On Influence of Neutrals on Dust Particle Charging in Complex Plasmas in the Presence of Electromagnetic Radiation

Journal Article · Tue Nov 29 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3659788· OSTI ID:21612209

Kopnin, S I; Morzhakova, A A; Popel, S I ^[1]; Shukla, P K ^[2]

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1. Institute for Dynamics of Geospheres, 119334 Moscow (Russian Federation)
2. Ruhr University Bochum, D-44780 Bochum (Germany)

Effects associated with neutral component of complex (dusty) ionospheric plasmas which affect dust particle charging are studied. Microscopic ion currents on dust particles with taking into account ion-neutral interaction are presented. Calculations are performed both for the case of negative charges of dust particles, when the influence of Solar radiation on dust particle charging processes is negligible, and for the case of positive charges which is realized in the presence of sufficiently intensive UV or X-ray radiation. We also carry out investigation of the electron heating due to the photoelectric effect. We show that the efficiency of electron heating depends on the density of neutral component of the plasma. As result, we determine altitudes where the influence of the neutral plasma component on dust particle charging processes as well as the electron heating effect are significant and should be taken into account under consideration of the ionospheric complex plasmas. In particular, we show that the effects considered could be important for the description of noctilucent clouds, polar mesosphere summer echoes, and some other physical phenomena associated with dust particles in the ionosphere.

• OSTI ID: 21612209
• Journal Information: AIP Conference Proceedings, Vol. 1397, Issue 1; Conference: 6. international conference on the physics of dusty plasmas, Garmisch-Partenkirchen (Germany), 16-20 May 2011; Other Information: DOI: 10.1063/1.3659788; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
COSMIC ELECTRONS
DUSTS
HEATING
IONOSPHERE
IONS
MESOSPHERE
NEUTRAL CURRENTS
NOCTILUCENT CLOUDS
PARTICLES
PHOTOELECTRIC EFFECT
PLASMA
PLASMA DENSITY
SOLAR RADIATION
X RADIATION
ALGEBRAIC CURRENTS
CHARGED PARTICLES
CLOUDS
COSMIC RADIATION
CURRENTS
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
IONIZING RADIATIONS
LEPTONS
PHYSICS
RADIATIONS
SECONDARY COSMIC RADIATION
STELLAR RADIATION