Fast Breeder Reactor (FBR)
Following "Joyo", a prototype FBR "Monju" was developed as a national project. The objective of this project was to verify technically the performance and reliability as a power plant, as well as to establish sodium handling technologies, through experiencing the design, construction and operation of the plant. The operation of the facility was put on hold after the sodium leak accident on the secondary cooling system in December 1995. Following a thorough review of the entire facility, and learning lessons from the accident, the plant modification works were started in September 2005, but the decommission of the plant was decided in 2016. Utilizing the expertise of the technologies accumulated through these projects, MHI is continuing its development of FBR as a leading manufacturer of FBR.
|1970||Start construction of Experimental reactor "Joyo"|
|1977||Initial criticality of "Joyo"|
|1985||Start construction of Prototype reactor "Monju"|
|1994||Initial criticality of "Monju"|
|1995||"Monju" sodium leak accident|