Abstracts from the 44th Conference of the Australasian Radiation Protection Society, Held in Conjunction with the 5th International Symposium of the International Commission on Radiological Protection.

s from the 44th Conference of the Australasian Radiation Protection Society, Held in Conjunction with the 5th International Symposium of the International Commission on Radiological Protection This section is dedicated to presentations given in sessions at the 44th Conference of the Australasian Radiation Protection Society. This includes the Boyce Worthley Oration given in the opening session; oral presentations in sessions on future challenges, naturally occurring radioactive material (NORM) and natural radiation, radiation biology and protection, aviation and beyond: radiation biology and protection, nuclear facilities and training, and radiation protection in medicine; and poster presentations. 1. Boyce Worthley Oration A controversy that needs to be resolved D. Higson Honorary Fellow of the Australasian Radiation Protection Society (Retired) The atomic bombing of Japan that ended World War II was the first public demonstration of nuclear power, and the Life Span Study of the Japanese bomb survivors has provided most of the data on the risks of long-term health effects of radiation exposure, viz: doses >500mSv certainly caused significantly increased risk of cancer, and doses <100mSv did not cause any discernible risk but this may be because the risks (if they exist) are too small to be statistically significant. However, it has been This paper does not necessarily reflect the views of the International Commission on Radiological Protection.