Multibubble sonoluminescence pulses from Na atoms in viscous liquid

The Journal of the Acoustical Society of America
Pak-Kon ChoiYuuta Takeuchi

Abstract

Multibubble sonoluminescence pulses of Na and continuum emissions were measured from NaCl-ethylene glycol solution saturated with Xe at 28 kHz. The Na emission consisted of multiple-peak pulses and single pulses. The intrinsic pulse width estimated from single pulses was 0.37 ns, which differs from 10-165 ns obtained by previous work. High-speed shadowgraphs of bubble dynamics and high-speed movies (32000 fps) of sonoluminescence were observed. The observations suggest that the multiple-peak pulse is due to the superposition of single peaks resulting from bubbles fragmented from a characteristic bubble which repeats the fragmentation and coalescence. This phenomenon may be specific to viscous liquids.

References

Jun 21, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·V H Arakeri, A Giri
Dec 31, 2005·Physical Review Letters·Stephen D HopkinsCarlos G Camara
Oct 13, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Junfeng XuXianxian Gao
Dec 29, 2007·The Journal of Physical Chemistry. B·Pak-Kon ChoiYuichi Hayashi
Apr 30, 2009·Journal of the American Chemical Society·Hangxun XuKenneth S Suslick
Dec 22, 2010·Ultrasonics Sonochemistry·Muthupandian Ashokkumar

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