Alignment system for 9-10 GHz longitudinal sound waves in a quartz etalon at 1.5 K

Lockerbie, N.A. and Chapelier, C. and Blanchard, J.J. (1991) Alignment system for 9-10 GHz longitudinal sound waves in a quartz etalon at 1.5 K. Review of Scientific Instruments, 62 (3). pp. 814-817. ISSN 0034-6748 (http://dx.doi.org/10.1063/1.1142037)

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Abstract

We report the results of a system that employs four small superconducting repulsion coils and their respective niobium force-plates to restore the parallelism of a quartz-rod acoustic etalon, used for the measurement of acoustic transmission across quarter‐wave matching layers into liquid 4He. In the 9-10 GHz frequency range we find up to an eightfold improvement in the number of usable echoes for some quartz-rod samples.

ORCID iDs

Lockerbie, N.A. ORCID logoORCID: https://orcid.org/0000-0002-1678-3260, Chapelier, C. and Blanchard, J.J.;
  • Item type:Article
    ID code:17738
    Dates:
    Date
    Event
    March 1991
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:11 May 2010 18:52
    Last modified:11 Nov 2024 09:14
    URI:https://strathprints.strath.ac.uk/id/eprint/17738
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