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. Author manuscript; available in PMC: 2006 Sep 6.
Published in final edited form as: Ultrasound Med Biol. 2006 Jul;32(7):1085–1096. doi: 10.1016/j.ultrasmedbio.2006.03.015

Figure 6.

Figure 6

The measured spectrum for the propagation of a 0.840-MHz converging wave at 21 Wa for a distance of 400 mm in degassed deioinized water. The presence of nonlinear higher harmonic formation is evident.