Gammex 403 LE Manual del usuario - Página 13

Navegue en línea o descargue pdf Manual del usuario para Equipos de prueba Gammex 403 LE. Gammex 403 LE 20 páginas. Precision multi-purpose phantoms

Phantom Specifications

Physical Specifications

Weight..................................................................Approx. 2.8 kg (6 lbs. 5 oz.)
Dimensions....................................................................23.2 x 8.25 x 18.5 cm
...........................................................................(9.25 x 3.25 x 7.25 in.)
Case material..................................................................extruded ABS plastic
Pin target material............................................................Nylon monofilament
Scanning surface......................................................................Composite film

Tissue Mimicking Background Material

Water-based gel with the appearance of human tissue.
Speed of sound...........................................................................1540±10 m/s
Temperature dependence on speed of sound.................................1.5 m/s/ºC
Attenuation coefficient................................................... 0.7±0.05 dB/cm/MHz
............................................................................0.5±0.05 dB/cm/MHz
.................................................................(refer to phantom side label)
Nonlinearity parameter (B/A)................................................................6.6±0.3
.........................................6.7 (Accepted value for human liver tissue)

Low Scatter (Anechoic) Cysts

Speed of sound...........................................................................1540±10 m/s
Temperature dependence on speed of sound..................................1.5m/s/ºC
Attenuation coefficient..................................................0.05±0.01 dB/cm/MHz
All acoustic measurements made at 4.5 MHz, 22ºC
Due to our philosophy of continuous quality improvement,
all specifications are subject to change.
13