Slowing down of charged particles in the dusty plasmas with a non‐thermal velocity α‐distribution

Abstract

AbstractThe slowing down of a charged particle beam passing through the dusty plasma with a non‐thermal velocity α‐distribution is studied. By using the Fokker‐Planck collision theory, we derive the deceleration factor and slowing down time and make the numerical analyses. We show that the non‐thermal velocity α‐distributions of the plasma components have a significant effect on the slowing down. With increase of the mean velocity, the deceleration factor increases rapidly, reaches a peak and then decreases gradually. And the entire peak of the deceleration factor moves generally to the right with the increase of the α‐parameter. The slowing down time decreases with the increase of the non‐thermal α‐parameter, and so the slowing down time in the non‐thermal dusty plasma is generally less than that in a Maxwellian one.