Tenth dosimetry intercomparison study, August 27--September 7, 1973

The tenth in the continuing series of Dosimetry Intercomparison Studies was held from August 27 -September 7, 1973.The ORNL Health Physics Research Reactor, operated in the pulse mode, served as the fission source.Three different neutron and gamma spectra were used to simulate nuclear accidents.Detectors used as area monitors, as well as personnel monitoring badges were intercompared under a set of standard conditions.Results of the experiment indicated that reported values of fast neutron dose were within a standard deviation of 33% for all pulses, while gamma-ray measurements were within ± 29% at one standard deviation The tenth in the series of Dosimetry Intercomparison Studies was conducted at the Oak Ridge National Laboratory's DOSAR Facility during the period August 27 -September 7, 1973-Studies of this type are conducted annually and are generally comprised of participants from laboratories in the United States as well as several foreign countries, This series of experiments, which began in 1964, was established for the following reasons: (1) wide interest at ORNL in the field of dosimetry for human exposures, (2) a lack of adequate dose determinations for persons exposed during criticality accidents, (3) the necessity for developing guidelines in instrumentation and procedures, and (4) the need for standardized radiation fields whose characteristics, such as energy spectrum, intensity, and uniformity, had been determined using widely