Measurement of Coster-Kronig and fluorescence yields of the L2and L3subshells of heavy atoms
- 28 June 1988
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 21 (12) , 2295-2309
- https://doi.org/10.1088/0953-4075/21/12/015
Abstract
A K X-ray-L X-ray coincidence technique previously used to measure the Coster-Kronig probability f23 has been extended to include determination of the fluorescence yields omega 2 and omega 3. Removal of experimental errors believed to have generated the scatter in literature data was of particular concern. Measurements were performed for elements with Z=78, 80, 81, 82, 91 and 96. For Z in the region of 80, excellent agreement with Dirac-Hartree-Slater theory is evident for omega 2 and omega 3; however, f23 is systematically lower than predicted. In contrast, for Z>or=92, the theoretical and experimental values for f23 were in quite good agreement while discrepancies became apparent for omega 2 and omega 3.Keywords
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