𝔖 Bobbio Scriptorium
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59. Ultrasonic absorption in superconducting and normal mercury

✍ Scribed by L. Mackinnon; A. Myers

Book ID
104162850
Publisher
Elsevier Science
Year
1958
Weight
61 KB
Volume
24
Category
Article
ISSN
0031-8914

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✦ Synopsis

A robust bolometer employing a tin element at its superconductive transition will be described. The instrument is designed to respond to infra-red radiation chopped at 10 Hz and the signal is amplified, by a special transformer operating in liquid helium, prior to electronic amplification and recording. A comparison of its performance with that of a pneumatic detector will be described.

A spectrometer, designed for the far infra-red (beyond 50p), has been constructed and used in conjunction with the bolometer.

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Ultrasonic attenuation in normal and sup
Ultrasonic attenuation in normal and superconducting indium
✍ Michael Conley; Robert Reed πŸ“‚ Article πŸ“… 1981 πŸ› Springer US 🌐 English βš– 781 KB

Measurements have been made of the ultrasonic attenuation in the normal and superconducting states of pure In single crystals. The measurements spanned the frequency range of 6-66 MHz. The data, taken in the amplitudeindependent regime, displayed the expected deviations from the BCS-type attenuation