RI MANUFACTURING APPARATUS

PROBLEM TO BE SOLVED: To provide an RI manufacturing apparatus capable of efficiently cooling vapor of target liquid even when it is under the presence of a pressurized gas.SOLUTION: A target device 10 is an RI manufacturing apparatus for manufacturing radioactive isotope by nuclear reaction of target liquid L irradiated with charged particle beam and includes: a storage part 41 for storing the target liquid L at an irradiation position of the charged particle beam; a buffer part 42 which is positioned above the storage part 41, communicates with the storage part 41, and stores vapor V evaporated from the target liquid L; a pressurized gas flow path 45a for supplying the buffer part 42 with non-condensable pressurized gas; and a cooling chamber 47 which communicates with the buffer part 42 and cools the vapor V moved from the buffer part 42.