SEDL / STP / STP1550-EB / STP155020120016

Uncertainty-Accounted Calculational–Experimental Approach for Improved Conservative Evaluations of VVER RPV Radiation Loading Parameters

Borodkin, P. G.
Scientific and Engineering Centre for Nuclear and Radiation Safety (SEC NRS), Moscow,

Borodkin, G. I.
Scientific and Engineering Centre for Nuclear and Radiation Safety (SEC NRS), Moscow,

Khrennikov, N. N.
Scientific and Engineering Centre for Nuclear and Radiation Safety (SEC NRS), Moscow,

Pages: 10    Published: Aug 2012

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Abstract

The approach of improved uncertainty-accounted conservative evaluation of vodo-vodyanoi energetichesky reactor (VVER) (reactor-) pressure-vessel (RPV) radiation loading parameters has been proposed. This approach is based on the calculational–experimental procedure, which takes into account C/E ratio, depending on over- or underestimation, and uncertainties of measured and calculated results. An application of elaborated approach to the full-scale ex-vessel neutron dosimetry experiments on Russian VVERs combined with neutron-transport calculations has been demonstrated in the paper.