New infrared noble gas laser transitions between 3 microns and 18 microns

Nineteen new infrared laser transitions observed in Kr, Ar and Xe ranging from 3.631u to 17.233y are reported and identification of all but one of these transitions has been made. An identification of a previously observed but unidentified transition is given along with a method for assigning term assignment to observed transitions. The design and construction of a high power noble gas laser capable of operating at gas pressures as low as 5y and electric currents as high as 2KA is discussed.