Bubble proliferation in the cavitation field of a shock wave lithotripter

被引：32

作者：

Pishchalnikov, Yuri A. ^{[1
]}

Williams, James C., Jr. ^{[1
]}

McAteer, James A. ^{[1
]}

机构：

[1] Indiana Univ Sch Med, Dept Anat & Cell Biol, Indianapolis, IN 46202 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2011年 / 130卷 / 02期

基金：

美国国家卫生研究院;

关键词：

PULSE REPETITION FREQUENCY;

D O I：

10.1121/1.3609920

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Lithotripter shock waves (SWs) generated in non-degassed water at 0.5 and 2 Hz pulse repetition frequency (PRF) were characterized using a fiber-optic hydrophone. High-speed imaging captured the inertial growth-collapse-rebound cycle of cavitation bubbles, and continuous recording with a 60 fps camcorder was used to track bubble proliferation over successive SWs. Microbubbles that seeded the generation of bubble clouds formed by the breakup of cavitation jets and by bubble collapse following rebound. Microbubbles that persisted long enough served as cavitation nuclei for subsequent SWs, as such bubble clouds were enhanced at fast PRF. Visual tracking suggests that bubble clouds can originate from single bubbles. (C) 2011 Acoustical Society of America

引用

页码：EL87 / EL93

页数：7