Electron-ion recombination rate constant in dense gaseous Kr/CH4 mixtures

The rate constant of bulk electron-ion recombination is calculated for dense gaseous krypton doped with methane. In the calculations, the electron scattering is modeled by experimental, energy-dependent collision cross-sections. The recombination rate constant is found to increase with increasing methane concentration, due to efficient dissipation of electron energy in vibrationally inelastic e-CH₄ collisions.