Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English, Russian   Periodicity: 4 times per year   Open access peer reviewed journal

Full Text (ru)

Abstract: Investigations to determine the influences of geometrical parameters of the calculational VVER-1000 reactor model to the results of internal irradiation condition determination are carried out. It is shown that the values of appropriate sensitivity matrix elements are not dependent on a height coordinate for any core level, but there is their azimuthal dependence. Maximum possible relative biases of neutron fluence due to inexact knowledge of internal geometrical parameters are obtained for the baffle and the barrel.

1. V.N. Bukanov, A.V. Gritsenko, V.L. Demekhin, S.M. Pugach. MCPV software package to calculate the neutron flux functionals acting on the VVER-1000. Preprint KINR-05-6 of Institute for Nuclear Research (Kyiv, 2005) 28 p. (Rus)

2. V.L. Demekhin, A.M. Pugach, V.N. Bukanov. Yadernaya i Radiatsionnaya Bezopasnost' 4 (2007) 41. (Rus)

3. V.L. Demekhin. Determination of radiation exposure of the reactor vessel, based on Bayesian approach: PhD Thesis (Kyiv, 2003) 147 p. (Rus)

4. Regulatory Guide 1.190. Calculational and Dosimetry Methods for Determining Pressure Vessel Neutron Fluence (US Nuclear Research Commission, 2001) 53 p. Paper

5. Encyclopedia of Mathematics, Vol. 5. Slu-Ya (Moskva, Soviet Encyclopedia, 1984) p. 51. (Rus) Google Books