RESUMO
The IAEA Radiation Safety Technical Services Laboratory has developed and validated an Internal Dosimetric Analyser (IDA) software tool to facilitate access to dosimetric data and perform calculations related to individual monitoring for intakes of radionuclides and occupational radiation protection. IDA serves to correlate measurements from routine, confirmatory and special internal monitoring with data obtained from the Occupational Intakes of Radionuclides series of recommendations published by the International Commission on Radiological Protection. The purpose of IDA is to keep the internal dosimetry data in the background and allow the dosimetrist to make the necessary calculations to be able to decide (1) whether the bioassay method and monitoring period are appropriate for routine, confirmatory or special monitoring; (2) whether the method and period will allow the recording level to be detected; (3) whether previous intakes are contributing to the current measurement; and (4) whether measurement uncertainties affect the dose assessment.