Proceedings of the fourth JAEA-US EPA workshop on radiation risk assessment

This report is the proceedings of the fourth workshop jointly organized by the Japan Atomic Energy Agency (JAEA) and the United States Environmental Protection Agency (US EPA) under the terms of agreement for cooperation in the field of radiation protection. The workshop was sponsored by the Nuclear Science and Engineering Directorate and was held at the Nuclear Science Research Institute, the Tokai Research and Development Center, JAEA, on November 7-8, 2006. The objective of the workshop was to exchange and discuss recent information on radiation effects, radiation risk assessment, radiation dosimetry, emergency response, radiation protection standards, and waste management. Twenty-two papers were presented by experts from JAEA, US EPA, the National Academies, Oak Ridge National Laboratory, Washington State University and the US Nuclear Regulatory Commission. Three keynotes addressed research on radiation effects and radiation protection at JAEA, the latest report on health risks from exposure to low levels of ionizing radiation published by the National Research Council (BEIR VII Phase 2), and recent developments in Committee 2 for the forthcoming recommendations of the International Commission on Radiological Protection (ICRP). The workshop provided a good opportunity for identifying future research needed for radiation risk assessment. The 22 of the presented papers are indexed individually. (J.P.N.)