Reaching a temperature of 0.64 K in an H
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J.M. Goldschvartz; W.P. van der Merwe; A. Kollen
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Article
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1975
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Elsevier Science
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English
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The old problem of reaching temperatures below 1 K with liquid helium II film traps and adsorption pumps has been tackled several times. 1,2,3,4,5 On the other hand, Staas and Severijns 6 have designed a sophisticated and elegant device using as a cooling method the interaction between the superflui