. Author manuscript; available in PMC: 2007 Sep 27.

Published in final edited form as: J Acoust Soc Am. 2006 Aug;120(2):676–685. doi: 10.1121/1.2214131

TABLE III.

Acoustic intensity, power output, and electric-to-acoustic energy conversion efficiency of the 3.3 MHz HIFU transducer.

Output V_pp (V)	I_SPPA (W/cm²)	I_SAPA (W/cm²)	I_SAPA/I_SPPA	P_in (W)	P (W)	P/P_in
0.05	240	127	0.53	1.10	0.72	65.4%
0.1	981	551	0.56	4.38	2.92	66.8%
0.2	3728	2338	0.63	17.52	12.71	72.5%
0.3	7088	4801	0.68	40.75	28.05	68.8%
0.4	9730	6849	0.70	73.36	50.54	68.9%
0.5	10 967	8144	0.74	109.56	62.90	57.4%