TY - JOUR

T1 - Simulations of Ion Velocity Distribution Functions Taking into Account Both Elastic and Charge Exchange Collisions

AU - Wang, Huihui

AU - Sukhomlinov, Vladimir S.

AU - Kaganovich, Igor D.

AU - Mustafaev, Alexander S.

PY - 2017

Y1 - 2017

N2 - Based on accurate representation of the He+-He angular differential scattering cross sections consisting of both elastic and charge exchange collisions, we performed detailed numerical simulations of the ion velocity distribution functions (IVDF) by Monte Carlo collision method (MCC). The results of simulations are validated by comparison with the experimental data of the ion mobility and the transverse diffusion. The IVDF simulation study shows that due to significant effect of scattering in elastic collisions IVDF cannot be separated into product of two independent IVDFs in the transverse and parallel to the electric field directions.

AB - Based on accurate representation of the He+-He angular differential scattering cross sections consisting of both elastic and charge exchange collisions, we performed detailed numerical simulations of the ion velocity distribution functions (IVDF) by Monte Carlo collision method (MCC). The results of simulations are validated by comparison with the experimental data of the ion mobility and the transverse diffusion. The IVDF simulation study shows that due to significant effect of scattering in elastic collisions IVDF cannot be separated into product of two independent IVDFs in the transverse and parallel to the electric field directions.

KW - Angular differential scattering cross sections

KW - harge exchange collisions

KW - elastic collisions

KW - on velocity distribution functions.

M3 - Article

VL - 26

SP - 1

EP - 10

JO - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

SN - 0963-0252

IS - 2

ER -