Radon exposure at a radioactive waste storage facility
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2014
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Journal of Radiological Protection
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The Waste Management Department of Nuclear and Energy Research Institute
(IPEN) is responsible for the safety management of the waste generated at all
internal research centers and that of other waste producers such as industry,
medical facilities, and universities in Brazil. These waste materials, after
treatment, are placed in an interim storage facility. Among them are 226Ra
needles used in radiotherapy, siliceous cake arising from conversion processes,
and several other classes of waste from the nuclear fuel cycle, which contain
Ra-226 producing 222Rn gas daughter.
In order to estimate the effective dose for workers due to radon inhalation,
the radon concentration at the storage facility has been assessed within this
study. Radon measurements have been carried out through the passive method
with solid-state nuclear track detectors (CR-39) over a period of nine months,
changing detectors every month in order to determine the long-term average
levels of indoor radon concentrations. The radon concentration results, covering
the period from June 2012 to March 2013, varied from 0.55 ± 0.05 to 5.19 ±
0.45 kBq m−3
. The effective dose due to 222Rn inhalation was further assessed
following ICRP Publication 65.
Como referenciar
MANOCCHI, F.H.; CAMPOS, M.P.; DELLAMANO, J.C.; SILVA, G.S. Radon exposure at a radioactive waste storage facility. Journal of Radiological Protection, v. 34, n. 2, p. 339-346, 2014. DOI: 10.1088/0952-4746/34/2/339. Disponível em: http://repositorio.ipen.br/handle/123456789/25424. Acesso em: 18 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.