REACTOR FACILITY

PROBLEM TO BE SOLVED: To provide compact means that receives a falling matter of a fusion furnace core for cooling even in a case where a lot of falling matters of the fusion furnace core occur and leak out from a reactor pressure vessel, and to preliminarily separate the falling matter of the fusion furnace core, which is a mixture of an oxide and a metal, into the oxide and the metal in terms of post processing.SOLUTION: A reactor facility has a multilayer structure in which, in a lower part of a reactor pressure vessel, a plurality of pans whose bottom part is sealed are arranged in a vertical direction, the end of an upper pan is provided with a weir and overflowed fusion furnace cores are received at a lower pan and cooled.