Strength Function Determinations Using Fast Neutrons
- 15 March 1958
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 109 (6), 2079-2082
- https://doi.org/10.1103/physrev.109.2079
Abstract
Using the reaction as a source of neutrons, strength function determinations have been made on a number of intermediate and heavy elements at average neutron energies between 65 kev and 360 kev. The strength functions are obtained from measurements of the deviation from exponential attenuation of the neutrons passing through a sample of the element being studied. Values of at lower energies exhibit qualitatively the dependence on atomic weight predicted by the optical model, in agreement with previous measurements. For elements in the region , the rapid increase with energy of the obtained assuming only -wave interactions suggests appreciable -wave interactions are taking place. The data for these elements have been analyzed to yield .
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