PRECISION SMALL PARTS GREY SCALE PHANTOM MODEL 404GS LE AND MODEL 404 LE

Precision Small Parts Grey Scale Phantoms Model 404GS LE AND 404 LE
The Precision Small Parts Grey Scale Phantom 404GS LE provides advanced technology for measuring image quality of small parts and intra-cavity ultrasound scanning systems. With added grey scale targets this small parts phantom also  measures contrast, temporal resolution and system linearity.  The 404 LE has the same general target layout and  specifications as the 404GS LE but does not include grey scale targets.   This phantom incorporates our new Tissue Mimicking (TM) gel which provides a smoother background texture and a new composite film scanning surface that has improved transmission properties so more of the ultrasonic beam can be transmitted and received.   Unique to the Gammex 404GS LE are closely spaced pin targets ideal for testing a range of high frequency transducers. Resolution patterns and all vertical and horizontal targets are made of 0.1 mm nylon fibers for better detail definition and  spatial resolution.   Three grey scale targets of -6 dB, +6 dB and high scatter relative to the background material are included in the 404GS LE.   The Gammex 404GS LE provides the sonographer with the following features: • Axial and lateral resolution targets at 1, 3.5 and 6 cm for precise resolution measurements • Low scatter cysts of 1, 2, 4 and 7 mm diameters to evaluate system noise and distortion • 7 mm grey scale targets of -6 dB, +6 dB and high scatter relative to background material • Attenuation coefficients of 0.5 or 0.7 dB/cm/MHz • Convertible water dam for gel or water coupled scanning • Integral cover to protect scanning surface • Durable ergonomic design for handling ease   Optional accessories for the Gammex line of Ultrasound phantoms include Soft Foam-Lined Carrying Case, Rigid Case, or the Precision Ultrasound Transducer Guide.
This ultrasound image demonstrates a linear scan of the Precision Small Parts Grey Scale Phantom 404GS LE in split screen mode
SPECIFICATIONS High Resolution Tissue Mimicking Gel Speed of sound . . 1540 ±10 m/s at 22°C Attenuation . . . . 0.5 or 0.7 ±0.05 dB/cm/MHz Targets Anechoic Cysts Diameters . . . . . 1, 2, 4 and 7 mm Speed of sound . . 1540 ±10 m/s at 22°C Attenuation . . . . 0.05 ±0.01 dB/cm/MHz Grey Scale Targets Contrast. . . . . . . -6, +6 and +12 dB relative to background Diameter . . . . . . 7 mm Speed of sound . . 1540 ±10 m/s at 22°C Attenuation . . . . 0.5 or 0.7 ±0.05 dB/cm/MHz Pin Targets Diameter of nylon lines . . . . . 0.1 mm (0.004 in) Vertical spacing. . 5 mm at 1 to 9 cm deep Horizontal spacing . . . . . . . 10 mm at 1 and 5 cm deep Construction Scanning surface . . . . . . . Composite Film Walls . . . . . . . . . Extruded ABS Dimensions . . . . . 15.2x8.25x18.5 cm (6x3.25x7.25 in) Weight. . . . . . . . 1.8 kg (4 lbs) All acoustic measurements at 4.5 MHz, 22°C