Gammex 403 LE 사용자 설명서 - 페이지 13

{카테고리_이름} Gammex 403 LE에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Gammex 403 LE 20 페이지. Precision multi-purpose phantoms

Phantom 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

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)

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.