Spatial distribution of radon in an experimental room
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Author (Corporation)
Publication date
16.11.2024
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Type
01A - Journal article
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Parent work
Journal of Environmental Radioactivity
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Volume
280
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Pages / Duration
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Elsevier
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Abstract
The spatial distribution of radon and the relevance of the placement of radon detectors relative to the entry path of radon-containing air in an experimental room was investigated. A radon emanation source was used from which the air was transported with a constant air flow into the room. The radon contaminated air was released under a floor element used for electrical wiring which has multiple holes connecting to the inner volume of the room. At 36 equally spaced lattice points in the room the radon activity concentration was measured with two different solid-state nuclear track detectors of type Radonova Radtrak and Radonova Rapidos. The radon exposure on the detectors was accumulated over 72 days. Additionally, an electronic measurement device of type Saphymo AlphaGUARD was used as reference. It indicated a radon exposition of 475(1) kBq.h/m3. The detectors of type Radtrak had a mean exposition of 564(36) kBq.h/m3 and the ones of type Rapidos 496(15) kBq.h/m3. Except for one outlier both types of detector showed a homogeneous distribution of radon in the room. Therefore, we have shown that under these experimental conditions the placement of the radon detector does not significantly influence the measurement result.
Keywords
Spatial radon distribution, Radon mitigation, SSNTD
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ISBN
ISSN
0265-931X
1879-1700
1879-1700
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Hybrid
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Citation
Grapentin, R., Geiser, A., & Blaser Zürcher, R. (2024). Spatial distribution of radon in an experimental room. Journal of Environmental Radioactivity, 280. https://doi.org/10.1016/j.jenvrad.2024.107567