THE DEVELOPMENT OF SPACE CRYOGENICS

In this paper,the newly development of international space cryogenic techniques,especially in America and West European countries has been summerized.Including the superfluid helium,the providing of liquid helium to the plant in the space on orbit,cryogenic wind tunnels techniques,the preparation and application of slush hydrogen etc.The summery emphasized on the most competitive equipments Stirling cryocooler and pulse tube cryocooler.Fruther,the techniques of ³He-⁴He dilution refrigerator and magnetic cooler have also been introduced in brief.Finally,the suggestion for the development of Chinese space cryogenics has been discussed.