The Equipment for Testing of Measuring Devices at the Low-level Radon Activity Concentration

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Equipment for Testing of Measuring Devices at the Low-level Radon Activity Concentration

Popis výsledku v původním jazyce

The National Institute for Nuclear, Biological, and Chemical protection has developed under the European project 16ENV10 MetroRADON (European metrology program for innovation and research, EMPIR) the unique equipment for testing of devices at low-level radon activity concentration. The equipment consists of airtight Low-Level Radon Chamber (LLRCH) with an inner volume of 324 liters; flow-through source of Rn-222 type RF 5 with activity 4.955 kBq of Ra-226 which was also developed within the mentioned project by Czech Metrological Institute; and the air pressure bottle as the source of air free from the radon. The mass flow controller of type Bronkhorst EL-Flow is the part of the apparatus and ensures the requested air flow through the radon source to the chamber. The homogeneity of the inner atmosphere in the chamber is ensured by the help of the continuously regulated fan which allows setting up of air flow in the range from 0,1 m/s to 3,5 m/s. The component of the chamber is among other the measuring device of climatic conditions for measuring temperature, air pressure, and relative humidity. The construction of the equipment allows the maintaining of time stable radon activity concentration on the precise level for several days. It is possible to arbitrarily and continuously set up values of radon concentration in the range from 100 Bq.m-3 to 300 Bq.m-3.

Název v anglickém jazyce

The Equipment for Testing of Measuring Devices at the Low-level Radon Activity Concentration

Popis výsledku anglicky

The National Institute for Nuclear, Biological, and Chemical protection has developed under the European project 16ENV10 MetroRADON (European metrology program for innovation and research, EMPIR) the unique equipment for testing of devices at low-level radon activity concentration. The equipment consists of airtight Low-Level Radon Chamber (LLRCH) with an inner volume of 324 liters; flow-through source of Rn-222 type RF 5 with activity 4.955 kBq of Ra-226 which was also developed within the mentioned project by Czech Metrological Institute; and the air pressure bottle as the source of air free from the radon. The mass flow controller of type Bronkhorst EL-Flow is the part of the apparatus and ensures the requested air flow through the radon source to the chamber. The homogeneity of the inner atmosphere in the chamber is ensured by the help of the continuously regulated fan which allows setting up of air flow in the range from 0,1 m/s to 3,5 m/s. The component of the chamber is among other the measuring device of climatic conditions for measuring temperature, air pressure, and relative humidity. The construction of the equipment allows the maintaining of time stable radon activity concentration on the precise level for several days. It is possible to arbitrarily and continuously set up values of radon concentration in the range from 100 Bq.m-3 to 300 Bq.m-3.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10304 - Nuclear physics

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

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