𝔖 Bobbio Scriptorium
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Adiabatic expansion of3He in4He

✍ Scribed by A.P.J. Voncken; A.T.A.M. de Waele

Book ID
103940244
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
119 KB
Volume
194-196
Category
Article
ISSN
0921-4526

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✦ Synopsis

A cooling method in which superfluid 4He is injected in pure SHe is described. In principle ultralow mixture temperatures can be reached with starting temperatures below --500 laK. In this contribution the 4He injection method is described together with preliminary results in the 20 to 200 mK region.

πŸ“œ SIMILAR VOLUMES

NMR Studies on3He-3He and3He-4He tunneli
NMR Studies on3He-3He and3He-4He tunneling motions in solid3He-4He mixtures
✍ Yutaka Hirayoshi; Takao Mizusaki; Satoru Maegawa; Akira Hirai πŸ“‚ Article πŸ“… 1978 πŸ› Springer US 🌐 English βš– 557 KB

Helium-3 nuclear spin relaxation times T1, T2, and Tip have been measured for 3He-4He solid mixtures at the exchange plateau region (~ O. 5 K). The 3He concentrations x3 of the samples were 7.2, 2.9, 1.8, 1.4, 0.67, 0.65, and 0.22 %, and their molar volumes varied between 19.9 and 20.9 cm3 /mole in