Spectra and modeling of laser‐induced emission from multiple‐photon (λ=248.4 nm) irradiation of UF6

The laser‐induced emission from KrF‐laser irradiation of gaseous, room temperature UF6 has been studied as a function of time, wavelength, pressure, and laser fluence. Spectra in the 200–900 nm region are presented at several sampling times. One group of 17 emission peaks in the 650–900 nm range has been assigned to the 3Γ6→1Γ7 transition in UF5. A possible kinetic mechanism is presented that is qualitatively consistent with the time‐resolved emission data over the experimental pressures and laser fluences investigated.