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

doi:10.1063/1.1142037

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

Physics

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	814-817
Number of pages	3
Journal	Review of Scientific Instruments
Volume	62
Issue number	3
DOIs	https://doi.org/10.1063/1.1142037
Publication status	Published - Mar 1991

Keywords

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

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10.1063/1.1142037

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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 = mar,

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pages = "814--817",

journal = "Review of Scientific Instruments",

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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

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DO - 10.1063/1.1142037

M3 - Article

SN - 0034-6748

VL - 62

SP - 814

EP - 817

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 3

ER -

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

Abstract

Keywords

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