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Evolution of imploding cylindrical second sound waves in superfluid 4He

✍ Scribed by G. Stamm; W. Fiszdon; T. Olszok


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
359 KB
Volume
197
Category
Article
ISSN
0921-4526

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The velocity of second sound near the la
✍ M.J. Adriaans; D.R. Swanson; J.A. Lipa πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 163 KB

We report new high precision data on the velocity of second sound close to the lambda transition of 4He at the saturated vapor pressure. The second sound wave is detected by a powdered salt pill of copper ammonium bromide in direct contact with the liquid helium. With a thermometer noise of < 10-1Β°K