Effect of exothermic reactions on the mobility of Ar+ in CF4
Institute of Physics, University of Belgrade - POB 68, 11080 Belgrade, Serbia
Received: 27 May 2015
Accepted: 3 August 2015
In this letter we present a cross-section set and transport properties for Ar+ scattering on CF4 for relative energies up to 1000 eV. Monte Carlo simulation method is applied to accurately calculate transport parameters in hydrodynamic regime. We present new data for Ar+ ions in CF4 as a function of reduced electric fields E/N (N-gas density) where the gas temperature is used as a parameter. Values of the reduced mobility are discussed. Discrepancy of reduced mobility for and from the polarization limit was previously theoretically considered but rarely measured especially in the presence of exothermic reactions. We find that internally resonant exothermic dissociative charge transfer cross-section for production significantly increases zero-field ion mobility with respect to the polarization limit.
PACS: 51.10.+y – Kinetic and transport theory of gases / 52.20.Hv – Atomic, molecular, ion, and heavy-particle collisions / 52.65.Pp – Monte Carlo methods
© EPLA, 2015