Tritium breeding blanket

The inside of a blanket is divided into a breeding region and a cooling region disposed with cooling tubes. An aqueous solution of tritium salt is injected into the breeding region and filled usually in a stagnation state. Then, it is taken out for recovery by a required amount upon tritium recovery. The blanket is cooled by introducing coolants sent from independent cooling circuits into cooling tubes, first walls and coolant circuits of the blanket. Thus, it is possible to produce tritium at a reduced cost and decrease the capacity of the tritium recovery system. (K.M.)