Solution of the “MIDICORE” VVER-1000 core periphery power distribution Benchmark by KARATE and MCNP
21st Symposium of AER on VVER Reactor Physics and Reactor Safety (2011, Dresden, Germany)
Reactor physics experiments and code validation
Abstract
The ?MIDICORE? VVER-1000 core periphery power distribution benchmark was proposed
by Mr. Mikol?? on the 20th Symposium of AER in Finland in 2010. This MIDICORE
benchmark is a 2D calculation benchmark based on the VVER-1000 reactor core cold state
geometry with taking into account the geometry of explicit radial reflector. The main task of
the benchmark is to test the pin by pin power distribution in selected fuel assemblies at the
periphery of the VVER-1000 core. In this paper we present our results (keff, integral fission
power) calculated by MCNP and the KARATE code system in KFKI-AEKI and the
comparison to the preliminary reference Monte Carlo calculation results made by NRI, Rez.