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. Author manuscript; available in PMC: 2019 Dec 29.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Nov;55(11):2418–2425. doi: 10.1109/TUFFC.949

Figure 3.

Figure 3.

Attenuation coefficient vs. frequency in the phantom containing green nylon filaments (*) and in the reference (i.e. without nylon filaments) phantom (o). The dashed line corresponds to a linear regression fit at low frequencies.