Three-dimensional cavitation quantitative imaging method for microsecond-resolution cavitation spatial-temporal distribution

Abstract

A three-dimensional cavitation quantitative imaging method for a microsecond-resolution cavitation spatial-temporal distribution includes steps of: after each wide beam detection, moving an array transducer by one unit; waiting until the cavitation nuclei distribution backs to an initial state, then detecting the cavitation by the wide beam detection with same cavitation energy incitation, so as to obtain a spatial series of two-dimensional cavitation raw radio frequency data corresponding to different placing positions of the array transducer; then changing the cavitation energy source duration, time delays between energy source incitation and the wide beam transmitted by the array transducer, and time delays between the pulsating pump and energy source incitation, so as to obtain a temporal series of two-dimensional cavitation raw radio frequency data; and then obtaining a microsecond-resolution three-dimensional cavitation spatial-temporal distribution image and a cavitation micro bubble concentration quantitative Nakagami parametric image.