Intercomparison and intercalibration of passive/active radon and active radon progeny instruments and methods in North America
An intercomparison and intercalibration exercise for radon and radon progeny measurements made with active and passive instruments was held at EML from October 22--30,1992. Twenty-five participants submitted 96 passive integrating devices, eight active devices for radon, and seven integrating devices for potential alpha energy concentration (PAEC). In addition, 40 grab samples for radon progeny analysis were taken by five groups that participated in person during the intercomparison. The results reported to EML indicate that the majority of the participants (70%) obtained mean results within 10% of the EML reference value. Although the instruments used in this exercise are based on different principles of collection and detection, they all appear reliable. However, in some instances there seemed to be some minor problems with quality control and calibration bias. Also, the large counting errors for the PAEC experienced by some of the participants can be minimized by using higher sampling air flow rates without sacrificing instrument portability.
- Research Organization:
- USDOE Environmental Measurements Lab., New York, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 10181437
- Report Number(s):
- EML--554; ON: DE93019730; NC: NONE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
54 ENVIRONMENTAL SCIENCES
540130
ACCURACY
CALIBRATION
DAUGHTER PRODUCTS
ENVIRONMENTAL MEASUREMENTS LABORATORY
GENERAL DETECTORS OR MONITORS AND RADIOMETRIC INSTRUMENTS
INTERLABORATORY COMPARISONS
IONIZATION CHAMBERS
MEASURING INSTRUMENTS
MEASURING METHODS
NORTH AMERICA
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
RADON
SAMPLING
SCINTILLATION COUNTERS