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. Author manuscript; available in PMC: 2019 May 10.
Published in final edited form as: Phys Med Biol. 2018 May 10;63(10):105001. doi: 10.1088/1361-6560/aabe37

Figure 1.

Figure 1

(a) Schematic of the acoustic field measurement setup in the actual space (not drawn to scale). The transducer was actuated by an electrical signal generated and amplified by a function generator and a linear amplifier, respectively, with impedance matching. Hydrophone scanning was conducted in YZ-, XZ-, XY-planes, and the skull was rotated along each of the x and y axis (0°, ±10° and ±15°). (b) An example of a sheep skull with an applicator. The actual location and orientation of the skull was obtained by an optical tracking system and co-registered to the skull CT data using the coordinate information of the corresponding four fiducial markers indicated with white arrows.