The Momentum Transfer Cross Section and Transport Coefficients for Low Energy Electrons in Mercury

The momentum transfer cross section for electrons incident on mercury atoms has been determined from the solution of Dirac-Fock scattering equations which included both static and dynamic multipole polarization potentials as well as full anti-symmetrization to incorporate exchange effects. This cross section is in excellent agreement between 0.2 and 3.0 eV with the cross section derived from the most recent experimental measurements. The discrepancy below 0.2 eV has been investigated using two-term transport theory

Interaction Potential and Transport Coefficients for Li+ Ions in Helium

An extended group function model has been applied to determine the interatomic potential for the X 1Σ state of HeLi+, to an accuracy superior to previously determined potentials. The potential has been used to calculate transport coefficients for Li+ io

Cross sections and transport coefficients for electrons in Zn vapour

In this paper we present details of the following: (a) ab initia calculations of a set of electron impact cross sections for atomic Zn; and (b) transport coefficients and distribution functions for an electron swarm in Zn vapour, obtained from a multiterm solution of Boltzmann's equation using these cross sections, over a range of reduced fields, E/N, and gas temperatures of practical interest. Our work has been motivated, in part, by recent suggestions that zinc could be an attractive replacement for mercury in making high-pressure gas discharge lamps more environment-friendly (Born M 2001 J. Phys. D: Appl. Phys. 34 909; Born M 2002 Plasma Sources Sci. Technol. 11 A55). Current models of such lamps require a knowledge of the plasma electrical conductivity, which can be calculated from the (e, Zn) cross sections and mobility coefficients presented in this paper