Patent ID: 10921041

Abstract:
A movable platen cooling apparatus includes: a compressor; a cold head that includes a cooling part; a refrigerator gas supply line that supplies a refrigerant gas from the compressor to the cold head; a refrigerator gas exhaust line that exhausts the refrigerant gas from the cold head to the compressor; a first gas inflow line that is connected to a first movable platen flow path and includes a heat exchange part thermally coupled to the cooling part; a first gas outflow line connected to the first movable platen flow path and merged with the refrigerator gas exhaust line; a second gas inflow line connected to a second movable platen flow path and disposed to be thermally non-coupled with the cooling part; and a second gas outflow line connected to the second movable platen flow path and merged with the refrigerator gas exhaust line.