Abstract

The decay properties of /sup 188/Pt were investigated with the use of mass-separated sources. Singles and coincidence measurements were made by using x- and ..gamma..-ray Ge(Li) detectors as well as an Si(Li) electron detector. These results were combined with previously available conversion-electron data which had been obtained with a magnetic spectrometer. From this information a level scheme was constructed for /sup 188/Ir. A tentatively proposed level at 317 keV was eliminated on the basis of our results. In addition, several transitions attributed to /sup 188/Pt decay were not observed in the present study. ..cap alpha.. particle and ..gamma..-ray spectra were also measured with the detectors positioned in calibrated geometries. The ..cap alpha..-decay energy and branching ratio of /sup 188/Pt were determined to be 3915 +- 10 keV and (2.8 +- 0.5) x 10/sup -7/, respectively.

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