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. 2015 Jan 28;3(1):11–19. doi: 10.1016/j.pacs.2015.01.001

Fig. 6.

Fig. 6

RF signals from one of the array channels for the phantom with a NEB-GNS polyacrylamide inclusion located inside an agarose gel. (a) PA signal, (b) (PA + US+) signal, (c) (PA + US−) signal, (d) subtraction of (b) with US+ signal, (e) subtraction of (c) with US− signal, (f) SPA signal. An 8-cycle US excitation at 3 MHz and focused to 60 mm was synchronized with lasing. The acoustic pressure measured at 35 mm is 1.6 MPa; the laser fluence is 5.2 mJ/cm2.