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9. The attenuation of sound in a dilute mixture of 3He and 4He by a method of fixed distance

✍ Scribed by E.W. Guptill; F. Van Iersel; A.F. Van Itterbeek

Publisher
Elsevier Science
Year
1958
Weight
71 KB
Volume
24
Category
Article
ISSN
0031-8914

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πŸ“œ SIMILAR VOLUMES

The attenuation of sound in solutions of
The attenuation of sound in solutions of 3He and 4He
✍ E.W. Guptill; A.M.R. Van Iersel; R. David πŸ“‚ Article πŸ“… 1958 πŸ› Elsevier Science βš– 241 KB

## Synopsis Measurements have been made of the attenuation of first sound in mixtures of 4He and 8He for differeht 8He concentrations (11, 3, 1 and 0.5%) and at temperatures between 0.88Β°K and the 2-point. In the neighbourhood of 1.0Β°K the attenuation is diminished greatly by the addition of 8He.

The specific heat of dilute 3He-4He mixt
The specific heat of dilute 3He-4He mixtures measured with a second-sound Helmholtz resonator
✍ H.C.M. Van Der Zeeuw; R.F. Mudde; H. Van Beelen πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science βš– 876 KB

An alternative way of measuring the specific heat of superttuid 4He and dilute 3He-4He mixtures is described. Specific heat data are derived from the measured resonance curves for the temperature amplitude in a second-sound Helmholtz resonator. It is shown that the nature of the losses that govern t