Experimental Validation of k-Wave: Nonlinear Wave Propagation in Layered, Absorbing Fluid Media

<p>The data was collected for characterisation of the source, a single element spherically focusing ultrasound transducer driven with a 4 cycle burst at 1.1 MHz (H151, Sonic Concepts), and validation of simulation of the source propagating into water at a number of different drive levels. Measurements were also made for experimental validation of simulation of a nonlinear ultrasound field propagating through planar and wedge shaped glycerol filled phantoms. </p> <p>All measurements were made with a PVDF needle hydrophone in an automated scanning tank.</p> <p>The study data contains 3 files: 1 containing measurements made in water, 1 with a planar glycerol filled phantom and 1 with a wedge shaped glycerol filled phantom.</p> <p> </p> <p>File 1, medium: water only: </p> <p>Axial scans cover 30 to 200 mm, lateral scans cover -20 to 20 mm.</p> <p>1: XY planar scan for source characterisation at low drive level, measured at z = 40 mm over a 52 by 52 mm plane.</p> <p>2 - 7: Axial scans from 30 to 200 mm, at the lowest drive level (as used in 1), 6 repeats. (Fig 2,3)</p> <p>8: lateral scan, level 1 (Fig 2,3)</p> <p>9-11: Axial scans, level 2 (Fig 3)</p> <p>12-13: lateral scans level 2 (Fig 3)</p> <p>14-16: axial scans level 3 (Fig 3)</p> <p>17-18: lateral scans level 3 (Fig 3)</p> <p>19-21: axial scans level 4 (Fig 3)</p> <p>22-23: lateral scans level 4 (Fig 3)</p> <p>24-26: Axial scans level 5 (Fig 3)</p> <p>27-28: lateral scans level 5 (Fig 3)</p> <p>29-33: axial scans level 6 (Figs 3, 4)</p> <p>34-38: lateral scans level 6 (Figs 3, 4)</p> <p>File 2: medium: water background with planar glycerol phantom</p> <p>1: XZ planar scan from x = -20 mm to 20 mm, z = 60 to 200 mm (beyond phantom) (Figs 5-7)</p> <p>File 3: medium: water background with wedge shaped glycerol phantom</p> <p>1: XZ planar scan from x = -20 to 20 mm, z = 70 to 200 mm (beyond phantom) (Figs 8-10)</p> <p> </p> <p> </p> <p> </p>