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Peak pressure amplitude, peak intensity, average intensity, the size of the acoustic edge in the x, y, and z directions for a SonoKnife transducer and a spherical-section transducer with the same radiating surface area and emittance.
| f (MHz) | R (mm) | r (mm) | L (mm) | Peak pressure (MPa) | Peak intensity (W/cm2) | Avg. intensity (W/cm2) | Ax (mm) | Ay (mm) | Az (mm) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Spherical transducer | 3.0 | 60 | 47.95 | — | 12.7 | 4507 | 2455 | 0.875 | 0.875 | 6.625 |
| SonoKnife transducer | 3.0 | 60 | 60 | 30 | 2.82 | 224 | 118 | 0.625 | 28.63 | 4.375 |
