Spatial Distribution of Acoustic Cavitation Bubbles at Different Ultrasound Frequencies
نویسندگان
چکیده
منابع مشابه
On acoustic cavitation of slightly subcritical bubbles
The classical Blake threshold indicates the onset of quasistatic evolution leading to cavitation for gas bubbles in liquids. When the mean pressure in the liquid is reduced to a value below the vapor pressure, the Blake analysis identifies a critical radius which separates quasistatically stable bubbles from those which would cavitate. In this work, we analyze the cavitation threshold for radia...
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Efficient and noninvasive generation of cavitation bubbles in soft tissue is a challenging task due to the lack of cavitation nuclei (i.e., pre-existing gas bubbles). In this study, we present a method to generate and enhance cavitation activity based on the utilization of two consecutive ultrasound waves at different frequencies. First, a high frequency (5 MHz) high intensity focused ultrasoun...
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BACKGROUND The observation of ultrasound generated cavitation bubbles deep in tissue is very difficult. The development of an imaging method capable of investigating cavitation bubbles in tissue would improve the efficiency and application of ultrasound in the clinic. Among the previous imaging modalities capable of detecting cavitation bubbles in vivo, the acoustic detection technique has the ...
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ژورنال
عنوان ژورنال: ChemPhysChem
سال: 2010
ISSN: 1439-4235
DOI: 10.1002/cphc.200901037