Determination of Electron Collision of Cross-Sections for the H2 Molecule for Plasma Discharge Simulation

Momentum transfer cross-section, rotational cross-sections, vibrational cross-sections, and electronic excitation cross-sections for H-2 molecule for plasma discharge simulation have been determined from measured and calculated electron transport coefficients in H-2-Ar mixtures and in pure H-2 gas at 293 K using the electron swarm study and the two-term approximation Boltzmann solution for energy. The set of electron collisions cross-sections for H-2 molecule reproduced the experimental transport coefficients in pure H-2 gas and in 0.5% and 4% H-2-Ar mixtures. The reproduced transport coefficients such as electron drift velocity (W), longitudinal diffusion coefficient per mobility ratio (D-L/mu), transverse diffusion coefficient per mobility ratio (D-T/mu) and ionization coefficient per density ratio (alpha/N) in pure H-2 gas and W, D-T/mu in H-2-Ar mixtures were within +/- 5% deviation from experimental results. The cross-section set also yielded drift velocity in 10.91% H-2-He mixture within 0-2%.