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

Fingerprint

sound waves
Quartz
rods
quartz
Acoustics
alignment
Acoustic waves
acoustics
Niobium
niobium
echoes
coils
frequency ranges
Liquids
liquids

Keywords

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

Cite this

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title = "Alignment system for 9-10 GHz longitudinal sound waves in a quartz etalon at 1.5 K",
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.",
keywords = "helium 4, quartz, sound waves, acoustic microscopy, wave propagation, solid−fluid interfaces, acoustic measurements, ghz range",
author = "N.A. Lockerbie and C. Chapelier and J.J. Blanchard",
year = "1991",
month = "3",
doi = "10.1063/1.1142037",
language = "English",
volume = "62",
pages = "814--817",
journal = "Review of Scientific Instruments",
issn = "0034-6748",
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Alignment system for 9-10 GHz longitudinal sound waves in a quartz etalon at 1.5 K. / Lockerbie, N.A.; Chapelier, C.; Blanchard, J.J.

In: Review of Scientific Instruments, Vol. 62, No. 3, 03.1991, p. 814-817.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Alignment system for 9-10 GHz longitudinal sound waves in a quartz etalon at 1.5 K

AU - Lockerbie, N.A.

AU - Chapelier, C.

AU - Blanchard, J.J.

PY - 1991/3

Y1 - 1991/3

N2 - 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.

AB - 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.

KW - helium 4

KW - quartz

KW - sound waves

KW - acoustic microscopy

KW - wave propagation

KW - solid−fluid interfaces

KW - acoustic measurements

KW - ghz range

UR - http://dx.doi.org/10.1063/1.1142037

U2 - 10.1063/1.1142037

DO - 10.1063/1.1142037

M3 - Article

VL - 62

SP - 814

EP - 817

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 3

ER -