Determination of Electron Collision of Cross-Sections for the H2Molecule for Plasma Discharge Simulation

Abstract

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 /µ), transverse diffusion coefficient per mobility ratio ( D T /µ) and ionization coefficient per density ratio (α/ N ) in pure H 2 gas and W, D T /µ 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%.