Calculation Of Light Emission In Sonoluminescence
- Department of Physics, Tsinghua University, Beijing 100084 (China)
We modify a uniform model of single bubble sonoluminescence, in which heat diffusion, water vapor diffusion and chemical reactions are included to describe the bubble dynamics and the processes of electron-atom bremsstrahlung, electron-ion bremsstrahlung and recombination radiation and radiative attachment of electrons to atoms and molecules are taken into account to calculate the light emission. With this model, we compute the light pulse width, the photon number of per flash, the spectrum and the gas species as the products of chemical reactions, and try to compare with all the experimental data available. We obtain good agreement with the observations of Ar and Xe bubbles in many cases, but we fail to match the experimental data of the photon number of per flash. We also find that for He bubble the computed photon number is always too small to interpret the observations. The present calculation reveals the typical drawback of the uniform model.
- OSTI ID:
- 21148815
- Journal Information:
- AIP Conference Proceedings, Vol. 1022, Issue 1; Conference: ISNA 18: 18. international symposium on nonlinear acoustics, Stockholm (Sweden), 7-10 Jul 2008; Other Information: DOI: 10.1063/1.2956178; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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