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Preparation of ²³⁷U by ²³⁸U(γ,n) photonuclear reaction on an electron accelerator, MT-25 microtron

Author： Sabel’nikov A. Maslov O. Gustova M. Belov A. Dmitriev S.

Publisher： MAIK Nauka/Interperiodica

ISSN： 1066-3622

Source： Radiochemistry, Vol.48, Iss.2, 2006-03, pp. : 186-190

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

²³⁷U was prepared by ²³⁸U(γ,n) reaction on an electron accelerator (MT-25 microtron) at FLNR. The radiation yield of ²³⁷U was 1 Bq/(μA h mg ²³⁸U). ²³⁷U was recovered from the target by collection of recoil nuclei in the solid:solid system. Group I–III element fluorides were used as the ²³⁷U acceptor. ²³⁷U was separated from the fission products by extraction and ion-exchange procedures. The specific activity of ²³⁷U in the sample was 49 500 kBq/mg ²³⁸U. The content of radioactive impurities in the preparation was no higher than 10⁻⁵. The chemical yield of ²³⁷U was 70%.

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