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Neutron activation determination of2 3 7Np in irradiated experimental fuels and in waste solutions and distribution studies in sea-water and submarine fauna and flora of disposal areas

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Abstract

The determination of2 3 7Np by activation analysis2 3 7Np(n,γ)2 3 8Np (2. 2. d). Main gamma ray 984.4 keV is disturbed either by highly activable elements or by uranium giving interference. Therefore, a pre-irradiation chemical separation step is used.2 3 7Np determination has been performed in irradiated experimental fuels, waste solutions, nuclear fuel zircaloy sheats and in studies of distribution in sea-water and submarine fauna and flora from disposal sites. The detection limit is 5·10−13 g of2 3 7Np corresponding to 2.5·10−9 mg/kg for 200 ml sea-water sample.

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  1. Institut de Recherche Technologique et de Développement Industriel Division d'Etudes de Retraitement et des Déchets et de Chimie Appliquée Département de Chimie Appliquée et d'Etudes Analytiques Laboratoire Pierre Süe-C.E.N/Saclay, Commissariat à l'Energie Atomique-France, 91191, Gif-sur-Yvette Cedex, (France)

    S. May, Ch. Engelmann & G. Pinte

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  1. S. May
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  2. Ch. Engelmann
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  3. G. Pinte
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May, S., Engelmann, C. & Pinte, G. Neutron activation determination of2 3 7Np in irradiated experimental fuels and in waste solutions and distribution studies in sea-water and submarine fauna and flora of disposal areas. Journal of Radioanalytical and Nuclear Chemistry, Articles 113, 343–350 (1987). https://doi.org/10.1007/BF02050506

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