Radiation attenuation on labyrinth design bunker using Iridium-192 source

Gamma rays are better absorbed by materials with high atomic numbersand high density. Steel, lead, depleted uranium, concrete, water or sand can be used as gamma shielding. Lead and steel are normally used for making doors of the bunkerand to reduce radiation scatter. Depleted uraniumis used for gamma container. Water is used in nuclear reactoras neutron and gamma absorber. Sand is used for mobile hot cell. However concrete is the most common and cheap material for gamma radiation bunker. In this research, concrete made from hematiteaggregates was used to make chevron blocks for a temporary construction of labyrinth bunker. This paper explains and discusses the gamma attenuation around labyrinth bunkerwith concrete containing hematiteaggregates.