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. Author manuscript; available in PMC: 2013 Sep 11.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Oct;57(10):2284–2292. doi: 10.1109/TUFFC.2010.1689

Fig. 13.

Fig. 13

The same set of bar graphs as in Figure 10, except that the model 770 with single-element 55 MHz transducer is compared with the model 2100 30 and 40 MHz linear arrays. The elevational focus of the 40 MHz linear array appears to be a little closer to the focus of the 55 MHz single element transducer than is that of the 30 MHz linear array. Except for no detection of the 200-μm spheres, the 40 MHz linear array is superior to the single element transducer in terms of the much greater detection depth ranges. The 30 MHz linear array is also very good.