Speaker
Dr
Nemangwele Fhulufhelo
(University of Venda)
Description
Deterioration of pavement condition near and on the speed, bumps is observed throughout South Africa, mainly in rural and townships area. The material used to construct those speed bumps is found to be radioactive with a considerable dose rate of 0.9μSv/h compared to the 1000μSv annual limit for radiation exposure for a public member. The hazard posed by skin exposure from Ra-226 is, therefore, due primarily to its daughter products which include several high-energy alpha, beta, and gamma emissions. Beta radiation significantly contributes to skin dose at the nominal skin depth of 70 μm from Ra-226 and its progeny.
Keywords: Ra-226, Skin exposure, Beta radiation, Dose rate, Construction material
Level for award;(Hons, MSc, PhD, N/A)?
N/A
| Apply to be considered for a student ; award (Yes / No)? | No |
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Primary author
Dr
Nemangwele Fhulufhelo
(University of Venda)
Co-author
Mr
Tshenzhemo Mudau
(Univeristy of Venda)
