美國(guó)ATS 538NH波束輪廓和切片厚度模體提供了一種評(píng)估成像系統(tǒng)在不同深度時(shí)的薄片厚度的方法。

美國(guó)ATS 538NH波束輪廓和切片厚度模體產(chǎn)品簡(jiǎn)介：

ATS 538NH波束輪廓和切片厚度模體有兩個(gè)掃描平面。散射面向掃描面方向?yàn)?5°，垂直于另一個(gè)掃描面。
光束剖面很容易顯示在不同的深度，并包含了大量的信息有關(guān)的聲音光束的配置，因?yàn)樗鼈鞑ネㄟ^(guò)組織模擬介質(zhì)。光束剖面清晰地顯示了遠(yuǎn)場(chǎng)中的近場(chǎng)、焦距、聚焦區(qū)、光束寬度、側(cè)面和光柵瓣以及光束發(fā)散情況。此外，近場(chǎng)的振幅變化表現(xiàn)為亮度的不同程度和遠(yuǎn)場(chǎng)振幅的幾乎均勻性。

538NH模型提供了一種評(píng)估成像系統(tǒng)在不同深度時(shí)的薄片厚度的方法。層厚或高度分辨率是空間分辨率的第三部分，顯示結(jié)構(gòu)在光束主軸前后產(chǎn)生的反射。切片厚度的變化與軸向和橫向分辨率的變化是一致的。切片厚度越薄，分辨率越好;隨著切片厚度的增加，空間分辨率降低。終身保修。

測(cè)試

光束剖面

切片厚度

圖像均勻性

組織諧波成像相容性




ATS 538NH波束輪廓和切片厚度模體產(chǎn)品用途：

質(zhì)量保證

最后問(wèn)題A.檢查

研發(fā)

過(guò)程中制造

教學(xué)




美國(guó)ATS 538NH波束輪廓和切片厚度模體產(chǎn)品規(guī)格：

一般

整體尺寸：25x22x7厘米

掃描表面：3

體重：3.4公斤

仿組織材料：聚氨酯橡膠

冰點(diǎn)：<-40°C

Melting Point: >100°C Attenuation Coefficient: 0.5

dB/cm/MHz ± 5.0%

聲速：在23°時(shí)為1450 m/s±1.0%



目標(biāo)散射面在45°處與用于測(cè)量層厚的掃描面成角，與束廓線掃描面成90°。
大?。?6x7厘米
深度：0至22厘米
*終身?yè)?dān)保*

The phantom contains a thin plane of echogenic material embedded in a non-echoic rubber-based tissue-mimicking matrix. Model 538N-H has two scan planes. The scattering plane is oriented at 45° to one scan plane and perpendicular to the other.

The beam profile is easily displayed at varying depths, and contains a great deal of information regarding the configuration of the sound beam as it propagates through the tissue-mimicking media. The beam profile clearly displays the near field, focal length, focal zone, beam width, side and grating lobes and beam divergence in the far field. In addition, amplitude variations in the near field are displayed as varying degrees of brightness versus the almost homogeneity of the amplitude in the far field.

The Model 538N-H provides a means of evaluating the slice thickness of an imaging system at varying depths. Slice thickness or elevational resolution, the third component of spatial resolution, displays reflections produced by structures in front of or behind the beam’s main axis. The effect of changes in the slice thickness is identical to those seen with axial and lateral resolution. The thinner the slice thickness the better the resolution; as the slice thickness increases, the degree of spatial resolution decreases. Lifetime warranty.

Tests Performed
Beam Profile
Slice Thickness
Image Uniformity
Tissue Harmonic Imaging Compatibility


Uses:
Quality Assurance
Final Q.A. Inspection
Research & Development
In-Process Manufacturing
Teaching


Specifications

General

Overall Dimensions: 25 x 22 x 7 cm
Scan Surfaces: 3
Weight: 3.4 Kg
Tissue Mimicking Material: Urethane rubber
Freezing Point: <-40°C
Melting Point: >100°C Attenuation Coefficient: 0.5
dB/cm/MHz ± 5.0%
Speed of Sound: 1450 m/s ±1.0% at 23°


Targets Scattering plane oriented at 45° to the scan planes used to measure slice thickness, and 90° to the beam profile scan plane

Size: 26 x 7 cm
Depth: 0 to 22 cm

ATS 538NH模體