Geological materials usually contaminated with naturally occurring radioactive materials (NORM) have become a focus of great attention.The radioactivity concentrations of 226Ra, 232Th and 40K in some ornamental stones in Egypt, were measured using a high-resolution voyage et cie discount code gamma ray spectrometer.The natural radionuclide contents, (Ra) equivalent activities and various hazard indices were also calculated to assess the radiation hazard.It was found that none of the results exceed the recommended limit value.
All samples under investigation are within the recommended safety hot xxl festival 2023 lineup price limit and do not pose significant radiation hazards.Keywords: Ornamental stone, Natural radioactivity, Absorbed dose, Marble, Granite, Serpentine.