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|Title:||Measurement of absolute γ-ray emission probabilities in the decay of 227Ac in equilibrium with its progeny|
|Authors:||MAROULI MARIA; LUTTER GUILLAUME; POMME STEFAAN; VAN AMMEL RAF; HULT MIKAEL; PIERRE S.; DRYAK P.; CARCONI P.; FAZIO A.; BRUCHERTSEIFER FRANK; MORGENSTERN ALFRED|
|Citation:||APPLIED RADIATION AND ISOTOPES vol. 144 p. 34-46|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|Type:||Articles in periodicals and books|
|Abstract:||The emission probabilities of γ-rays produced in the 227Ac decay series were determined by high-resolution γ-ray spectrometry of sources with standardised activity. The sources were prepared quantitatively on glass disks by drop deposition of a solution with 227Ac in radioactive equilibrium with its daughter nuclides. Their activity was measured by a primary standardisation technique based on alpha-particle counting at a defined low solid angle. Four laboratories performed γ-ray spectrometry and derived absolute γ-ray intensities. Mean values were calculated and compared with literature data and the currently recommended evaluated data. New values on certain γ-emission probabilities are proposed.|
|JRC Directorate:||Nuclear Safety and Security|
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