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Katase Akira; Matsumoto, Yuzuru; Sakae, Takeji; Ishibashi, Kenji
Health Physics: March 1988
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The distribution of 220Rn atoms in a room was derived from the diffusion equation. The activity concentrations of 212Pb and 212Bi were obtained in relation to 220Rn exhalation rate from a concrete wall. Near the surface of the concrete wall, the radiation exposure due to inhalation of 220Rn decay products may be significant in some cases.

©1988Health Physics Society