Radiation Protection Dosimetry Advance Access originally published online on November 30, 2004
Radiation Protection Dosimetry 2005 113(2):218-222; doi:10.1093/rpd/nch434
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Scientific Note
Natural radioactivity in some building materials in Cuba and their contribution to the indoor gamma dose rate
1 Environmental Engineering Centre, Radioactivity Measurement Laboratory, Ave. Finlay km 2.5 Esquina Circunvalación, Rpto. Puerto Príncipe, Camagüey, Cuba
2 Centre for Radiation Protection and Hygiene, 20 St. No. 4109, Miramar, PO Box 6195, Havana 6, Havana City, Cuba
* Corresponding author: o.brigido{at}ciac.cmw.inf.cu
Received October 22 2004, amended and accepted November 8, 2004
The natural radioactivity of some building materials commonly used in Cuba was measured by gamma spectrometry. Typical concentrations encountered so far encountered are in the ranges: 472511 Bq kg1 for 40K; 971 Bq kg1 for 226Ra; and 238 Bq kg1 for 232Th. The external gamma ray absorbed doses in indoor air and the corresponding effective dose-equivalents in a typical dwelling are presented in this paper.