Spectrum of doubly ionized xenon (Xe III)

The spectrum of doubly ionized xenon has been investigated. The study is based on photographic recordings of xenon spectra in the 490-8900 Å range. The number of classified lines has been increased from about 300 to about 1400. The lines have been classified as transitions between 73 even levels belonging to the 5 s 2 5 p 4 , 5 s 2 5 p 3 6 p , 4 f , 5 f and 5 s 0 5 p 6 configurations, and 83 odd levels belonging to the 5 s 5 p 5 , 5 s 2 5 p 3 6 s , 7 s , 5 d and 6 d configurations. In particular, the classifications include most of the Xe III laser lines. The experimentally observed level structures are compared with the results of Hartree-Fock calculations and least-squares fits. A comparison is also made between the results of the present analysis and the published data on the Xe N 4,5 OO Auger spectrum.