Natural Radioactivity in Ceramics Building Material  in Iraq Using High Purity Germanium Detector

Tarik Al-Alawy, Iman

	Natural Radioactivity in Ceramics Building Material in Iraq Using High Purity Germanium Detector
Al-Mustansiriyah Journal of Science
Article 1, Volume 24, Issue 3, 2013, Pages 95-106
Author
Iman Tarik Al-Alawy
Abstract
People are exposed to ionizing radiation from the radionuclides that are present in different types of natural sources, of which building materials especially Ceramic is of the most important source. Twenty four samples of Ceramic which are widely used in Iraq as building materials were taken in this work to estimate the radiological impact to the dweller. The activity concentration of radionuclides present in various important Ceramic was analyzed using High Purity Germanium (HPGe) detector as a gamma-spectrometry of (3"×3") crystal dimension at the laboratory of radiation detection and measurement in Education Collage – Ibn Al-Heatham, University of Baghdad. The results showed that the activity concentration of , and was between (20.464 Bq/Kg) Egyptian – (114.530 Bq/Kg) Vietnamese, (14.442 Bq/Kg) Egyptian – (126.349 Bq/Kg) Vietnamese, and between (169.009 Bq/Kg) Lebanese – (1245.200 Bq/Kg) Brazilian respectively. Except the Vietnamese Ceramic sample (C18) which is greater than the maximum permissible limit of Radium equivalent (Raeq). Three samples were found to be greater than unity for internal hazard indices. The highest value of external annual effective dose for indoor was (0.845 mSv/y) for Vietnamese ceramic. Absorbed dose rate and all indoor and outdoor indices also have been calculated in this work

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