FEATURES OF THE SOURCE TERM CALCULATION CAPABILITY OF THE NECP-X CODE

The source term calculation capability is developed for the high-fidelity neutronics code NECP-X. Generally, a full activation library used, but memory requirement unacceptable calculation. In order to minimize during with very strict conditions, new generalized chain compressed method proposed based on influence qualification. One basic compression element reaction channel or an isotope, and of every final results are qualified. To enlarge range application library, effective determine representative problems, which utilizes neutron spectra flux, analyzed. Based ENDF-VII.0, EAF-2010 evaluated nuclear qualification-based method, generated. VERA-3A problem KAIST used assess accuracy efficiency library. 85 measurements decay heat from measurement facilities GE-Morris CLAB validate in show good NECP-X predicting radiation spent fuel significant saving when using