Evidence for Nuclear Emissions During Acoustic Cavitation

@article{Taleyarkhan2002EvidenceFN,
  title={Evidence for Nuclear Emissions During Acoustic Cavitation},
  author={Rusi P. Taleyarkhan and Colin D West and J. S. Cho and Richard T. Lahey and Robert I. Nigmatulin and Robert C. Block},
  journal={Science},
  year={2002},
  volume={295},
  pages={1868 - 1873}
}
In cavitation experiments with deuterated acetone, tritium decay activity above background levels was detected. In addition, evidence for neutron emission near 2.5 million electron volts was also observed, as would be expected for deuterium-deuterium fusion. Control experiments with normal acetone did not result in tritium activity or neutron emissions. Hydrodynamic shock code simulations supported the observed data and indicated highly compressed, hot (106 to 107 kelvin) bubble implosion… 
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References

SHOWING 1-10 OF 19 REFERENCES
Radiation-Induced Cavitation
Measurements of the thresholds of radiation‐induced acoustic cavitation in pentane and acetone are described. A resonator method was employed. It is concluded that the observed cavitation was…
Cavitation physics: Lasers blow a bigger bubble
In sonoluminescence, intense sound waves in water cause bubbles to form, which then collapse emitting a brief flash of light. We know that the collapse heats the trapped gas, but not why light is…
That Flashing Sound
Sonoluminescence is the light emitted by a collapsing gas bubble in a strong acoustic field. Despite the large amount of observational data, no clear agreement exists on the mechanism by which this…
Sonoluminescence temperatures during multi-bubble cavitation
Acoustic cavitation—the formation and implosive collapse of bubbles—occurs when a liquid is exposed to intense sound. Cavitation can produce white noise, sonochemical reactions, erosion of hard…
Sensitivity of sonoluminescence to experimental parameters.
TLDR
Light-scattering measurements have enabled us to determine that the transition to sonoluminescence is characterized by a bifurcation in the dynamics of a trapped pulsating bubble, and theoretical extrapolations of this model to energy scales for fusion are discussed.
Collapse and rebound of a laser-induced cavitation bubble
A strong laser pulse that is focused into a liquid produces a vapor cavity, which first expands and then collapses with subsequent rebounds. In this paper a mathematical model of the spherically…
Time-Resolved Spectra of Sonoluminescence
Time-correlated single-photon counting reveals that the width of flashes of sonoluminescence ranges from under 40 to over 350ps for mixtures of various gases in water. Flash widths and emission times…
Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena
Abstract : Contents: Elements of gas dynamics and classical theory of shock waves; thermal radiation and radiant heat exchange in a medium; thermodynamic properties of gases at high temperatures;…
Timing of Sonoluminescence Flash
IT has been pointed out1 that theories attempting to explain the origin of the sonoluminescent flash, which is sometimes observed in acoustic cavitation, can be divided according to whether they…
ERRATUM: Improved formulas for fusion cross-sections and thermal reactivities
For interpreting fusion rate measurements in present fusion experiments and predicting the fusion performance of future devices or of d-t experiments in present devices, it is important to know the…
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