Table 1.
Characteristics of transducer.
| Central frequency | 48 MHz |
| −6 dB bandwidth | 35 MHz |
| f-number | 1.5 |
| Depth of focus | 6 mm |
| Aperture size | 4 mm |
| Axial resolution | 24 μm |
| Lateral resolution | 48 μm |
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