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Determination of radon exhalation rates from Canadian building materials with an internal proportional counter

Authors
Journal
International Journal of Radiation Applications and Instrumentation Part D Nuclear Tracks and Radiation Measurements
1359-0189
Publisher
Elsevier
Publication Date
Volume
20
Issue
3
Identifiers
DOI: 10.1016/1359-0189(92)90041-s

Abstract

Abstract Radon exhalation rates of 11 typical Canadian building materials (55 different samples) range from very low (<0.1 nBq g −1 s −1 or <0.1 nBq cm −2 s −1) to moderate (19 nBq g −1 s −1 and 22 nBq cm −2 s −1. Wood, glass, slate and marble have low exhalation rates (≈0.1 nBq g −1 s −1) while ceramic tiles, concrete, fiberglass, gravel and gypsum have mean rates which vary from 0.7 to 5.4 nBq g -1 s −1 and from 0.4 to 5.1 nBq cm −2 s −1. Concrete is the strongest emanator among the materials studied.

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