Equipment for Testing Measuring Devices at a Low-Level Radon Activity Concentration
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70565813%3A_____%2F20%3AN0000024" target="_blank" >RIV/70565813:_____/20:N0000024 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1660-4601/17/6/1904/htm" target="_blank" >https://www.mdpi.com/1660-4601/17/6/1904/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijerph17061904" target="_blank" >10.3390/ijerph17061904</a>
Alternative languages
Result language
angličtina
Original language name
Equipment for Testing Measuring Devices at a Low-Level Radon Activity Concentration
Original language description
The National Institute for Nuclear, Biological, and Chemical Protection, under the European project 16ENV10 MetroRADON (the European metrology program for innovation and research, EMPIR), has developed unique equipment for the testing of measuring devices at low-level radon activity concentrations. The equipment consists particularly of an airtight low-level radon chamber (LLRCH) with an inner volume of 324 liters; a Rn-222 type RF 5 flow-through source with a Ra-226 activity of 4.955 kBq developed by Czech Metrological Institute within the above-mentioned project; and a pressure vessel as a radon-free air source. The mass flow controller of the Bronkhorst EL-Flow type is a part of the apparatus and ensures the requested airflow through the radon source-partialized if necessary-through the chamber. The homogeneity of the atmosphere in the chamber is ensured by means of a continuously regulated fan (airflows in the range of 0.1-3.5 m·s-1 can be established). Another important chamber component is the measuring device of climatic conditions, since temperature, air pressure, and relative humidity must be determined. The construction of the equipment allows the time-stable radon activity concentration to be maintained at a precise level for several days. Radon concentration values can be arbitrarily and continuously set in the range from 100 Bq·m-3 to 300 Bq·m-3.
Czech name
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Czech description
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Classification
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
10700 - Other natural sciences
Result continuities
Project
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Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Environmental Research and Public Health
ISSN
1735-6865
e-ISSN
2008-2304
Volume of the periodical
17
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
1-9
UT code for WoS article
000529342300094
EID of the result in the Scopus database
2-s2.0-85081736327