Modeling of nanoparticle charging processes in plasma and interparticle spacing determination

Using molecular dynamics method the work models dust particle charge determination and potential in low pressure plasma depending on interparticle spacing in the wide range of particle sizes and ion path lengths. Thermal motion of ions, their collision with atoms and ion production due to volume ionization are taken into account. There has been obtained an interparticle spacing determination criterion that corresponds to the maximum dust particle charge verified by experimental data.