Theoretical analysis of nuclear pumped metastable XeF

A kinetic model of nuclear pumped metastable XeF is provided, along with a review of previous experimentation. Trials run with a TRIGA reactor source and a laser cell containing Ar, Xe, and NF3 and a B(10)-coated tube employed excitation from the B-10(neutron, alpha)Li-7 reaction. Species which contributed to a 350 nm photon absorption are listed, noting high efficiencies with metastable XeF(B) at low power densities. The kinetic model which was developed includes a characterization of the nuclear pumping energy deposition, the reaction kinetics, and optical extraction. Excitation occurs when the reaction stream of neutrons and ions are slowed by the gas mixture, causing excitation and ionization, and subsequent secondary electrons which create excited species. The model indicates a possibility of achieving an I laser at 1.315 micron.