RADIATION SAFETY RECORDS OF MARITIME TRANSPORT OF NUCLEAR MATERIALS FOR RECENT 10 YEARS IN JAPAN

Radiation safety for sea transport of radioactive material in Japan has been discussed based on records of the exposed dose of sea transport workers and measured data of dose rate equivalents distribution inboard exclusive radioactive material shipping vessels. Recent surveyed records of the exposed doses of workers who engaged in sea transport operation indicate that exposed doses of transport workers are significantly low. This study clearly shows that radiation safety is ensured in cargo operations and onboard ships during the maritime transport of radioactive materials.