• Effect of the Charged Pressure on GM Cryocooler Performance. 

      Nezuka, H.; Nakagome, H.; Ota, M.; Numazawa, T.; Masuyama, S.; Nakashima, N.; Ikeya, Y. (Georgia Institute of TechnologyICC Press, 2008-05)
      This paper presents experimental results that show that the refrigeration efficiency of GM refrigerators can be improved by applying a charged pressure. Recently, there has been remarkable progress in superconducting ...