Abstract
More than 60 years have passed since the atomic bombings of Hiroshima and Nagasaki. Epidemiological studies of atomic bomb survivors and of high background radiation area residents have provided information on radiation-related cancer risks. However, basic studies are still needed regarding some important issues such as the risk modification by the age at exposure, the low dose rate radiation effect, and the target cells of radiation carcinogenesis. In this workshop, we will learn from young and energetic radiation biologists about the latest studies of radiation-induced carcinogenesis in animal models and discuss whether these results are extrapolated to the knowledge from epidemiological studies. The goal of this workshop is to search for future direction of the radiation carcinogenesis studies.