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Title: Energy Focusing in a Converging Fluid Flow: Implications for Sonoluminescence

Abstract

Cavitation induced by a converging flow leads to such a powerful concentration of energy that subnanosecond flashes of light with an ultraviolet spectrum are emitted. Light intensity is enhanced a factor of 5000 by using xenon rather than helium. This xenon enhancement is similar to that seen with surface bubbles and acoustically driven bubbles in nonaqueous fluids, but contrasts with acoustically driven bubbles in water where xenon is only 5thinspthinsptimes brighter than helium. This system has been studied with the goals of obtaining sonoluminescence from diatomic gases and learning about those aspects of sonoluminescence which are properties of a single collapse. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
; ;  [1]
  1. Physics Department, University of California, Los Angeles, California 90095 (United States)
Publication Date:
OSTI Identifier:
686476
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; FLUID FLOW; CAVITATION; ULTRAVIOLET SPECTRA; EMISSION SPECTRA; XENON; BUBBLES; LUMINESCENCE

Citation Formats

Weninger, K.R., Camara, C.G., and Putterman, S.J. Energy Focusing in a Converging Fluid Flow: Implications for Sonoluminescence. United States: N. p., 1999. Web. doi:10.1103/PhysRevLett.83.2081.
Weninger, K.R., Camara, C.G., & Putterman, S.J. Energy Focusing in a Converging Fluid Flow: Implications for Sonoluminescence. United States. doi:10.1103/PhysRevLett.83.2081.
Weninger, K.R., Camara, C.G., and Putterman, S.J. Wed . "Energy Focusing in a Converging Fluid Flow: Implications for Sonoluminescence". United States. doi:10.1103/PhysRevLett.83.2081.
@article{osti_686476,
title = {Energy Focusing in a Converging Fluid Flow: Implications for Sonoluminescence},
author = {Weninger, K.R. and Camara, C.G. and Putterman, S.J.},
abstractNote = {Cavitation induced by a converging flow leads to such a powerful concentration of energy that subnanosecond flashes of light with an ultraviolet spectrum are emitted. Light intensity is enhanced a factor of 5000 by using xenon rather than helium. This xenon enhancement is similar to that seen with surface bubbles and acoustically driven bubbles in nonaqueous fluids, but contrasts with acoustically driven bubbles in water where xenon is only 5thinspthinsptimes brighter than helium. This system has been studied with the goals of obtaining sonoluminescence from diatomic gases and learning about those aspects of sonoluminescence which are properties of a single collapse. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.83.2081},
journal = {Physical Review Letters},
number = 10,
volume = 83,
place = {United States},
year = {1999},
month = {9}
}