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Solubility of 4HE in liquid 3HE at very low temperatures

✍ Scribed by Masaki Nakamura; Gohzo Shirota; Toshinobu Shigematsu; Keisuke Nagao; Yoshiko Fujii; Minoru Yamaguchi; Toyoichiro Shigi

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
179 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

As a continuation of our previous experiments (l), the phase separation temperatures of dilute solution of 4He in liquid 3He have been measured with increased surface area in the cell, in order to estimate the amount of 4He adsorbed on the surface. The solubility of 4He below 200 mK is larger than the value expected from the equation proposed by Saam et al.

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Refrigeration and thermometry of liquid3He-4He mixtures at very low temperatures
✍ R. KoΒ¨nig; F. Pobell πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 142 KB

In order to avoid possible sources of heat leaks into liquid 3He-4He mixtures we have constructed an experimental setup using only materlals of high purity. The inner part of an Ag-cell was furnished with a 700~-Ag sinter (A = llOm 2) and two vlbratlng wires. The temperature of the cell wall was mea