Potential of a dust grain in a nitrogen plasma with a condensed disperse phase at room and cryogenic temperatures

摘要: The first numerical study is presented of the self-consistent potential a dust grain in nitrogen plasma with condensed disperse phase at room and cryogenic temperatures high gas pressures for which electron ion transport can be described hydrodynamic approximation. It shown that good accuracy by Debye potential, case, however, screening radius turns out to larger than radius. difference between radii especially large ionization rates (about 1016–1018 cm−3 s−1) temperature. found that, certain range parameters dusty plasma, parameter describing interaction grains exceeds critical value above one would expect formation plasma-dust structures such as Coulomb crystals. For temperature (T=77 K), this significantly wider.