SAPHYR: A CODE SYSTEM FROM REACTOR DESIGN TO REFERENCE CALCULATIONS

In this paper we briefly present the package SAPHYR [1] (in French, Advanced System for Reactor Physics) which is devoted to reactor calculations, safety analysis and design. This package is composed of three main codes: APOLLO2 [2] for lattice calculations, CRONOS2 [3] for whole core neutronic calculations and FLICA4 [4] for thermalhydraulics. A brief presentation of each of those components is done in the full paper. The code system is presented in the poster session and a demonstration is provided on a personal computer, for interesting situations (Reactivity Insertion Accident…).