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Updated: Aug 9, 2026

Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
Electronic look-up tables on retention and excretion of radionuclides as a PC based support system for internal
1Division of Radiotoxicology and Protection, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba, Japan.
Abstract:
For the implementation of internal dosimetry in workplaces based on individual monitoring, information that relates the measurement results with the intake of radionuclides is required. The present work provides electronic look-up tables as a PC based support system for internal dosimetry. The tables contain the computed values for retention and excretion of 42 selected radionuclides following a single intake by inhalation and by ingestion, where the new ICRP respiratory tract model and the latest ICRP biokinetic models were used. These look-up tables contain the day-by-day data up to 1000 days and the data at every 10 days up to 10,000 days for the monitoring quantities. Users can readily evaluate intake of radionuclides by dividing the measured results with the values in these electronic look-up tables.
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