Accurate Transition Rates for the 5p-5s Transitions in Kr I

Published

August 1, 2000

Author(s)

Krzysztof Dzierzega, U Volz, Gillian Nave, Ulf Griesmann

Abstract

Branching fractions were measured for electric dipole transitions for the 5p upper levels to the 5s levels in neutral Krypton atoms. The measurements were made with a wall-stabilized electric arc for the spectral lines in the visible, and with a hollow cathode lamp and the NIST 2m - Fourier transform spectrometer for the lines in the near infrared. A semi-empirical calculation, based on accurately known lifetimes for six upper levels, was used to calculate lifetimes for which accurate measurements do not exist. This resulted in a complete set of lifetimes for all 5p levels. Branching fractions and lifetimes were used to calculate transition probabilities for 5p-5s transitions. The uncertainties of the transition probabilities range from less than 1% for the strongest lines about 10% for the very weakest lines. Our data also reveal that most of the previous measurements appear to have been affected by opacity effects in the light sources.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

62

Issue

No. 2

Pub Type

Journals

Keywords

atomic, krypton, spectra, transition probability

Citation

Dzierzega, K. , Volz, U. , Nave, G. and Griesmann, U. (2000), Accurate Transition Rates for the 5p-5s Transitions in Kr I, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed May 18, 2024)