Developments in the field of environmental radioactivity with special emphasis on the retrospective dosimetry

Abstract

At the time of the JCO criticality accident 10 years ago in 1999, several methods of the retrospective dosimetry were applied for dose estimation of irradiated people. The methods include clinical, biological and radiochemical methods. By starting from a review of the JCO accident, the workshop will summarize recent applications of the retrospective dosimetry on the detection of low-level contamination and on the dose reconstruction for atomic bombs in Nagasaki and Hiroshima, Semipalatinsk nuclear test site, and Chernobyl contaminated site. Since development and progress of analytical techniques strongly contribute to the retrospective dosimetry, available new techniques such as accelerator mass spectrometry will be introduced in the talks.