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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measurements of vortex line density generated by a quartz tuning fork in superfluid $$^{4}$$ 4 He
AU - Jackson, M. J.
AU - Kolosov, O.
AU - Schmoranzer, D.
AU - Skrbek, L.
AU - Tsepelin, V.
AU - Woods, A. J.
N1 - The final publication is available at Springer via http://dx.doi.org/10.1007/s10909-015-1397-4
PY - 2016/5
Y1 - 2016/5
N2 - We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in superfluid 4He at 1.6 K. The force–velocity response of a quartz tuning fork operating at a frequency of 31 kHz exhibited the onset of extra damping at a velocity of 0.5 ms−1. Attenuation of the 5th resonant mode of second sound was observed at the same velocity, indicating the production of vortex lines. Our measurements demonstrate that an increase of the drag coefficient corresponds to the development of quantum turbulence.
AB - We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in superfluid 4He at 1.6 K. The force–velocity response of a quartz tuning fork operating at a frequency of 31 kHz exhibited the onset of extra damping at a velocity of 0.5 ms−1. Attenuation of the 5th resonant mode of second sound was observed at the same velocity, indicating the production of vortex lines. Our measurements demonstrate that an increase of the drag coefficient corresponds to the development of quantum turbulence.
KW - Quantum turbulence
KW - Superfluid helium-4
KW - Tuning fork
KW - Second sound
U2 - 10.1007/s10909-015-1397-4
DO - 10.1007/s10909-015-1397-4
M3 - Journal article
VL - 183
SP - 208
EP - 214
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 3
ER -