Abstract
In controlling natural radiation exposure for the residents of dwellings, it is necessary to determine the levels of natural radioactivity (external exposure) and radon exhalation rate (internal exposure) from building materials. In this paper uranium (238U) and thorium (232Th) content were measured in different building material samples using two different techniques: first, using Jeol high resolution inductively coupled plasma mass spectrometer HR-ICP-MS (plasmax2); and, secondly, using solid state nuclear track detectors SSNTDs. There was a good agreement between the measurements of uranium and thorium with both methods. Exhalation rate and emanation coefficient of radon in several building material samples were determined using LR-115 polymeric nuclear track detectors. Radon exhalation rate varied from; 11.83mBqm−2h−1 in Red Clay Brick to 36.86mBqm−2h−1 in Granite. A series of equations were used to estimate indoor radon exposure and annual effective doses in some models typical room of Egyptian house.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
