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Continuous adsorption refrigerator for producing temperatures below 1 K

✍ Scribed by V.P. Babiichuk; A.A. Golub; B.N. Esel'son; I.A. Serbin

Book ID: 103054903
Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 311 KB
Volume: 15
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(75)90112-5

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✦ Synopsis

This paper describes an evaporation refrigerator in which the pumping of the vapour above liquid He 3 or He 4 was accomplished with two alternately operating adsorption pumps. In this way temperature can be maintained constant with an accuracy to 0.003 K for a long time; ~ 101 helium vapour being used. The refrigeration capacity of the apparatus has been determined. The characteristics of the dilution refrigerator (namely, the rate of He 3 circulation, the starting and operating temperatures) have been calculated for He 3 circulation using the adsorption pumps and pumping line.

This system is shown to be successful for producing very low temperatures at an He 3 circulation rate of ~ 10-5-1G 4 mole s -I.

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