• Study nuclear structure for middle and heavy nucleus by IBM model. • Study gamma ray buildup factor in different materials as single and multilayer shielding. • Study effective of irradiation by nuclear radiation on hardness of allowed. • Study natural radiation (U238 , Th232 , U235 and K40) in different materials such as (water, soil, building materials and food) using Gamma spectroscopy. • Study of environmental radiation by Radon and decays in different materials such as (water, air, soil, building materials and food) using RAD-7 and Track detectors.