Gamma Spectral Analyses of Granite Samples

Abstract

Samples of many different kinds of granite were obtained from a local vendor who has naturally occurring samples from all over the world. The samples were massed and the radioactive dose rates were measured for comparison. The gamma energy spectrum of each sample was obtained using a Nal Detector connected to a UCS-30 that was interfaced to a computer. Tables and literature were used to match the energies obtained to the major radioactive isotopes present in each sample. Health implications for large amounts of granite in public areas will be discussed.