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  • Title: Plasma core at the center of a sonoluminescing bubble.
    Author: Bemani F, Sadighi-Bonabi R.
    Journal: Phys Rev E Stat Nonlin Soft Matter Phys; 2013 Jan; 87(1):013004. PubMed ID: 23410423.
    Abstract:
    Considering high temperature and pressure during single bubble sonoluminescence collapse, a hot plasma core is generated at the center of the bubble. In this paper a statistical mechanics approach is used to calculate the core pressure and temperature. A hydrochemical model alongside a plasma core is used to study the bubble dynamics in two host liquids of water and sulfuric acid 85 wt % containing Ar atoms. Calculation shows that the extreme pressure and temperature in the plasma core are mainly due to the interaction of the ionized Ar atoms and electrons, which is one step forward to sonofusion. The thermal bremsstrahlung mechanism of radiation is used to analyze the emitted optical energy per flash of the bubble core.
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