Laser-induced emission spectrum of UF5

Results of studies of the laser-induced emission from UF6 irradiated with a KrF laser at 248.4 nm are reported, noting the detection of the electronically excited 3Gamma6 state. The experimental apparatus is described, including operation of the KrF laser at 3-7 Hz repetition rates within the energy range 50-60 mJ output. Emissions were monitored with photomultiplier tubes outside the beam and processed signals were time-resolved or boxcar averaged. Scans were performed with a resolution of 0.87 nm from 200-400 nm and 0.83 nm from 400-900 nm and an example is provided for the average fluence of 0.51 J/sq cm using a gas mixture of 0.19 torr UF6 and 28.45 torr Ar. A single electronic level of 14,647/cm was found for the 17 vibronic levels measured in the near-IR emission. The measured wavelengths are provided, and the existence of 21 unmeasured levels is mentioned.