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Effects of environmental conditions on the radon daughters spatial distribution

2002; Elsevier BV; Volume: 35; Issue: 3 Linguagem: Inglês

10.1016/s1350-4487(02)00039-2

1879-0925

M. Godoy, J.C. Hadler N, P.J. Iunes, Shayani Nasab M, Rodrigo Alessandro Nunes de Oliveira, Arto Mustajoki, S.R. Paulo,

Radiation Dose and Imaging

The influence of environmental conditions on the indoor radon daughters spatial distribution is studied both theoretically and experimentally. Simple theoretical calculations indicate that ventilation and variation in the size distribution of aerosols should play an important role influencing the spatial distribution of indoor radon decay products, but experimental results indicate that these environmental factors have little influence on the spatial distribution of radon daughters near the walls of indoor environments. We have observed that the maximum effective range of the plate-out effect varies only between 1 and 3cm in typical dwellings.