A DOE/NRC dosimetry intercomparison study

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:45325

Loesch, R M

A project to evaluate the consistency of internal dosimetry assessments has been jointly undertaken by the Department of Energy (DOE) and the Nuclear Regulatory Commission (NRC) through the Pacific Northwest Laboratory. The focus of this pilot study is to identify problem areas that need to be resolved before establishing an accreditation program in internal dosimetry. A total of eleven laboratories, including DOE sites and NRC licensees, participated in this intercomparison study. A questionnaire consisting of five actual exposure scenarios, previously used in a European Study, was sent to participants for evaluation. The participating dosimetrists assessed the data of the test scenarios and provided results in terms of estimated radionuclide intake and the resulting internal doses. Except for one test case, results show that the standard deviation of the calculated doses for each scenario is within 30% to 50% of the mean value, giving a consistency comparable to that of the European study. The discrepancies can be attributed to variations in (1) the interpretation and statistical treatment of the bioassay data, (2) the biokinetic models used, and (3) the computational tools used. The results of this intercomparison study will provide information for improvements in future test protocols, which may eventually lead to an accreditation program.

• Research Organization: USDOE Assistant Secretary for Environment, Safety, and Health, Washington, DC (United States). Office of Health; USDOE Nevada Field Office, Las Vegas, NV (United States)
• OSTI ID: 45325
• Report Number(s): CONF-9304128--; ON: DE95004507
• Country of Publication: United States
• Language: English

Related Subjects

56 BIOLOGY AND MEDICINE
APPLIED STUDIES
BIOASSAY
COMPARATIVE EVALUATIONS
DOSIMETRY
RADIATION DOSES
RADIATION PROTECTION
RADIONUCLIDE KINETICS
STANDARDIZATION