Building and characterisation of a radon emanation source using a historical watch painted with radioluminescent paint containing radium
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Publication date
27.09.2024
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05 - Research report or working paper
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Bundesamt für Bevölkerungsschutz BABS
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Bern
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Abstract
Conducting experiments with 222Rn not always requires a radon emanation source trace-
able to primary standards, often it is sufficient to use a well characterised radium source. In
this work we present the building and characterisation of a radon emanation source using a
watch with radioluminescent paint containing 226Ra. The source with 179±9 kBq 226Ra was
characterised for different air flow rates between 0.05 L/min and 2 L/min. The mean radon
emanation coefficient was 0.54 ± 0.19 while a dependence of radon emanation on relative air
humidity was discovered.
Keywords
Radon, Radon Emanation Source, Radioluminescence
Subject (DDC)
600 - Technik, Medizin, angewandte Wissenschaften
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Language
English
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Yes
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Publication status
Unpublished
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No peer review
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Citation
GRAPENTIN, Raphael, 2024. Building and characterisation of a radon emanation source using a historical watch painted with radioluminescent paint containing radium. Bern: Bundesamt für Bevölkerungsschutz BABS. Verfügbar unter: https://doi.org/10.26041/fhnw-10362