Radon decay products attached to clothes in a nuclear laboratory |
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Authors: | M. Balc zar A. Ch vez G. Pi a-Villalpando M. Alfaro D. Mendoza |
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Affiliation: | Instituto Nacional de Investigaciones Nucleares, Apdo. Postal 18-1027, 11801, México D.F., México |
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Abstract: | A whole body counter determined the presence of radioactivities up to 21.8 kBq for 214Bi and up to 18.7 kBq for 214Pb attached to clothes of workers in a Nuclear Research Laboratory. A radon survey reveals that 80% of the monitoring areas have radon concentration values lower than 500 Bq m−3, while 10% of the sampling points with values bigger than 1 kBq m−3 correspond to the workers mentioned above. By exposing samples of 0.04 m2 clothes in a radon chamber, it was observed that radon decay products 214Bi and 214Pb were attached to them with an activity of 315–618 Bq per each kBq m−3 of Rn concentration additionally, fibres characterised with a lower electrostatics build up showed the lower attachment. |
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Keywords: | Radon decay products environmental radon |
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