TY  - JOUR
AU  - Musa, Muhammad Auwal 
AU  - Funtua, Idris Isa 
AU  - Malam, Simon Peter 
AU  - Arabi, Abdullahi Suleiman 
PY  - 2011
TI  - Determination of Absorbed and Effective Dose from Natural Background Radiation around a Nuclear Research Facility
JF  - American Journal of Environmental Sciences
VL  - 7
IS  - 2
DO  - 10.3844/ajessp.2011.173.177
UR  - https://thescipub.com/abstract/ajessp.2011.173.177
AB  - 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.