Investigation of the kinetics of the vibrational excitation of the UF6 molecule by the IR–UV resonance method

An investigation was made of the absorption of ultraviolet radiation in gaseous uranium hexafluonde as a result of the action of high-power radiation on the combination vibration v₂+v₃ of the UF₆ molecule. A considerable increase in the absorption coefficient was observed in the 250–550 nm range. The contrast of the induced absorption exceeded 0.5×10² at the wavelengths of 340 and 420–550 nm. The vibrational–translational and vibrational–vibrational exchange constants were respectively, 26 and 1 μsec·Torr.