Variance reduction adjustment in Monte Carlo TRIPOLI-4® neutron gamma coupled calculations

• DOI: 10.15669/pnst.4.408
• Publication Date: 2014-11-21T07:42:24Z
• Authors: Odile Petit; Yi-Kang Lee; Cheikh M. Diop
• Keywords: Variance reduction; Neutron Transport

This paper presents a diagnosis tool for the users of TRIPOLI-4 Monte Carlo transport code.The aim is to facilitate adjustment variance reduction scheme when dealing with coupled neutron-photon simulations.Up now, neutron and photon importance functions have been generated independently by biasing both particles was necessary, leading further adjustments user after running first simulation.The idea here combine in fast step map on one hand, production data used simulation other so as provide at once better knowledge important points phase space respect tallies.The highest mesh cells are then derived optionally displayed geometry graphs.The user's intervention consists different possible options defining simulation, light previous results.Finally, simulations involving polyethylene stainless steel slabs investigated: an example use this provided figures merit related tallies compared.