Cavitation in Liquid Helium

Finch, R. D.; Kagiwada, R.S.; Barmatz, M.; Rudnick, I.

doi:10.1103/physrev.134.a1425

Cited by 38 publications

(11 citation statements)

References 12 publications

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“…Also, evidence from another system indicates that at higher frequencies the cavitation amplitude increases linearly with frequency, 38 and extrapolation from helium experiments imply a much higher threshold than even the intensities used here. 39 On the other hand, the present amplitudes are larger than the onset for streaming reported in helium. 40 Streaming, however, is an effect usually associated with continuous sound, while here the pulses were short and the duty cycles low.…”

Section: Analysis Of Datacontrasting

confidence: 61%

Millimeter-Wave Acoustic Transducers

Quate¹,

LaComb²,

Wright³

et al. 1990

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Section: Analysis Of Datacontrasting

confidence: 61%

Millimeter-Wave Acoustic Transducers

Quate¹,

LaComb²,

Wright³

et al. 1990

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“…Several experiments using planar [11] or tubular [12,13] piezoelectric transducers operated at frequencies similar to ours led to the observation of cavitation in liquid helium. Finch, Kagiwada, Barmatz and Rudnick [11] used two identical disks 4.5 cm apart, made of Clevite PZT-4 ceramics 1/2 inch in diameter and thickness, with electrodes on their flat surfaces operated at 91.15 kHz, one as a transducer, the other as a receiver, to generate and detect cavitation in bulk helium.…”

Section: Previous Studies On Cavitation In Liquid Heliumsupporting

confidence: 58%

On cavitation in liquid helium in a flow due to a vibrating quartz fork

Blažková

Schmoranzer

Skrbek

2008

Low Temperature Physics

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Cavitation in normal and superfluid liquid 4 He at saturated vapor pressure and slightly elevated pressures has been experimentally studied in a flow due to quartz forks vibrating at high amplitudes. Above the temperature-and pressure-dependent critical velocity, heterogeneous cavitation is observed both visually and electrically, as a breakdown of the resonance response of the fork. We compare our results with available experimental and discuss them using existing theoretical models. In particular, we show that thermal effects leading to local overheating of the vicinity of the fork have to be taken into account, especially in normal liquid 4 He.PACS: 47.55.dp Drop and bubble formation.

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“…These are triggered by the electronic jams, which thus control the onset and frequency of the events, while the duration of a spike is determined by the lifetime of the formed cavities. Gaseous helium cavities may be produced by heatpulses 32 or by acoustic-wave-bursts 33,34 , and in particular, the threshold for a cavity formation on glass surfaces (heterogeneous cavitation) is quite low 35 . Both heating-pulses and acoustic-waves are potential products of energy-bursts involved in the jam events.…”

Section: V -A Mechanism For Cooling Events Triggered By the Electrmentioning

confidence: 99%

Conductance noise in interacting Anderson insulators driven far from equilibrium

Orlyanchik

Ovadyahu

2005

Phys. Rev. B

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The combination of strong disorder and many-body interactions in Anderson insulators lead to a variety of intriguing nonequilibrium transport phenomena. These include slow relaxation and a variety of memory effects characteristic of glasses. Here we show that when such systems are driven with sufficiently high current, and in liquid helium bath, a peculiar type of conductance noise can be observed. This noise appears in the conductance versus time traces as downward-going spikes. The characteristic features of the spikes (such as typical width) and the threshold current at which they appear are controlled by the sample parameters. We show that this phenomenon is peculiar to hopping transport and does not exist in the diffusive regime. Observation of conductance spikes hinges also on the sample being in direct contact with the normal phase of liquid helium; when this is not the case, the noise exhibits the usual 1/f characteristics independent of the current drive. A model based on the percolative nature of hopping conductance explains why the onset of the effect is controlled by current density. It also predicts the dependence on disorder as confirmed by our experiments. To account for the role of the bath, the hopping transport model is augmented by a heuristic assumption involving nucleation of cavities in the liquid helium in which the sample is immersed. The suggested scenario is analogous to the way high-energy particles are detected in a Glaser's bubble chamber.

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Cavitation in Liquid Helium

Cited by 38 publications

References 12 publications

Millimeter-Wave Acoustic Transducers

Millimeter-Wave Acoustic Transducers

On cavitation in liquid helium in a flow due to a vibrating quartz fork

Conductance noise in interacting Anderson insulators driven far from equilibrium

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