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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Ultrasound Med Biol. 2011 Jan 26;37(3):484–492. doi: 10.1016/j.ultrasmedbio.2010.12.005

Fig. 3.

Fig. 3

(A) Geometry for the experiment examining the receiving frequency response of the PPA probe. (B) Frequency response of the custom PPA driven by the preamplifier board.