RADIATION SHIELDING MATERIAL CAPABLE OF SIMULTANEOUS SHIELDING OF GAMMA-RAY, X-RAY AND NEUTRON RAY

摘要

PURPOSE:To provide a molded item suitable as a radiation shielding material for simultaneously shielding gamma-ray, X-ray and neutron ray efficiently with high performance. CONSTITUTION:100 pts.wt. of thermosetting resin excellent in shielding of neutron ray is admixed with 50-2000 pts.wt. of high density inorganic substance excellent in gamma-ray and X-ray shielding, e.g. lead oxide or tungsten oxide, and then it is cured and molded with density higher than 2.0 thus obtaining a molded item having high density and high hydrogen atom density which can shielded gamma-ray X-ray and neutron ray simultaneously with high performance. That material is added with a hydrogen occlusion alloy in order to enhance neutron ray shielding performance or added with a defoaming agent at the time of admixing material in order to enhance the density of molded item thus enhancing each shielding performance.