| 摘要 |
<p>A cryogenic refrigerator for cooling compressed helium gas while passing it through a refrigerant-filled or refrigerating force storage chamber (31, 33), and then expanding it at low temperature area (49, 51) to to conduct refrigerating, wherein said chamber (33) as filled with a refrigerant (34a, 34b, 34d) consisting of a composition of Er3Ni and with another refrigerant consisting of a compound expressed by a formula Er(1-x)R(x)Ni, wherein 0 </= X </= 1 and R represents a rare earth element selected from Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, dy, Ho, Tm, Yb and Sc. <IMAGE></p> |
