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Intercomparison Exercise on Internal Dose Assessment

Final Report of a Joint IAEA–IDEAS Project

English IAEA-TECDOC-1568 978-92-0-106307-6
280 15.00 2007

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All recent intercomparisons of assessment of internal doses have shown a wide variety of evaluation procedures, depending on the training of the dosimetrist as well as on the hardware and software tools. Because of the relevance of the issue for internal dosimetrists, the IAEA organized a new exercise, in cooperation with the IDEAS project "General Guidelines for the Evaluation of Incorporation Monitoring Data", focused especially on the effect of the guidelineson the harmonization of internal dosimetry. Several cases were selected for the exercise with the aim of covering a wide range of practices in the nuclear fuel cycle and in medical applications. The cases were: acute intake of HTO; acute inhalation of fission products 137Cs and 90Sr; intake of 60Co; repeated intakes of 131I; intake of enriched uranium; single intake of plutonium radionuclides and 241Am. A Web based approach was used for the presentation of the cases, collection of responses and potential discussion of the results. Solutions to these cases were reported by 80 participants worldwide. This report presents and discusses the main findings and recommendations for future actions.

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