Kinetic plasma instabilities due to charge exchange and elastic collisions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00225920" target="_blank" >RIV/68407700:21230/15:00225920 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985815:_____/15:00472949

Výsledek na webu

<a href="http://iopscience.iop.org/1742-6596/591/1/012034" target="_blank" >http://iopscience.iop.org/1742-6596/591/1/012034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/591/1/012034" target="_blank" >10.1088/1742-6596/591/1/012034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Kinetic plasma instabilities due to charge exchange and elastic collisions

Popis výsledku v původním jazyce

With numerical particle-in-cell simulations, we study kinetic plasma instabilities induced by collisions between plasma particles and neutral background in magnetized drifting plasmas. We consider the role of charge exchange as well as elastic collisionsin the evolution of the system. Charge exchange collisions can give rise to velocity distributions in the form of loss- cone or ring shaped distributions that can become linearly unstable. Elastic collisions also lead to the instability, but in this case the principal mechanism may be attributed to the generalized two-stream instability. We investigate the growth rates and saturation levels for instabilities associated with these collisional processes, as well as the corresponding electrostatic waves,and find higher saturation levels and stronger uctuations for the case with charge exchange collisions. Characteristics of the studied system are similar to the E- and F-regions of the Earth's ionosphere. Our results are relevant for expl

Název v anglickém jazyce

Kinetic plasma instabilities due to charge exchange and elastic collisions

Popis výsledku anglicky

With numerical particle-in-cell simulations, we study kinetic plasma instabilities induced by collisions between plasma particles and neutral background in magnetized drifting plasmas. We consider the role of charge exchange as well as elastic collisionsin the evolution of the system. Charge exchange collisions can give rise to velocity distributions in the form of loss- cone or ring shaped distributions that can become linearly unstable. Elastic collisions also lead to the instability, but in this case the principal mechanism may be attributed to the generalized two-stream instability. We investigate the growth rates and saturation levels for instabilities associated with these collisional processes, as well as the corresponding electrostatic waves,and find higher saturation levels and stronger uctuations for the case with charge exchange collisions. Characteristics of the studied system are similar to the E- and F-regions of the Earth's ionosphere. Our results are relevant for expl

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

15th LAWPP2014 & 21st IAEA TM RUSFD

ISBN

—

ISSN

1742-6588

e-ISSN

—

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

IOP Institute of Physics

Místo vydání

Bristol BS1 6BE

Místo konání akce

San José

Datum konání akce

27. 1. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000352108900034