Reference instruments based on spectrometric measurement with Lucas Cells
Autor: | H. Buchröder, E. Hohmann, G. Butterweck, R. Hugi, Sabine Mayer, V. Schmidt, E. Foerster |
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Rok vydání: | 2015 |
Předmět: |
Photomultiplier
Instrumentation Sensitivity and Specificity Reference Values Germany Activity concentration Calibration Radiology Nuclear Medicine and imaging Pulse height Remote sensing Measure (data warehouse) Radiation Radiological and Ultrasound Technology Spectrum Analysis Detector Public Health Environmental and Occupational Health Reproducibility of Results Radon gas Equipment Design General Medicine Equipment Failure Analysis Radon Scintillation Counting Environmental science Switzerland |
Zdroj: | Radiation Protection Dosimetry. 167:298-301 |
ISSN: | 1742-3406 0144-8420 |
Popis: | The Bundesamt für Strahlenschutz (Berlin, Germany) and the Paul Scherrer Institute (Villigen, Switzerland) both operate accredited calibration laboratories for radon gas activity concentration. Both the institutions use Lucas Cells as detector in their reference instrumentation due to the low dependence of this detector type on variations in environmental conditions. As a further measure to improve the quality of the reference activity concentration, a spectrometric method of data evaluation has been applied. The electric pulses from the photomultiplier tube coupled to the Lucas Cells are subjected to a pulse height analysis. The stored pulse height spectra are analysed retrospectively to compensate for fluctuations in the electric parameters of the instrumentation during a measurement. The reference instrumentation of both the laboratories is described with the respective spectrum evaluation procedures. The methods of obtaining traceability to the primary calibration laboratories of Germany and Switzerland and data of performance tests are presented. |
Databáze: | OpenAIRE |
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