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PRODUCTION OF WEIGHABLE AMOUNTS OF Tc$sup 99$ BY NEUTRON IRRADIATION OF MOLYBDENUM

V.I. Spitsyn, A.F. Kuzina

Abstract

Various methods of technetium recovery from molybdenum anhydrides, irradiated by thermal neutrons in nuclear reactor, were studied. A method for technetium concentration and recovery was developed by coprecipitation of technetium with phosphate followed by chromatographic purification. The laboratory method succeeded in producing several milligrams of Tc/sup 99/. Spectral analysis was made for identification of the recovered technetium, and measurements were made of the absolute activity and its B-ray energy maximum. The chemical properties of technetium were studied. (tr-auth)

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Key concepts: Radiochemistry, Technetium, Coprecipitation, Molybdenum, Neutron temperature, Chemistry, Irradiation, Nuclear chemistry