Standardization and photon emission probabilities in the decay of 237Np/ 233Pa

The activity concentration of a 237Np solution was determined by 4πα counting, by alpha particle spectroscopy with defined solid angle and by liquid scintillation counting (LSC). These methods yielded results which differ by less than 0.1% from the mean, the relative standard uncertainties being 0.2...

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Bibliographic Details
Published in:Applied radiation and isotopes 2000-04, Vol.52 (4), p.883-889
Main Authors: Schötzig, Ulrich, Schönfeld, Eckart, Janszen, Herbert
Format: Article
Language:English
Subjects:
Activity determination
Gamma-ray emission probabilities
Np-237
Pa-233
X-ray emission probabilities
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Summary:The activity concentration of a 237Np solution was determined by 4πα counting, by alpha particle spectroscopy with defined solid angle and by liquid scintillation counting (LSC). These methods yielded results which differ by less than 0.1% from the mean, the relative standard uncertainties being 0.23% (4πα), 0.27% (LSC) and 0.5% (solid angle). X-ray and gamma-ray emission probabilities of several transitions were measured using semiconductor detectors.
ISSN:0969-8043
1872-9800
DOI:10.1016/S0969-8043(99)00137-2