04/01820 Fly ash: A radiation shielding material

To support the use of flyash material as a radiation shielding material for gamma or X-rays, the radiation interaction parameters (attenuation coefficients and buildup factors) have been studied as a function of incident photon energy. The attenuation coefficients are found to have large values in low and high energy region whereas the buildup factor values have a maxima in the medium energy region. These variations in attenuation coefficient as well as in the buildup factor in different energy regions, have been interpreted in terms of Z-dependence of partial photon interaction processes and have been presented in the form of graphs.