The calibration laboratories for the measurement of radon and short-lived radon decay products at the Federal Office for Radiation Protection (BfS)
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P. Hamel
Abstract
In order to guarantee a high level of accuracy in all areas concerned with radon and radon decay products measurement the BfS has established a quality assurance management system. A set of calibration chambers and containers was installed in the laboratories which were subsequently accredited as a German Calibration Service (DKD) Calibration Laboratory for the units of radon and the potential alpha energy concentration of its short-lived decay products. It is traced back to the national standard established at the Physikalisch-Technische Bundesanstalt (PTB), which is at the same time the national institute for science and technology, and the highest technical authority for metrology in Germany. The equipment makes possible scientific investigations as well as calibrations for the measuring quantity “concentration of Rn-222 in air” in the range between 50 Bq/m3 and 100 kBq/m3 and also for the measuring quantity “potential alpha-energy concentration” (PAEC) in the range between 2 MeV/cm3 (3.2 E-7 J/m3) and 4000 MeV/cm31 (*6 .4 E-4 J/m3).
Abstract
Das DKD-Kalibrierlaboratorium des Bundesamtes für Strahlenschutz für die Messgrößen „Aktivitätskonzentration von Radon in der Luft“ sowie „Potentielle Alpha-Energiekonzentration der kurzlebigen Radonzerfallsprodukte, PAEC“ mit seinen technischen Ausrüstungen umfasst eine vorwiegend für Radon-Zerfallsproduktmessungen genutzte 36 m3 Edelstahlkammer sowie verschiedene weitere, insbesondere für Radonmessungen eingesetzte Edelstahlbehälter mit einer umfangreichen internen und peripheren technischen Ausrüstung. Das Kalibrierlaboratorium als zentraler Bestandteil des Qualitütssicherungssystems des BfS auf dem Gebiet der Radon- und der Radonzerfallsproduktmessung ist zurückgeführt auf die nationalen Standards der Physikalisch-Technischen Bundesanstalt. Es ermöglicht wissenschaftliche Untersuchungen sowie Kalibrierungen in den Konzentrationsbereichen von 50 Bq/m3 bis 100 kBq/m3 (Rn-222 in Luft) und 2 MeV/cm3 (3.2 E-7 J/m3) bis 4000 MeV/cm3 (6.4 E-4 J/m3).
References
1 Honig, A.; Paul, A.; Röttger, S.; Keyser, U.: Environmental control of the German radon Reference Chamber. Nucl. Instr. & Meth. 386 (1998)52510.1016/S0168-9002(98)00788-8Search in Google Scholar
2 Paul, A.; Honig, A.; Röttger, S. Keysser, U.: Measurement of radon and radon progenies at the German radon Reference Chamber. Appl. Rad. & Iso. 52 (2000) 36910.1016/S0969-8043(99)00180-3Search in Google Scholar
3 Schuler, Ch. : Das Referenzlabor für Radongas-Konzentrationsmessungen am PSI. PSI-Bericht Nr. 98–08Search in Google Scholar
© 2001 Carl Hanser Verlag, München
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- Requirements for quality assurance from the directive REI Mining and other regulations
- Technical Notes
- TOPFLOW – a new multipurpose thermalhydraulic test facility for the investigation of steady state and transient two phase flow phenomena
- Simulation of subcooled flow instability for high flux research reactors with ATHLET
- Notes
- Note • Mitteilung
- Note • Mitteilung
Articles in the same Issue
- Contents
- Calendar of events
- Calendar of events • Veranstaltungskalender
- Summaries
- Summaries/Kurzfassungen
- Independent qualification of the CIAU tool based on the uncertainty estimate in the prediction of the LOBI test A1-93
- Books
- Beneficial Uses and Production of Isotopes
- Uncertainty and sensitivity analysis with respect to the hydrogen production determined by MELCOR 1.8.4 code during a severe accident
- Notes
- Note • Mitteilung
- Neutronic studies for the second Egyptian research reactor ET-RR-2
- Books • Bücher
- Collision probability calculation in cluster lattices with square outer boundaries
- Fission product isotope ratios as event characterization tools Part I: Particulate debris, isotopic activity ratios
- Books • Bücher
- Technical description of the radiological safety system for X-ray absorption spectroscopy experiments on radioactive samples at the Rossendorf Beamline
- Bücher • Books
- The calibration laboratories for the measurement of radon and short-lived radon decay products at the Federal Office for Radiation Protection (BfS)
- Requirements for quality assurance from the directive REI Mining and other regulations
- Technical Notes
- TOPFLOW – a new multipurpose thermalhydraulic test facility for the investigation of steady state and transient two phase flow phenomena
- Simulation of subcooled flow instability for high flux research reactors with ATHLET
- Notes
- Note • Mitteilung
- Note • Mitteilung
