An internal dosimetry intercomparison study
| Autor: | Loesch Rm, Hui Te, Raddatz C, Fisher Dr, McDonald Jc |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Epidemiology
Health Toxicology and Mutagenesis Radiation Dosage Standard deviation Consistency (statistics) Occupational Exposure Surveys and Questionnaires Radioactive contamination Statistics Administration Inhalation Medicine Dosimetry Humans Radiology Nuclear Medicine and imaging Internal dosimetry Americium business.industry Mean value Calculation methods Plutonium Cesium Radioisotopes Strontium Radioisotopes Scenario testing business Nuclear medicine Phosphorus Radioisotopes Software |
| Zdroj: | Health physics. 67(3) |
| ISSN: | 0017-9078 |
| Popis: | Pacific Northwest Laboratory performed a study to evaluate the consistency of internal dosimetry assessments. A total of eleven laboratories, including DOE sites and NRC licensees, participated in this intercomparison study. Participants were asked to respond to five actual exposure scenarios, previously used in a similar European study. The participating dosimetrists assessed the data of the test scenarios and calculated results in terms of estimated radionuclide intake and the resulting internal doses. To maintain confidentiality, results are given without identifying any site. Except for one scenario, the results showed that the standard deviation of the final results on committed effective dose equivalent for each exposure scenario was about 30-50% of the mean value, giving a consistency slightly greater variant than 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 applied; and (3) the computational tools used. This represents a preliminary study; further intercomparison testing is needed to fully evaluate the problem of dose-assessment inconsistency. 13 refs., 10 tabs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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