To effectively utilize ultrasonic cavitation for applications including nanoparticle production, extraction, cell disruption, and depolymerization, a minimum ultrasonic amplitude of 70 micrometers is required. Below this threshold, at amplitudes under 50 micrometers, the cavitation effect is too weak to be effective. To boost the amplitude and efficiently transfer cavitation energy to the fluid, an ultrasonic processor with a high-gain acoustic probe is used.