Radon dose assessment in underground mines in Brazil.
作者： T. O. Santos , Z. Rocha , P. Cruz , V. A. Gouvea , J. B. Siqueira
DOI: 10.1093/RPD/NCU066
关键词:
摘要: Underground miners are internally exposed to radon, thoron and their short-lived decay products during the mineral processing. There is also an external exposure due gamma emitters present in rock dust of mine. However, radon recognised as main radiation health risk. When inhaled, they deposited respiratory system may cause lung cancer. To address this concern, concentration measurements its progeny were performed, equilibrium factor was determined effective dose received estimated six Brazilian underground mines. The measured by using E-PERM, AlphaGUARD CR-39 detectors. DOSEman. annual for according United Nations Scientific Committee on Effects Atomic Radiation methodologies. mean value 0.4. workers' ranged from 1 21 mSv a(-1) (mean 9 a(-1)).
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