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. 2020 Nov 5;50:25. doi: 10.1186/s42649-020-00045-4

Table 2.

Resolution and penetration depth of an acoustic microscopea

Frequency (MHz) Penetration depth (mm) Theoretical lateral resolution (μm) Focal length (mm)
5 15.0 300 19.0
10 10.0 150 15.0
15 5.1 100 19.0
20 4.1 75 15.0
25 4.1 60 15.0
30 3.4 50 12.7
40 5.4 38 20.0
75 3.4 20 12.7
80 2.2 19 8.0
100 0.4 15 1.5
110 2.2 14 8.0
120 2.2 12 8.0
200 0.3 8 7
1000 0.025 1.5 0.08
2000 0.010 0.7 0.05

asome data courtesy of Kramer Scientific Instruments System