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Czech primary radon measurement equipment.

Ivo Burian¹, Petr Otahal, Josef Vosahlik

¹National Institute for Nuclear, Chemical and Biological Protection, Kamenná 71, 262 31 Milín, Czech Republic. burian@sujchbo.cz

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|April 13, 2011

Summary

The Authorized Metrological Centre (AMS) now has a new radon-aerosol chamber for calibrating radon and radon decay product (RnDP) measuring devices. This facility ensures accurate radon measurements by controlling key environmental parameters.

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Area of Science:

Environmental Science
Metrology
Radiological Protection

Background:

The Authorized Metrological Centre (AMS) is crucial for metrological traceability in the Czech Republic.
Accurate measurement of radon and radon decay products (RnDP) is essential for public health and safety.
Calibration of measuring devices requires stable environmental conditions, including radon and RnDP concentrations.

Purpose of the Study:

To introduce a new radon-aerosol chamber facility.
To enhance the capabilities for evaluating and calibrating radon and RnDP measuring devices.
To ensure metrological traceability for radon measurements in the Czech Republic.

Main Methods:

Construction of a new AMS radon-aerosol chamber with a 10 m³ walk-in testing chamber and a 0.3 m³ handling box.
Implementation of controls for environmental parameters: temperature, air pressure, relative humidity.
Integration of systems for monitoring aerosol particle concentration, size distribution, and air velocity.

Main Results:

The new chamber provides a controlled environment for radon and RnDP measurements.
The facility allows for precise calibration of devices measuring radon and its decay products.
Enhanced control over environmental factors ensures reliable metrological traceability.

Conclusions:

The new radon-aerosol chamber significantly improves the AMS's capacity for radon metrology.
This facility supports the accurate assessment of radon exposure and related health risks.
The chamber is vital for maintaining national standards in radon measurement and calibration.