Application of the Cathare 2 v1.3U code to the analysis of the Pactel GDE-34 experiment relevant to the innovative reactors EU Meeting, London (UK), June 2-3, 1997

Following (and based on) the demonstration of adequate capabilities of Relap5 code in predicting situations which are relevant for the prediction of transient performance advanced reactors, the same activity was planned in relation to the CATHARE code. CATHARE is the French code developed by CEA in Grenoble in cooperation with FRAMATOME and EdF governmental French Companies. UNIPI also contributed to the development of the code (e.g. by sending junior researchers to the CENG Center in Grenoble). The present activity deals with the application of the code to the experiment GDE-34 performed in the Finnish Integral Test Facility (ITF) PACTEL which was modified with the introduction of passive systems, namely Core Make-up Tank (CMT).