Low level measurements of thorium and neptunium in environmental samples using the (γ, f) reaction |
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| Authors: | O D Maslov S N Dmitriev L G Molokanova S Yu Tolmachyov |
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| Institution: | (1) Flerov Laboratory, Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia |
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| Abstract: | A new highly sensitive track method for the determination of thorium (232Th) and neptunium (237Np) has been developed. The technique includes the radiochemical separation procedure of the isotopes followed by the irradiation of the resultant samples on the MT-25 microtron. The detection limit is équivalent up to 3·10–13 g of232Th and 7·10–14 of237Np. The method was used to determine232Th and237Np isotopes in water samples. |
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