Benchmark core calculations

Abstract

In order to compare reactor physics calculational methods used in various research centers we have calculated the benchraark probleras proposed by the Consultants Heeting on "Preparation of a Programme on Research Reactor Conversions to LEU Instead of HEU”, IAEA, June 1979 in Vienna using our current methods. In this preliminary report we describe the generation of cross sections, burn-up and x-y diffusión calculations.