Hyperfine structure studies of the electronic levels of the manganese atom. II. Odd-parity level system

Abstract

The hyperfine structure of 15 spectral lines of the manganese atom was investigated with the method of laser induced fluorescence on an atomic beam. Results of these investigations, supplemented by the results obtained in Part I of this work series, yielded the hyperfine structure constants A and B for altogether 38 odd-parity levels. For 11 levels the A and B values are reported for the first time, for another 10 levels new constants B were evaluated, and for the remaining 17 levels the accuracy of the hitherto available literature data was improved; thus the available database of the hyperfine structure constants for the manganese atom was considerably extended. A semi-empirical fit of the fine and the hyperfine structure for the odd-parity level system of the atomic manganese was also performed in the present work; generally a good agreement between the experimental and the calculated values was found.