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. Author manuscript; available in PMC: 2010 Apr 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Oct;56(10):2157. doi: 10.1109/TUFFC.2009.1298

Fig. 3.

Fig. 3

Transducer layout: the periodic array has 440 active elements. All elements transmit; the 256 white square elements are shared transmit-receive and the black square elements are transmit-only. Solid and dashed boxes show successive positions of the aperture for RF acquisition.