Radiation Protection Dosimetry Advance Access originally published online on August 13, 2008
Radiation Protection Dosimetry 2008 131(4):541-544; doi:10.1093/rpd/ncn207
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Natural radioactivity content of granite tiles used in Greece
Division of Inorganic, Physical and Nuclear Chemistry, Department of Chemistry, University of Patras, 26500 Patras, Greece
* Corresponding author: epap{at}chemistry.upatras.gr
Received May 16, 2008, amended June 27, 2008, accepted July 11, 2008
Measurements of 226Ra, 232Th and 40K activity concentrations in commercial granite tiles imported in Greece were performed using gamma-ray spectrometry. The activity concentration of 226Ra, 232Th and 40K ranged from 1 to 434, 2 to 239 and 71 to 1576 Bq kg–1, respectively. The calculated activity concentration index (I) values for all granite samples examined were found to be within the EC limit values for superficial and other materials with restricted use.