@article {10.3844/ajessp.2011.173.177, article_type = {journal}, title = {Determination of Absorbed and Effective Dose from Natural Background Radiation around a Nuclear Research Facility}, author = {Musa, Muhammad Auwal and Funtua, Idris Isa and Malam, Simon Peter and Arabi, Abdullahi Suleiman}, volume = {7}, number = {2}, year = {2011}, month = {May}, pages = {173-177}, doi = {10.3844/ajessp.2011.173.177}, url = {https://thescipub.com/abstract/ajessp.2011.173.177}, abstract = {Problem statement: This study presents result of outdoor absorbed dose rate and estimated effective dose from the naturally occurring radionuclides 232Th and 238U series 40K, around a Nuclear Research Reactor at the Centre for Energy Research and Training (CERT), Zaria, Nigeria. Approach: A high-resolution in situ γ-ray spectrometry was used to carry out the study. CERT houses a 30Kw Research Reactor and other neutron and gamma sources for Research and Training. Results: The values of absorbed dose rate in air for 232Th, 238U and 40K range from 8.2 ± 2.5-24.5 ± 3.6 nGy h−1, 1.9 ± 1.2-4.6 ± 2.5 nGy h−1 and 12.2 ± 5-38 ± 6.7n Gy h−1 respectively . The estimated total annual effective dose outdoor for the sites range from 27.3-79.9 µSv y−1.Conclusions: This showed that radiation exposure level for the public is lower than the recommended value of 1 mSv y−1.Hence, the extensive usage of radioactive materials within and around CERT does not appear to have any impact on the radiation burden of the environment.}, journal = {American Journal of Environmental Sciences}, publisher = {Science Publications} }