Effect of the laser radiation intensity on the kinetics of the heterogeneous photochemical reaction between singlecrystal germanium and bromine gas

Results are presented of an investigation of the heterogeneous photochemical reaction between Ge and Br₂, the Br₂ molecule being excited by λ = 514.5 nm high-poiwer argon laser radiation in the predissociation range. The dependence of the reaction rate on the irradiation intensity has a well-defined nonlinear character. The explanation of this effect is found by analyzing the chemcal kinetics of this reaction. The possibility of utilizing the heterogeneous photochemical reaction between Ge and Br₂ for laser separation of bromine isotopes is discussed.