Institut Nachhaltigkeit und Energie am Bau

Dauerhafte URI für die Sammlunghttps://irf.fhnw.ch/handle/11654/10

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    Publikation
    Building and characterisation of a radon emanation source using a historical watch painted with radioluminescent paint containing radium
    (Institut Nachhaltigkeit und Energie am Bau, Hochschule für Architektur, Bau und Geomatik FHNW, 27.09.2024) Grapentin, Raphael
    Conducting experiments with 222Rn not always requires a radon emanation source traceable 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.
    05 - Forschungs- oder Arbeitsbericht