Abstract
The total conversion coefficient of the 6.2 keV Mössbauer transition in181Ta was measured by X- and gamma-ray spectroscopy. The result of 86 ± 20 disagrees with the literature value of 46, but agrees with theory if a nuclear penetration parameter deduced from relative conversion electron intensities is taken into account. The weak 6.2 keV gamma ray has intensity per decay that is less than the previous value by a factor of 8.5.
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JLC thanks the National Research Council of Canada and the Ontario Department of University Affairs for their support of this research. We thank Prof. A. Seeger and Dr. D. Herlach for the use of the Stuttgart gamma-ray spectroscopy system.
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Campbell, J.L., Martin, B. Internal conversion of the 6.2 keV transition in181Ta. Z Physik A 277, 59–64 (1976). https://doi.org/10.1007/BF01547502
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DOI: https://doi.org/10.1007/BF01547502