Macroscopic ESWL-induced cavitation: in vitro studies.
The rarefaction shock wave results in a liquid failure at the target/fluid interface. In the wake of the reflected ESWL-induced shock wave, a macroscopic cavity is generated in filtered water. The cavity implosion induces a large shock wave, divulging the bubble existence and lifetime. The existence of this shock wave is revealed by the diffraction of a He-Ne laser beam. The induced cavitation bubbles are registered by a camera, illuminated by an externally triggered stroboscope (exposure time 10 microseconds). The radius of the large cavity bubble, generated at the stone surface, is time dependent as theoretically predicted.
Pittomvils
G
G
Catholic University Leuven, Department of Didactical Physics, Belgium.
Lafaut
J P
JP
Vandeursen
H
H
De Ridder
D
D
Baert
L
L
Boving
R
R
D000162:Acoustics; D006801:Humans; D066298:In Vitro Techniques; D007669:Kidney Calculi / Q000628:therapy; D008096:Lithotripsy / Q000009:adverse effects* / Q000379:methods; D055585:Physical Phenomena; D010825:Physics; D014741:Video Recording