Investigation of kaolin - Granite composite bricks for gamma radiation shielding

Gamma radiation shielding properties of baked and unbaked kaolin bricks produced with 0%,10%, 20%, 30%, 40%, 50% of granite have been experimentally and theoretically investigated. A 3 × 3 inches NaI(Ti) detector was employed in the measurement of linear attenuation coefficients. The study concluded that all unbaked samples examined were valid for radiation shielding in terms of their linear attenuation coefficients when compared with the results of other materials. The optimum results for linear and mass attenuation coefficients were obtained from unbaked sample of kaolin brick produced with 50% of micro scale granite.