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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2018 Jan;65(1):30–38. doi: 10.1109/TUFFC.2017.2773495

Fig. 5.

Fig. 5

Synthesized transmit pressure field at the focal depth for the source at T = 9.45 mm with (a) varying transmit beam spacing with a fixed 60 degree span and (b) transmit beam total span with a fixed 0.25 degree spacing. All images are individually normalized.