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A dilution refrigerator without pumped He4 bath

✍ Scribed by A.Th.A.M. de Waele; A.B. Reekers; H.M. Gijsman


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
240 KB
Volume
17
Category
Article
ISSN
0011-2275

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✦ Synopsis


This condensation stage has the great advantage, that the dilution refrigerator can work without a separate 1 K stage (for example, a cold plate or a pumped He 4 bath). This one dispenses with a pumping line and a rotary pump. This stage is ideally suited for runs of long duration.


πŸ“œ SIMILAR VOLUMES


3He/4He dilution refrigerator without a
✍ K. Uhlig πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 272 KB

A 3He/4He dilution refrigerator is described where the instreaming 3He is precooled and liquefied by a counterflow heat exchanger which makes use of the enthalpy of the cold 3He gas pumped out of the still, and by subsequent Joule-Thomson expansion. This condenser replaces the usual 4He condenser.

A combined 3He-4He dilution refrigerator
✍ V.N. Pavlov; B.S. Neganov; J. Konicek; J. Ota πŸ“‚ Article πŸ“… 1978 πŸ› Elsevier Science 🌐 English βš– 447 KB

A refrigerator capable of operating both in evaporation and dilution modes is described. The refrigerator provides preliminary cooling of investigated samples down to a starting temperature of about 0.3 K and permits the location of samples directly in the mixing chamber as well as their replacement

Operation of 3He4He dilution refrigerato
✍ K. Uhlig; W. Hehn πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 214 KB

torque on the tight contacts improved the contact resistances from values between 5 and I0 /~ to values between 1 and 2/zQ. 6 Tests with variable forces on the contacts were also carried out. The effect of the force was not reversible and the results for a particular force depended on whether the le