Optical pulse width measurements of sonoluminescence in cavitation-bubble fields
<p style="text-align:justify;"> Optical pulse width measurements of sonoluminescence from cavitation-bubble fields have been obtained for two well-defined cavitation zones in an aqueous solution of Glycerin using a fast (650 ps rise-time) PMT and a fast (10 GS/S) digitizer. One zone...
| Autores principales: | , , |
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| Formato: | Journal article |
| Lenguaje: | English |
| Publicado: |
Acoustical Society of America
1998
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| Sumario: | <p style="text-align:justify;"> Optical pulse width measurements of sonoluminescence from cavitation-bubble fields have been obtained for two well-defined cavitation zones in an aqueous solution of Glycerin using a fast (650 ps rise-time) PMT and a fast (10 GS/S) digitizer. One zone corresponds to cavitation produced from an ultrasonic homogenizer. A lens was used to focus on a particular region of “streaming” sonoluminescence. A second, more localized cavitation zone was produced using a 2-in-diam PZT driving crystal in a rectangular fluid-filled container. Single-bubble sonoluminescence was used to characterize the response of the PMT to low-level light input. The measured rise-time and pulse width for sonoluminescence from cavitation fields is indicative of the response of the PMT and suggests that the pulse width of cavitation-field sonoluminescence is much less than 1.1 ns. </p> |
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