Torsional oscillator for internal friction data at 100 kHz

David G. Cahill, J. E. Van Cleve

Research output: Contribution to journalArticlepeer-review


We describe a method for measuring the internal friction of solids at low temperatures. Our design uses a composite oscillator vibrating in torsion at 100 kHz. The oscillator makes good thermal contact to the cryostat while maintaining a low background loss of Q-1≃2× 10-6 at 2 K. The usefulness of the design is demonstrated by data for BaF2 and a-SiO2 from 2 to 300 K.

Original languageEnglish (US)
Pages (from-to)2706-2710
Number of pages5
JournalReview of Scientific Instruments
Issue number8
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation


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