The lasing mechanism of nuclear-pumped IR lasers at krypton and argon atomic transitions

For studying the lasing mechanism of nuclear-pumped IR lasers at krypton and argon atomic transitions, the kinetics of the plasma process is considered and computations are made for the energy and threshold characteristics of He-Kr (=2.52 m) and He-Ar (=1.79 m) lasers excited by uranium fission fragments. The calculated optimal pressures, mixture compositions, laser output powers and threshold characteristics agree satisfactorily with the experimental ones.