دراسة احتمالية لانشطار كدالة لطاقة النيوترونات الساقطة (0، 5-2) MeV للنوي الانشطارية المختلفة

The aim of this study is to study the behavior of fission probability as function of neutrons energy of various fission nucleuses (231Th , 233 Th, 235U, 237U, 239U, 241U, 243U ) at the same energy range of descending neutrons (0.5 to 2 MeV ) The fission probability is considered as a principal effective factor in measuring the fission cross section of fissing materials. In this work we found that, the fissing materials at the energy range of descending neutrons decreased as a result of increasing neutron energy. In this study, we conclude the empirical relations has been calculated by the fitting method in which the probability fission value can be estimated as a function for neutrons energy (0.5MeV-2MeV) and for various fission nucleuses.