Effect of a magnetic field on sonoluminescence.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics · 1999 · Mixed · Low evidence

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MixedLow evidencePaper 4027

Study snapshot

PublicationPhysical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics · 1999

Study typeother

Reported directionMixed

Evidence ratingLow

Abstract

The effect of a magnetic field on single-bubble sonoluminescence in water reported experimentally by Young, Schmiedel, and Kang [Phys. Rev. Lett. 77, 4816 (1996)] is studied theoretically. It is suggested that bubble dynamics is affected by the magnetic field because moving water molecules of the liquid suffer torque due to the Lorentz force acting on their electrical dipole moment, which results in the transformation of some of the kinetic energy into heat. It is shown that the magnetic field acts as if the ambient pressure of the liquid were increased. It is suggested that the effect increases as the amount of the liquid water increases. It is predicted that nonpolar liquid such as dodecane exhibits no effect of the magnetic field.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionmixed

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

A theoretical analysis suggests a magnetic field can affect single-bubble sonoluminescence in water by altering bubble dynamics via Lorentz-force torque on moving water molecules’ electrical dipole moments, transforming some kinetic energy into heat. The magnetic field is described as acting as if the ambient pressure were increased, with a suggested stronger effect as the amount of liquid water increases. The paper predicts no magnetic-field effect in a nonpolar liquid such as dodecane.

Outcomes measured

single-bubble sonoluminescence (theoretical effect on bubble dynamics)
heat generation/kinetic energy transformed into heat
effective increase in ambient pressure

Limitations

The work is theoretical (mechanism/modeling) rather than a new experimental exposure study.
Magnetic-field characteristics (strength, static vs time-varying) are not specified in the abstract.
No quantitative effect sizes or uncertainty estimates are provided in the abstract.

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": "magnetic field",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "single-bubble sonoluminescence (theoretical effect on bubble dynamics)",
    "heat generation/kinetic energy transformed into heat",
    "effective increase in ambient pressure"
  ],
  "main_findings": "A theoretical analysis suggests a magnetic field can affect single-bubble sonoluminescence in water by altering bubble dynamics via Lorentz-force torque on moving water molecules’ electrical dipole moments, transforming some kinetic energy into heat. The magnetic field is described as acting as if the ambient pressure were increased, with a suggested stronger effect as the amount of liquid water increases. The paper predicts no magnetic-field effect in a nonpolar liquid such as dodecane.",
  "effect_direction": "mixed",
  "limitations": [
    "The work is theoretical (mechanism/modeling) rather than a new experimental exposure study.",
    "Magnetic-field characteristics (strength, static vs time-varying) are not specified in the abstract.",
    "No quantitative effect sizes or uncertainty estimates are provided in the abstract."
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "magnetic field",
    "sonoluminescence",
    "single-bubble",
    "bubble dynamics",
    "Lorentz force",
    "dipole moment",
    "water",
    "dodecane"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1103/physreve.60.1759
PubMed: 11969959

Read the original paper →

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