Kinetics of collision processes in dilute noble gases

Kinetics of collision processes is analyzed for dilute noble gases within a linear approximation. Dilute gas is treated as a chemically reacting mixtu re of dimers and monomers. Two elementary reaction models are analyzed empl oying theoretical rate constants calculated recently from quasiclassical tr ajectories. Stability of stationary states and relaxation of small concentr ation perturbations are treated in terms of linearized kinetic equations. T he results obtained are generalized for heavier noble gases (neon to xenon) . Helium is, because of quantum nature, analyzed separately.