Momentum transfer cross section for oxygen molecule by electron transport coefficients in the O2-Ar mixtures and in pure O 2 molecule

We measured electron transport coefficients, the electron drift velocity, W, and the product of the gas number density and the longitudinal diffusion coefficients, ND_L, in the 1.01% and 4.994% O₂-Ar mixtures and pure O₂ over the range of E/N 0.01~350.0 Td. The measurements have been carried out by the double shutter drift tube method,and a two-term approximation of the Boltzmann equation analysis were used to study electron transport coefficients. We compared measured results and calculated results, and we determined the momentum transfer cross section for O₂ molecules