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Lifetimes of some highly excited levels in the Pb-I spectrum measured by the Hanle method

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Author

Summary, in English

Natural lifetimes of some highly excited levels in the Pb-I spectrum have been measured by the zero field level crossing (Hanle) method. The levels were reached by optical excitation from the metastable 6p2 3P2 and 6p2 3P1 states, were a considerable population had been created by means of adc discharge in a Pb atomic beam. An atomic beam source producing atoms in metastable states is described. For the lifetimes t of the investigated levels we find:t(6p(1/2)6d3D1)=3.74(28) ns,t(6p(1/2)6d3F2)=25.8(1.3) ns,t(6p(1/2)6d3D2)=4.17(-31)(-49) ns,t(6p(1/2)6d3F3)=6.08(26) ns,t(6p(3/2)7s)3P2=5.85(27) ns. These results are compared with lifetimes derived from oscillator strengths given in the literature.

Publishing year

1971

Language

English

Pages

217-235

Publication/Series

Zeitschrift für Physik A Hadrons and Nuclei

Volume

241

Issue

3

Document type

Journal article

Publisher

Springer

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • Physics and Astronomy

Status

Published

ISBN/ISSN/Other

  • ISSN: 0939-7922