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Workers and dealers in poultry feeds, and commercial farmers may be exposed to elevated gamma radiation doses via internal and external exposure during handling of feeds and manure in farming operations. The measurement and evaluation of internal and external exposure to gamma radiation doses due to the distribution of activity concentrations of 40 K, 226 Ra and 232 Th in starter/grower poultry feeds, finisher poultry feeds and resulting poultry manure is therefore necessary from the radiation protection point of view. The measurement was done using Sodium Iodide activated with Thallium gamma-ray spectrometer. The mean activity concentrations of 40 K, 226 Ra and 232 Th in finisher poultry manure were 382.33±67.12 8.92±3.48 39.20±5.58 respectively, and in finisher poultry feeds were 284.31±27.46 , 15.21±8.88 , 38.43±4.08 . The distribution of 226 Ra was more heterogeneous in all the samples than homogeneous distributions obtained in 40 K and 232 Th. The significant radiation exposure pathway to the farmers is from internal exposure due to inhalation of poultry and manure dust particles.
B.U., Nwaka. 2018. "Activity Concentrations and Gamma Dose rate Levels in Poultry Feeds and Manure used in Ibadan, Nigeria". Global Journal of Science Frontier Research - A: Physics & Space Science GJSFR-A Volume 18 (GJSFR Volume 18 Issue A4).
Crossref Journal DOI 10.17406/GJSFR
Print ISSN 0975-5896
e-ISSN 2249-4626
v1.2
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Total Score: 148
Country: Nigeria
Subject: Global Journal of Science Frontier Research
Authors: B.U., Nwaka, N.N., Jibiri (PhD/Dr. count: 0)
View Count (all-time): 285
Total Views (Real + Logic): 1238
Total Downloads (simulated): 111
Publish Date: 2018 05, Tue
Monthly Totals (Real + Logic):
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