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Activation analysis of rocks and ores using gamma-ray inelastic scattering reactions

  • Materials Analysis
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Abstract

A cycle of the theoretical and experimental works has been carried out for determination of the activation analysis of mineral products using gamma-ray inelastic scattering reaction. The interference factor effect was studied. High-intensity waveguide linac LUE-8-5A type is used for the sample activation. The determination limit of elements using the isomeric states is 10−4 to 10−5 wt.% at the energy of the upper boundary of the bremsstrahlung (8 MeV). For the automatic search of the optimal analysis conditions an algorithm and computer program is developed. A geometry of the sample irradiation and measurement of its induced activity is proposed which ensures the uniform activation of a material of 500 g weight and effective measurement of the gamma-radiation of the induced activity with two NaI(Tl) crystals. The results of the above studies were used to construct a completely automatic inductrial facility for the photon-activation analysis of the geological materials. The output of the facility in the regime of the gold determination exceeds 300 000 analyses per year at the capability of analyzing up to 3000 samples per twenty four hours.

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Authors and Affiliations

  1. All Union Research Institute of Radiation Technics State Committee on Use of Atomic Energy, Moscow, USSR

    I. N. Ivanov, Yu. N. Bourmistenko & Yu. V. Feoktistov

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  1. I. N. Ivanov
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  2. Yu. N. Bourmistenko
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  3. Yu. V. Feoktistov
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Ivanov, I.N., Bourmistenko, Y.N. & Feoktistov, Y.V. Activation analysis of rocks and ores using gamma-ray inelastic scattering reactions. J. Radioanal. Chem. 72, 145–154 (1982). https://doi.org/10.1007/BF02516781

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