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Multipurpose Phantom ATS 514 Tests Performed • Dead Zone or Ring-Down • Vertical Measurement Calibration • Horizontal Measurement Calibration • Axial and Lateral Resolution • Sensitivity • Functional Resolution • Definition and Fill-in • Gray Scale & Displayed Dynamic Range Uses • Quality Assurance • Clinical Performance • In-Process Manufacturing • Final Q.A. Inspection • Research & Development • Teaching   The Model 514 Multipurpose Phantom is composed of a hydrogel-based material which acoustically mimics human tissue. The phantom is contained in an acrylic housing to provide strength and permanence. A soft polyurethane film with an impedance closely matching that of human skin is used for the scan window, thereby allowing easy transmission of the ultrasound beam into the phantom. A built-in scanning well is provided to allow the use of water as the coupling medium. However, coupling gels may be used if desired. The phantom is designed specifically to evaluate the performance of sector scan, linear, phased and annular array ultrasound imaging systems.     Specifications   General   Overall dimensions   23.5 x 22.4 x 9.7 cm*   Weight   5.33 Kg*   Housing Material   Acrylic   Scan Surface   1   Scan Surface Material  Polyurethane Membrane   Scan Surface Dimensions   22.0 x 8.0*   Tissue Mimicking Material   Type   Hydrogel   Freezing Point   0° C   Melting Point   49° C   Speed of Sound   1540 m/s ± 1.0% at 23° C Attenuation Coefficient   0.5 db/cm/Mhz ± 5.0%   Scan Surface Dimensions   22.0 x 8.0*   Line Targets   Material   Monofilament nylon   Diameter   0.12 mm  ±  5.0%   Dead Zone     Number of Targets   6   Lateral Displacement   5 mm   ±  0.1mm   Depth   5 to 10 mm  ±  0.1mm   Vertical Group     Number of targets   23   Interval Spacing Depth   .5 cm   ±  0.1mm   1.0 - 5.0 cm   Interval Spacing Depth   1.0 cm   ±  0.1mm   5.0 - 20.0 cm   Anechoic Target Structure   Type   Non-echogenic, cylindrical   Positional Tolerance   ±  0.1mm   Diameter Tolerance   ±  5 %   Number of Groups   5   Diameters   Interval Spacing   (center to center)   Depth of 1.0 - 3.0 cm   Depth of 3.0 - 20.0 cm     2, 3, 4, mm   1.0 cm   2.0 cm   Diameters   Interval Spacing   (center to center)   Depth of 2.0 - 20.0 cm    6.0, 8.0 mm  2.0 cm  Horizontal     Number of Groups   3   Target per group   5   Depth   3.0, 8.0 12.0 cm   Interval Spacing   1.0 cm   Axial-Lateral Resolution   Number of Group   3   Target per group   10   Depth   3.5, 7.0, 12.0 cm   Lateral Displacement   1.0 mm  ±  0.1mm   Axial Spacing   4, 3, 2, 1, .5 mm   Lateral Spacing   4. 3, 2, 1 mm   Gray Scale Target Structures   Type   Number of Targets   Diameter   Depth   Echogenic cylindrical   4   10 mm   ±  5.0 %   4 cm   ±  1.0 mm   Contrast relative to the   background material (dB)   +6, +3, -3, -6 *Nominal dimensions WARRANTY One Year

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