Abstract:
:Radionuclide concentrations of ²²⁶Ra, ²³²Th and ⁴⁰K in different types of building materials used in Egypt were measured using gamma-ray spectroscopy. The results showed relatively moderate radionuclide concentrations for all samples except granite, which showed extremely high concentrations of 78.75 ± 2.36, 2.82 ± 0.11 and 2.37 ± 0.07 kBq kg⁻¹ for ²²⁶Ra, ²³²Th and ⁴⁰K, respectively. The radiological hazard indexes of radium equivalent activity (Raeq), external hazard index (Hex) and internal hazard index (Hin), due to the presence of those radionuclides in the investigated building materials, were calculated. The released radon from the selected samples was measured using the AlphaGUARD radon monitor in order to use its value to calculate the radon emanation coefficient and the radon exhalation rate. The alpha equivalent dose (dose from indoor radon generated from building materials) was calculated using the measured values of the radium concentration and the radon emanation coefficient.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Hassan NM,Mansour NA,Fayez-Hassan Mdoi
10.1093/rpd/nct129subject
Has Abstractpub_date
2013-12-01 00:00:00pages
214-20issue
2eissn
0144-8420issn
1742-3406pii
nct129journal_volume
157pub_type
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