For understanding the properties of wastes in waste management, an analytical method to obtain data easily and quickly is developed, and efforts are initiated to use that method as a standard analytical method at the Radioactive Material Analysis and Research Facility Laboratory-1.

In particular, because relatively high alpha contamination has been confirmed in some parts of the reactor buildings and the frequency of work in the reactor buildings is increasing as decommissioning work progresses, and because of the difficulty of measuring alpha radiation and its large contribution to the partial exposure dose, the development and standardization of a dose evaluation system based on internal intake of alpha-ray emitting nuclides and others is being promoted ahead of other