Optimization of the radioactive aerosol sampling and measuring procedure with respect to radon concentration in the air

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F19%3AN0000035" target="_blank" >RIV/86652052:_____/19:N0000035 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/rpd/article/186/2-3/280/5681990" target="_blank" >https://academic.oup.com/rpd/article/186/2-3/280/5681990</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/rpd/ncz218" target="_blank" >10.1093/rpd/ncz218</a>

Result language
angličtina
Original language name
Optimization of the radioactive aerosol sampling and measuring procedure with respect to radon concentration in the air
Original language description
High-volume aerosol samplers combined with laboratory analysis using high-resolution gamma ray spectrometry allow determining artificial radionuclides in the atmosphere at sub μBq/m3 levels. A major drawback of this procedure is a significant delay of the analysis result after any potential radioactive contamination deposition on the aerosol filter. Within the scope of the HAMRAD project, an autonomous device was developed in order to increase the sampling and measuring frequency. This approach yields higher detection limits (minimum detectable activity concentration [MDAC]) due to the deposited activity of radon decay products on the filter. In order to quantify the radon effect, a simple mathematical model was developed to predict MDAC for the particular radionuclide of interest for the given background conditions. It was found that MDAC can vary by a factor of ~2 for typical ‘radon’ conditions (~10 Bq/m3) at SÚRO Prague and by a factor up to 5 for high radon concentration (100 Bq/m3).
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)

Project
<a href="/en/project/VI20152018042" target="_blank" >VI20152018042: A device for measurement of radioactive aerosols in emergency situation with remote data transfer</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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