Morakinyo, R. O. and Usikalu, M.R. and Orosun, Muyiwa Michael (2022) Evaluation of background radiation of Maryland School complex, Lagos, Nigeria. In: 5th International Conference on Science and Sustainable Development, 2022, Online.
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Abstract
The background radiation of Maryland School Complex was taken using RS-125 hand-held gamma spectrometer. The average concentration of the measured radionuclides were 19.16, 46.14, 165.00 Bq/kg for 238U, 232Thand 40K, respectively. The average value of measured dose rate and the estimated dose rate were 44.93 and 43.55Bq/kg. The mean values of the estimated radiological parameter were 53.45, 213.78μSv/y for indoor and outdoor annual effective dose. The excess lifetime cancer risk averaged 0.17, the hazard indices were 0.26 and 0.32 for external and internal respectively. The annual gonadal dose and radium equivalent were 303.90 μSv/y and 97.85 Bq/kg, while the gamma representative index was 0.69. The mean concentration of radionuclides measured and the estimated radiological parameter were within the recommended values. This therefore follows that the risk of e
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Radionuclides, Dose rate, Hazard indices, Excess lifetime cancer risk, Maryland school complex |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 20 Apr 2022 08:58 |
| Last Modified: | 20 Apr 2022 08:58 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/15814 |
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