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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/VI20152018042" target="_blank" >VI20152018042: Havarijní měřič radioaktivního aerosolu s dálkovým přenosem dat</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Radiation Protection Dosimetry

ISSN

0144-8420

e-ISSN

1742-3406

Svazek periodika

186

Číslo periodika v rámci svazku

2-3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

280-283

Kód UT WoS článku

000530582200027

EID výsledku v databázi Scopus

2-s2.0-85082881432