Abstract
The world’s first nuclear power plant operated for almost 48 years. Over this period of time, the neutron fluence on the graphite masonry reached ∼1022 cm−2, which resulted in activation of the impurities present in the graphite. During operation, incidents occurred with loss of seal and sometimes loss of integrity of the fuel-element claddings in some cells and particles of the fuel and steam-water mixture entered the graphite masonry. This resulted in radiation contamination with a complex radionuclide composition. Experimental information about the content and distribution of radionuclides in the spent nuclear graphite is needed in order to plan methods and periods of time for disassembly and salvaging of the graphite masonry of the stopped reactor taking account of the dose loads on the workers and the ecological safety norms.
The problems which can be solved on the basis of the present work included the determination of the 14C and 3H contents by liquid-scintillation β spectrometry, analysis of the actinide content by direct γ spectrometry, and neutron-activation analysis followed by γ spectrometry. These investigation yielded new data on the content of fission products and activation impurities in graphite.
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A. V. Bushuev, Yu. M. Verzilov, E. V. Petrova, et al., “Experimental determination of the spent graphite radioactive contamination at plutonium-production reactors of the Siberian Group of Chemical Enterprises (Tomsk-7),” Nucl. Technol., 140, 51–61 (2002).
A. V. Bushev, T. B. Aleeva, E. V. Petrova, et al., “Possibility of salvaging spent sleeve graphite from the reactors at the Siberian Integrated Chemical Plant by burning,” At. Énerg., 94, No. 2, 130–138 (2003).
G. N. Ushakov, First Nuclear Power Plant. Construction and Operation Experience, Gosénergoizdat, Moscow (1959).
Measurement of the 3 H and 14 C Content in Samples of Reactor Graphite by Liquid Scintillation Radiometry, Certification No. 40090.82930, April 9, 1998. State Scientific Metrology Center of VNIIFTRI Gosstandarta Rossii.
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Translated from Atomnaya Énergiya, Vol. 101, No. 5, pp. 358–364, November, 2006.
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Bushuev, A.V., Petrova, E.V., Kozhin, A.F. et al. Investigation of radioactive contamination of graphite samples from the AM reactor. At Energy 101, 816–821 (2006). https://doi.org/10.1007/s10512-006-0174-5
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DOI: https://doi.org/10.1007/s10512-006-0174-5