Measurement quality assurance for beta particle calibrations at NIST
- National Institute of Standards and Technology, Gaithersburg, MD (United States)
Standardized beta-particle fields have been established in an international standard and have been adopted for use in several U.S. dosimeter and instrument testing standards. Calibration methods and measurement quality assurance procedures employed at the National Institute of Standards and Technology (NIST) for beta-particle calibrations in these reference fields are discussed. The calibration facility including the NIST-automated extrapolation ionization chamber is described, and some sample results of calibrations are shown. Methods for establishing and maintaining traceability to NIST of secondary laboratories are discussed. Currently, there are problems in finding a good method for routine testing of traceability to NIST. Some examples of past testing methods are given and solutions to this problem are proposed.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (United States)
- OSTI ID:
- 250237
- Report Number(s):
- PNL--10076; CONF-9303220--; ON: DE96008816
- Country of Publication:
- United States
- Language:
- English
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