Modeling elastic momentum transfer cross-sections from mobility data
Institute of Physics, University of Belgrade - Pregrevica 118, Belgrade, Serbia
Received: 3 February 2016
Accepted: 27 April 2016
In this letter we present a new method to simply obtain the elastic momentum transfer cross-section which predicts a maximum of reduced mobility and its sensitivity to the temperature variation at low energies. We first determined the transport cross-section which resembles mobility data for similar closed-shell systems by using the Monte Carlo method. Second, we selected the most probable reactive processes and compiled cross-sections from experimental and theoretical data. At the end, an elastic momentum transfer cross-section is obtained by subtracting the compiled cross-sections from the momentum transfer cross-section, taking into account the effects of the angular scattering distributions. Finally, the cross-section set determined in such a way is used as an input in a final Monte Carlo code run, to calculate the flux and bulk reduced mobility for Ne+ + CF4 which were discussed as functions of the reduced electric field E/N (N is the gas density) for the temperature T = 300 K.
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, 2016