Estimation of the charge of dust particles in a moderate magnetic field

Abstract

The method of assessment of a charge of a dust particle placed in magnetic field is offered in present work. The case of moderate magnetic field when electrons are magnetized but ions are not magnetized is considered. Physical models from the theory of probes are applied to a problem of charging of the dust particle in magnetic field. The flux of ions is calculated in the standard way. The electron diffusion in magnetic field is considered in a formula for their flux. The executed numerical estimates give the value of a dimensionless charge of the granule 1,4 while for absence of magnetic field the charge is equal to 2,2. The received estimates can be used in researches of dust plasma in magnetic field in the absence of adequate theory. Refs 6.