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Inside a collapsing bubble : sonoluminescence and the conditions during cavitation

Suslick, Kenneth S. and Flannigan, David J. (2008) Inside a collapsing bubble : sonoluminescence and the conditions during cavitation. Annual Review of Physical Chemistry, 59 . pp. 659-683. ISSN 0066-426X. doi:10.1146/annurev.physchem.59.032607.093739.

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Acoustic cavitation, the growth and rapid collapse of bubbles in a liquid irradiated with ultrasound, is a unique source of energy for driving chemical reactions with sound, a process known as sonochemistry. Another consequence of acoustic cavitation is the emission of light [sonoluminescence (SL)]. Spectroscopic analyses of SL from single bubbles as well as a cloud of bubbles have revealed line and band emission, as well as an underlying continuum arising from a plasma. Application of spectrometric methods of pyrometry as well as tools of plasma diagnostics to relative line intensities, profiles, and peak positions have allowed the determination of intracavity temperatures and pressures. These studies have shown that extraordinary conditions (temperatures up to 20,000 K; pressures of several thousand bar; and heating and cooling rates of > 10^(12) Ks^(−1)) are generated within an otherwise cold liquid.

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Additional Information:© 2009 Annual Reviews. First published online as a Review in Advance on December 11, 2007. This work has been supported by the U.S. National Science Foundation and in part by the Defense Advanced Research Projects Agency. We wish to thank all of the Suslick group members, past and present, who have contributed over the past 30 years to our sonochemical and sonoluminescence studies.
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Defense Advanced Research Projects AgencyUNSPECIFIED
Subject Keywords:sonochemistry; hydrodynamics; ultrasound; plasma; optical emission spectroscopy
Record Number:CaltechAUTHORS:20090427-151058258
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14092
Deposited By: Tony Diaz
Deposited On:07 Aug 2009 18:56
Last Modified:08 Nov 2021 22:43

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