Abstract

The absorption spectrum of atomic krypton in the wavelength region 840–1240 Å has been investigated with a 6.65-m vacuum spectrograph. The expected five ns and nd Rydberg series have been observed. The series have been extended as far as n = 60 for nd (3/2)°1 and n = 59 for nd′(3/2)°1. The ionization energies obtained are 112 914.6 ± 0.1 cm−1 and 118 284.6 ± 0.2 cm−1 for 2P°3/2 and 2P°1/2 states of Kr ii, respectively. Strong interactions have been observed as perturbations and autoionization; a graphical multichannel quantum defect analysis of the observed energy levels is presented.

© 1979 Optical Society of America

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