F. Abu-Jarad, R. Sextro
Aug 1, 1988
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Influential Citations
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Journal
International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements
Abstract
Abstract Three experiments were carried out the Indoor Air Quality Research House (IAQRH) at Lawrence Barkeley Laboratory, University of California, to study the effect of operating a mixing fan on the radon progeny. In every experiment, about 15 KBq.m-3 of radon was injected into a 36 m3 ordinary room. Measurements were conducted with three different aerosol particle concentrations of about 10 2 , 10 4 and 10 5 per cm3. Real-time measurements of radon and progeny concentrations, particles, and environmental parameters were made through out the experiments. Measurements of plated-out activity on the surfaces of internal walls of the room were measured directly by filter papers and CR-39 nuclear track detectors, while on fan blades CR-39 detectors were used. The ratio of plated-out activity to the total progeny activity in the room varied from 17% to 84%. More than 99% of the plated-out activity was found on walls and less than 1% on fan blades.