Twelve years of neutron personnel dosimetry intercomparison studies at Oak Ridge National Laboratory: What have we learned
To provide an opportunity for dosimetrists to test and calibrate their personnel neutron monitoring systems in a variety of incident radiation fields, the staff of the Dosimetry Applications Research (DOSAR) Facility at the Oak Ridge National Laboratory (ORNL) has conducted personnel dosimetry intercomparison studies (PDIS) periodically since 1974 and annually since 1976 (Si82, Sw87). During these studies, personnel dosimeters are mailed to ORNL, mounted on phantoms and exposed to low-level (less than 15 mSv) dose equivalents in mixed-radiation fields mainly produced using the Health Physics Research Reactor (HPRR) at ORNL (Au65), and then returned to the participants for evaluation. Reported dose equivalents are compared to reference values provided by the DOSAR staff and to results reported by individual organizations which made measurements under identical conditions. These intercomparisons, which require no fee and are open to any organization interested in external personnel dosimetry, have provided more data concerning neutron dosimeter performance characteristics in mixed-radiation fields than any other periodic open test program conducted to date. The following text presents a summary and analysis of neutron dose equivalent measurements reported for the seventh through twelfth intercomparisons (1981-1986) using the HPRR as the source of radiation. Particular factors examined include low dose equivalent sensitivity and measurement accuracy for the basic types of neutron personnel dosimeters. 5 refs., 1 fig.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5348903
- Report Number(s):
- CONF-880404-5; ON: DE88004335
- Country of Publication:
- United States
- Language:
- English
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ALBEDO-NEUTRON DOSEMETERS
COMPARATIVE EVALUATIONS
DIELECTRIC TRACK DETECTORS
DOSE EQUIVALENTS
DOSEMETERS
DOSIMETRY
HISTORICAL ASPECTS
INTERLABORATORY COMPARISONS
INTERNATIONAL ORGANIZATIONS
IRRADIATION
LOW DOSE IRRADIATION
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MOCKUP
NATIONAL ORGANIZATIONS
NEUTRON DOSIMETRY
ORNL
PERSONNEL DOSIMETRY
PHANTOMS
PHOTOGRAPHIC FILM DOSEMETERS
RADIATION DETECTORS
RADIATION PROTECTION
SENSITIVITY
STRUCTURAL MODELS
THERMOLUMINESCENT DOSEMETERS
US AEC
US DOE
US ERDA
US ORGANIZATIONS