A radiation detector (24) includes a two-dimensional array of upper scintillators (30T ) which is disposed facing an x-ray source (14) to convert lower energy radiation events into visible light and transmit hi
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...
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...
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...
Yu Z, Leng S, Jorgensen SM, Li Z, Gutjahr R, Chen B, et al. Evaluation of conventional imaging performance in a research whole-body CT system with a photon-counting detector array. Phys Med Biol 2016;61:1572-1595 Mijnheer BJ, Guldbakke S, Lewis VE, Broerse JJ. Comparison of the ...
Head-to-head and side-by-side tileable detector modules Flexible single and dual energy configurations Application-optimized 20-bit, single-chip ASIC with adjustable full-scale range and 16-bit data output Detector matrix built on individual low-noise BSI photodiodes ...
①X线球管（X-Raytube）；②高压发生器（HVGenerator）；③探测器列阵（DetectorArray）；④数据获取系统(DataAcquisitionSystem)；⑤数据处理系统（DataProcessing）；⑥图像重建-卷积和反投影；（Reconstruction-Convolution&Backprojection）；⑦图像显示—监视器和窗电路；（ImageDisplay-monitor&windowcurcuit）安装与调试对...
①X线球管（X-Raytube）；②高压发生器（HVGenerator）；③探测器列阵（DetectorArray）；④数据获取系统(DataAcquisitionSystem)；⑤数据处理系统（DataProcessing）；⑥图像重建-卷积和反投影；（Reconstruction-Convolution&Backprojection）；⑦图像显示—监视器和窗电路；（ImageDisplay-monitor&windowcurcuit）安装与调试对...
“层”(slice)和“排”(detector -row)是两个完全不同的概念。“排”是指CT探测器 在Z轴方向的物理排列数目,即有多少排探测器,是CT的硬件结构性参数;而“层”是指 CT数据采集系统(Data Acquisitio 32、n System,DAS)同步获得图像的能力,即同步采集 图像的DAS通道数目或机架旋转时同步采集的图像层数,是CT的...
PROBLEM TO BE SOLVED: To provide a manufacturing method for solid detectors for CTs which increases the precision of arrangement of detector arrays, and uses unexpensive scintillator crystals.;SOLUTION: First of all, a scintillator bar crystal 1 having a square cross section is glued onto a base...