Table 1.
Averaged spectral parameters for the two ATS phantoms.
| Test phantom No. 1 | Test phantom No. 2 | |
|---|---|---|
| Slope (dB∕MHz) | 0.8±0.1 | 0.8±0.1 |
| Intercept (dB) | −16.9±1.0 | −17.0±1.0 |
| Midband fit (dB) | −12.5±0.2 | −12.4±0.2 |
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