Dust Particle Charging Characteristics under a Collisionless Magneto-Plasma

The study of dust particle charging characteristics under a magneto-plasma has been conducted numerically. The numerical modelling was presented for ion to electron temperature ratio, ε =( T i / T e ), from 0.1 to 1, the dimensionless electron gyroradius ratio, β e = R p / R Be , from 0 to 20, and the effective electron, or negative ion, to positive ion mass ratio, a ε 1/2 = ( T i m e / T e m i ) 1/2 , from 2 ×10 -3 to 0.8. The numerical results show that the dust particles charging characteristics are not significantly influenced by the existence of external magnetic field when β e <1.