New facilities for criticality safety experiments

The research program, experiments facilities, safety design considerations and status of facility construction and planning on the subject of criticality safety research of NUCEF project, which is one of the major research activities at JAERI, are summarized and the outline is shown. Two critical assemblies with fuel solution, STACY and TRACY, are under construction in the NUCEF project for the purpose of contributing to the criticality safety assesment and the improvements in the establishing of fuel reprocessing technologies. These assemblies together with their fuel treatment facility are scheduled to be completed in 1992.