• Development of High Efficiency 4 K Two-Stage Pulse Tube Cryocooler 

      Xu, M.; Takayama, H.; Nakano, K. (Georgia Institute of TechnologyICC Press, 2008-05)
      Sumitomo Heavy Industries has been continuously improving the efficiency of our 4K pulse tube cryocooler in order to make it exchangeable with our 4K GM cryocooler. In order to improve the performance, three development ...