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U.S. Department of Energy
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Propagation of sound in matter. Interim summary report, 1 October 1968-1 February 1982

Technical Report ·
OSTI ID:6715252

Contents: Ultrasonic Attenuation in Liquid Helium at 1 GHz; Size Effects in Liquid Helium II as Measured by Fourth Sound and The Attenuation of Fourth Sound; Third Sound in Unsaturated Films of Superfluid Helium; A Specific Heat and Fourth Sound Measurement of Size Effects in Liquid Helium; Experimental Study of the Lambda Transition of Liquid Helium Using First Sound Attenuation; Attenuation of Third Sound in Liquid Helium and the Stability of Multiply Quantized Persistent Circulations of a Thin Helium Film in the Landay Region; Hypersonic Attenuation in the Vicinity of the Superfluid Transition of Liquid Helium; Investigation of Persistent Current States in Rotating Superfluid Helium Contained in Superleak Using Doppler-Shifted Fourth Sound; Investigation of the thickness and Critical Velocity of a Moving Unsaturated Superfluid Film Using Doppler Shifted Third Sound; Third Sound Velocity and Attenuation Below 1.2 Degrees Kelvin; A Study of the Trapping of Superfluid Persistent Currents in Superleaks; Non-Linear Parametric Generation of Sound by Resonant Mode Conversion; A Study of Persistent Currents in Superfluid 4He.

Research Organization:
California Univ., Los Angeles (USA). Dept. of Physics
OSTI ID:
6715252
Report Number(s):
AD-A-111842/1
Country of Publication:
United States
Language:
English