Acoustic modes of superfluid helium in a waveguide partially packed with superleak

Journal Article · Mon Mar 01 04:00:00 EST 1976 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00659054· OSTI ID:7263260

Heiserman, J; Rudnick, I

The velocities of the two acoustic modes of superfluid helium contained in an annular waveguide packed to a fraction of its depth with superleak material have been measured. The depth of the superleak was varied and the dependence of the velocities on the depth was determined. The results are compared with theory and good agreement is found. Explanations for some observed departures are discussed.

• Research Organization: Univ. of California, Los Angeles
• OSTI ID: 7263260
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 22:5/6; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATTENUATION
EVEN-EVEN NUCLEI
FOURTH SOUND
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
OSCILLATION MODES
SECOND SOUND
SOUND WAVES
STABLE ISOTOPES
SUPERFLUIDITY
VELOCITY
WAVE PROPAGATION