THE PECULIARITIES OF DUST PARTICLES CHARGING AT IONOSPHERE HEIGHTS AT THE PRESENTS OF NON-MAXWELLIAN ELECTRONS
Keywords:
mesosphere, ionosphere, dusty plasma, Maxwell distribution, non-Maxwell dis- tribution, kappa distributionAbstract
In this paper, the dust particles charging peculiarities in the presence of non-
Maxwellian electrons at the heights of the ionosphere was investigated. The existence of non-
Maxwellian electrons caused by heating stands. The kappa distribution was taken as non-
Maxwellian distribution at k=9. The calculations were carried out for ionospheric plasma at the
heights 85-90 km, a temperature of 150° K, and an electron and ion concentration of 1010 m-3. All
dust particles are considered of the same size and are about 10 nm. The OML theory was used as
model of the charging of dust particles. The ratio of dust surface potential in non-equilibrium plas-
ma medium to dust surface potential in equilibrium plasma medium was calculated. It was estab-
lished that the dust surface potential in non-equilibrium plasma exceeds for many times the surface
potential in equilibrium plasma medium and depend on plasma ions composition but with the rais-
ing of temperature this ratio decreases.