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Reference instruments based on spectrometric measurement with Lucas Cells.

G Butterweck1, V Schmidt2, H Buchröder2

  • 1Paul Scherrer Institut, Villigen, Switzerland gernot.butterweck@psi.ch.

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Summary
This summary is machine-generated.

Accredited laboratories in Germany and Switzerland enhance radon gas calibration using Lucas Cells and spectrometric analysis. This improves measurement accuracy by compensating for instrumentation fluctuations.

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Area of Science:

  • Environmental Science
  • Metrology
  • Radiation Detection

Background:

  • Bundesamt für Strahlenschutz and Paul Scherrer Institute are accredited calibration laboratories for radon gas.
  • Lucas Cells are used in reference instrumentation due to low environmental dependence.
  • Improving the quality of reference radon activity concentration is crucial.

Purpose of the Study:

  • To describe the reference instrumentation and calibration procedures at two accredited laboratories.
  • To introduce a spectrometric method for enhanced data evaluation in radon measurements.
  • To ensure traceability and present performance test data.

Main Methods:

  • Utilizing Lucas Cells as detectors in reference instrumentation.
  • Applying spectrometric data evaluation with pulse height analysis.
  • Retrospectively analyzing pulse height spectra to correct for instrumentation variations.

Main Results:

  • Detailed description of reference instrumentation and spectrum evaluation procedures.
  • Demonstration of methods for achieving traceability to primary calibration laboratories.
  • Presentation of performance test data validating the improved methodology.

Conclusions:

  • The combined use of Lucas Cells and spectrometric analysis enhances the accuracy of radon gas activity concentration measurements.
  • The described methods ensure high-quality calibration and traceability for radon measurements.
  • Spectrometric evaluation offers a robust approach to compensate for instrumental drift in reference measurements.