199Pt has been produced by neutron irradiation of enriched 198Pt (95.71%) metal powder, and precise measurements have been made of the gamma-ray emission probabilities by means of 4pibeta-gamma coincidence apparatus and a live-timed two-dimensional data-acquisition system. Daughter 199Au decays with a half-life of 3.139 d, and therefore the measured disintegration rate had to be corrected. The absolute emission probability of the 543.0 keV gamma ray was determined to be 0.1174+/-0.0007 from the gamma-ray intensity and the corrected disintegration rate.
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| http://dx.doi.org/10.1016/j.apradiso.2003.11.030 | DOI Listing |
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