Measurements of L X-ray fluorescence cross sections in rare-earth elements
- 14 August 1987
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 20 (15) , 3705-3714
- https://doi.org/10.1088/0022-3700/20/15/018
Abstract
The L XRF cross sections sigma xLi (i=l. alpha . beta , gamma ), have been measured for all rare-earth elements with Z=60-71, except for Z=61 and 63, at excitation energies of 17.80 and 25.80 keV. Measurements have been performed using an X-ray tube with a secondary exciter system as the excitation source. Experimental results have been compared with theoretically calculated values and other available experimental results of L XRF cross sections. The experimental results are higher than the theoretical estimates. This necessitates the remeasurement of physical parameters such as fluorescence yield and X-ray emission rates.Keywords
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