Land disposal of radioactive waste

This report is described for the land disposal of radioactive waste by members of Research Committee on Radiological Safety for Ground Storage of Waste. Current situations on the land disposal of foreign countries and Japan are shown respectively. Policy of Japanese Government for the disposal is also presented with the lapse of time. In view of research and development, repository, packaging and cost estimate are discussed and particularly research items concerning the evaluation of internal radiation dose due to the disposal are indicated with radiological sense. (auth.)