A radiation detector (24), comprising an upper scintillator (30 T ) of the two-dimensional array, disposed at a position facing the x-ray source to receive radiation, low energy radiation is converted into visible light and transmission of high-energy radiation. 下部闪烁体(30B)的二维阵列,其...
Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.doi:US7054408 B2Haochuan JiangDavid M. HoffmanJames S. VartuliUS7054408 Apr 30, 2003 May 30, 2006 General Electric Company CT detector array having non pixelated scintillator array...
正电子发射型断层仪(Positron Emission Tomography, PET)是对正电子示踪剂的探测设备,具有极高灵敏度和精准的定量功能。而PET/CT是将PET与CT有机结合起来的融合设备,已经成为肿瘤、神经和心血管系统疾病诊断,临床分期和疗效评估的最佳影像技术。PET探测器(Detector)是PET、PET/CT...
左:CT设备原理图,Fan Beam Rotation: 从X射线管发射出来的扇形光束围绕着患者进行旋转, detector array: X射线接收器阵列, scan bed: 扫描床。 中:CT设备内部结构图。 右:商用CT设备的外观。 2. CT图像重建 在获得了一个物体的多角度X射线的投影信息之后,我们又要如何去重建呢? 我们首先要回顾一下X射线投影...
The detector array measures the amount of X-rays that pass throughthe body and are absorbed by the tissues. The data collected by the detector array is processed by a computer, which creates a cross-sectional image of thebody. The image shows the different densities of the tissues in the ...
Aurora CT is the industry’s first off-the-self detector subsystem for security CT applications. The plug-and-play-type solution includes ready-made, multislice detector boards, a control unit and a software library. Aurora CT speeds up time-to-market and decreases total costs of X-ray imagi...
The X-ray detector is a fundamental component of a CT system that determines the image quality and dose efficiency. Until the approval of the first clinica
[1,2]. In the early days of CT, successive single-slice attainments with different kVp were performed as a dual-energy technique. In contrast, the DSCT system is equipped with two data measurement systems, each comprised of one X ray tube and one corresponding ...
24-row adaptive detector array Max. number of slices per rotation: 16 (acquired) / 32 (reconstructed)4 70 cm gantry with ±30° tilt System software and applications SureView VRT WorkStream4D CT Angiography Vessel View, with Automated Bone Removal Adaptive Sign...
对图像质量产生影响的机器部件: X X线球管(X-Ray tubeX-Ray tube); 高压发生器(HV GeneratorHV Generator); 探测器列阵(Detector ArrayDetector Array); 数据获取系统 (Data Acquisition System)(Data Acquisition System); 数据处理系统(Data 6、ProcessingData Processing); 图像重建- -卷积和反投影; ( R e...