4:55 PM - 5:10 PM
[2M18] Development of general-purpose clearance radioactivity concentration measurement evaluation method
Impact assessment on radiation measurement for random storage in a container
Keywords:clearance, BWR, radiation, Ge semiconductor detector, Uneven distribution of density, Uneven distribution of source
In the decommissioning of Hamaoka Nuclear Power Station Units 1 and 2, for the purpose of clearance implementation, the shredded and removed metal objects with a total weight of about 1 ton were stored in a container and its radiation was measured. The shielding density and radioactive source were unevenly distributed in the container. We report the development status of a program that can calculate the effect of uneven distribution of the density and source on radiation measurements.