Česká republika, garant), Patrik ŠPANĚL (203 Česká republika) a David SMITH (826 Velká Británie a Severní Irsko)

Vydání

CONTRIBUTIONS TO PLASMA PHYSICS, Berlin, WILEY-V C H VERLAG GMBH, 2002, 0863-1042

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 0.804

Kód RIV

RIV/00216224:14310/02:00006070

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000173619200010

Klíčová slova anglicky

FLOWING-AFTERGLOW PLASMAS; LANGMUIR-PROBE; SHEATH

Štítky

FLOWING-AFTERGLOW PLASMAS, LANGMUIR-PROBE, SHEATH

Změněno: 11. 6. 2003 12:38, prof. RNDr. David Trunec, CSc.

Anotace

V originále

We have carried out Monte Carlo simulation of the motion of Ar+ ions in the space charge sheath surrounding a cylindrical Langmuir probe. The ion currents to the probe have been calculated from these simulations and the percentages of ions crossing the sheath boundary that are collected by the probe have been determined. It has been 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 at lower helium pressure and decrease this percentage below the OMLC theory prediction at higher helium pressure. It has been shown also that the ion current almost does not depend on probe radius at higher helium pressures. The results of the simulations have been compared with recent Langmuir probe measurements made in flowing afterglow plasmas and with other probe theories.

Návaznosti

GA202/00/1689, projekt VaV

Název: Aplikace sondových a hmotově-spektrometrických metod pro studium elementárních procesů v nízkoteplotním a technologicky orientovaném plazmatu

Investor: Grantová agentura ČR, Aplikace sondových a hmotově-spektrometrických metod pro studium elementárních procesů v nízkoteplotním a technologicky orientovaném plazmatu

Citovat

TRUNEC, David, Patrik ŠPANĚL a David SMITH. Monte Carlo simulations of the influence of ion-neutral collisions on the ion currents collected by electrostatic probes. CONTRIBUTIONS TO PLASMA PHYSICS. Berlin: WILEY-V C H VERLAG GMBH, 2002, roč. 42, č. 1, s. 91-99. ISSN 0863-1042.

@article{397592,
   author = {Trunec, David and Španěl, Patrik and Smith, David},
   article_location = {Berlin},
   article_number = {1},
   keywords = {FLOWING-AFTERGLOW PLASMAS; LANGMUIR-PROBE; SHEATH},
   language = {eng},
   issn = {0863-1042},
   journal = {CONTRIBUTIONS TO PLASMA PHYSICS},
   title = {Monte Carlo simulations of the influence of ion-neutral collisions on the ion currents collected by electrostatic probes},
   volume = {42},
   year = {2002}
}

TY  - JOUR
ID  - 397592
AU  - Trunec, David - Španěl, Patrik - Smith, David
PY  - 2002
TI  - Monte Carlo simulations of the influence of ion-neutral collisions on the ion currents collected by electrostatic probes
JF  - CONTRIBUTIONS TO PLASMA PHYSICS
VL  - 42
IS  - 1
SP  - 91
EP  - 91
PB  - WILEY-V C H VERLAG GMBH
SN  - 08631042
KW  - FLOWING-AFTERGLOW PLASMAS
KW  - LANGMUIR-PROBE
KW  - SHEATH
N2  - We have carried out Monte Carlo simulation of the motion of Ar+ ions in the space charge sheath surrounding a cylindrical Langmuir probe. The ion currents to the probe have been calculated from these simulations and the percentages of ions crossing the sheath boundary that are collected by the probe have been determined. It has been 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 at lower helium pressure and decrease this percentage below the OMLC theory prediction at higher helium pressure. It has been shown also that the ion current almost does not depend on probe radius at higher helium pressures. The results of the simulations have been compared with recent Langmuir probe measurements made in flowing afterglow plasmas and with other probe theories.
ER  -

TRUNEC, David, Patrik ŠPANĚL a David SMITH. Monte Carlo simulations of the influence of ion-neutral collisions on the ion currents collected by electrostatic probes. \textit{CONTRIBUTIONS TO PLASMA PHYSICS}. Berlin: WILEY-V C H VERLAG GMBH, 2002, roč.~42, č.~1, s.~91-99. ISSN~0863-1042.

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