Radiation background due to radioactive sources in a luminescence dating laboratory

To test the actual dose rate inside our laboratory room, an investigation combining portable dose rate meter, portable NaI(Tl) gamma spectrometry, and blue-OSL dosimetry using Al2O3:C pellets was made. Although our measurements show the presence of X-rays as far as 3 m from the sources, the dose rates are below the safety regulation and does not affect the dating of the sample stored in the same room as the radioactive sources.