Precise measurement of the K-shell internal conversion coefficient of the 344-kev, E2 transition in Gd152 Schupp, Guy Hatch, E.
dc.contributor.department Ames Laboratory 2018-02-13T16:23:12.000 2020-06-29T23:20:08Z 2020-06-29T23:20:08Z 2013-10-25 1962-08-01
dc.description.abstract <p>A value of 0. 0283 ± 0. 0008 was obtained for the K- shell internal conversion coefficient, a<sub>K</sub>, of the 344-kev, E2 transition in Gd<sup>152</sup> using an electron-electron coincidence method. This value is relative to a value of 1.135 ± 0. 010 for the total internal conversion coefficient, a, of the 122-kev, E2 transition in Sm<sup>152</sup> . a<sub>.K</sub>/a ratios of 0. 786 ± 0. 004 and 0. 589 ± 0. 003 were measured for the 344- and 122-kev transitions, respectively. The apparent 9% discrepancy with theory for a<sub>K</sub> of the 344-kev transition is not explained. The result is in excellent agreement with another measurement and also in agreement with an apparent lower trend for a<sub>K</sub>'s of E2 transitions in near spherical nuclei. The a<sub>K</sub> value for the 122-kev transition is in good agreement with theory. Additional measurements were performed on the 123- and 87-kev, E2 transitions in Gd<sup>154</sup> and Dy<sup>160</sup>, respectively, and a<sub>K</sub>/a ratios of 0. 531 ± 0. 007 and 0. 341 ± 0. 011 were obtained. Construction and performance of the beta-ray spectrometers used in these coincidence measurements are described along with limitations of the experimental technique.</p>
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dc.identifier.articleid 1049
dc.identifier.contextkey 4766078
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dc.identifier.submissionpath ameslab_isreports/48
dc.language.iso en
dc.relation.ispartofseries IS-590
dc.source.bitstream archive/|||Sat Jan 15 00:26:41 UTC 2022
dc.subject.disciplines Nuclear Engineering
dc.title Precise measurement of the K-shell internal conversion coefficient of the 344-kev, E2 transition in Gd152
dc.type article
dc.type.genre report
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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