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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2012 Jul;59(7):1421–1431. doi: 10.1109/TUFFC.2012.2343

Fig. 10.

Fig. 10

Variation of normalized magnitude of Δf component with Nc,1 varying focal location for x0 = 0–25 mm and z0 = 20 mm. The total number of channels was Nc = 128. The values were normalized for the case of Nc,1 = Nc,2 = 64.