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Journal Articles Applied Radiation and Isotopes Year : 2020

Measurement of the absolute gamma-ray emission intensities from the decay of 147Nd

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Abstract

The 2011 Decay Data Evaluation Project (DDEP) evaluation for 147Nd includes recommended absolute emission intensities for the two main gamma-rays at 91.105 (2) keV and 531.016 (22) keV of 0.284 (18) and 0.127 (9) respectively, i.e. with uncertainties of 6.3% and 7.1%. These large uncertainties stem from inconsistencies in the published data and are unfit for modern purposes, since the production of 147Nd is used as an important neutron flux dosimeter. The LNE-LNHB has undertaken new absolute gamma-ray emission intensity measurements. The results of these measurements will be presented, along with a full uncertainty budget, and their effect on the recommended data uncertainties will be discussed.
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Dates and versions

cea-03043636 , version 1 (14-12-2020)

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Mark Kellett, L. Vio, Christophe Bobin, Laurine Brondeau, Mikael Cardot-Martin, et al.. Measurement of the absolute gamma-ray emission intensities from the decay of 147Nd. Applied Radiation and Isotopes, 2020, 166, pp.109349. ⟨10.1016/j.apradiso.2020.109349⟩. ⟨cea-03043636⟩
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