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

N.A. Lockerbie, C. Chapelier, J.J. Blanchard

Research output: Contribution to journalArticle

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.
Original languageEnglish
Pages (from-to)814-817
Number of pages3
JournalReview of Scientific Instruments
Volume62
Issue number3
DOIs
Publication statusPublished - Mar 1991

Keywords

  • helium 4
  • quartz
  • sound waves
  • acoustic microscopy
  • wave propagation
  • solid−fluid interfaces
  • acoustic measurements
  • ghz range

Fingerprint Dive into the research topics of 'Alignment system for 9-10 GHz longitudinal sound waves in a quartz etalon at 1.5 K'. Together they form a unique fingerprint.

Cite this