Fig. 1.

Simulation of the acoustic profile of an ultrasound transducer of 350 kHz frequency and 1 MPa input acoustic pressure. The ultrasound transducer is modeled as a straight line across the top of the computational grid with its focal point being at a distance of 12 mm from the face of the transducer. (a) Simulated ultrasound pressure amplitude (in kPa) around the focal point in the XY plane. (b) Simulated maximum output acoustic intensity (in W/ ${cm}^2$) in the XY-plane.