. 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 I.

Acoustic intensity, power output, and electric-to-acoustic energy conversion efficiency of the 1.1 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	77.4	36.5	0.47	1.56	1.14	72.7%
0.1	281	146	0.52	6.36	3.95	62.1%
0.2	1082	605	0.56	23.5	15.0	63.0%
0.3	2458	1426	0.58	51.5	33.1	64.3%
0.4	4433	2657	0.60	86.2	59.6	69.2%
0.5	5996	4365	0.73	125	81.6	65.6%