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Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
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Interlaboratory comparisons for passive radon measuring devices at BfS.

T R Beck1, H Buchröder, E Foerster

  • 1Federal Office for Radiation Protection (BfS), Köpenicker Allee 120-130, D-10318 Berlin, Germany. tbeck@bfs.de

Radiation Protection Dosimetry
|June 15, 2007
PubMed
Summary

The German Federal Office for Radiation Protection (BfS) ensures radon measurement quality through annual interlaboratory comparisons. These tests verify the accuracy of passive radon devices used in workplace monitoring.

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Area of Science:

  • Environmental Health
  • Metrology
  • Radiation Protection

Background:

  • Ensuring accurate radon measurements is crucial for public health and regulatory compliance.
  • Passive radon measuring devices are widely used for environmental monitoring.
  • The German Federal Office for Radiation Protection (BfS) has a mandate to oversee radiation safety.

Purpose of the Study:

  • To detail the methodology and outcomes of annual interlaboratory comparisons for passive radon measuring devices.
  • To ensure and document the quality and reliability of radon measurement services in Germany.
  • To comply with national guidelines requiring participation in these quality assurance programs.

Main Methods:

  • Conducting annual interlaboratory comparisons involving various passive radon measuring devices (solid-state nuclear track detectors, electrets, activated charcoal).
  • Exposing devices in a controlled radon calibration laboratory at BfS.
  • Tracing radon activity concentrations back to the national standard maintained by the Physikalisch-Technische Bundesanstalt (PTB).

Main Results:

  • Consistent participation and successful performance in intercomparisons by radon services demonstrate device suitability.
  • The BfS calibration laboratory provides traceable and reliable radon exposure conditions.
  • The program effectively validates the quality of passive radon measurement devices used commercially.

Conclusions:

  • Annual interlaboratory comparisons are effective in ensuring the quality of passive radon measurements.
  • Participation is essential for radon services to demonstrate the reliability of their devices for workplace monitoring.
  • The BfS program upholds high standards for radon detection and measurement in Germany.