A 2D 4×4 Channel Readout ASIC for Pixelated CdTe Detectors for Medical Imaging Applications [0.03%]
一种用于医学成像的像素化CdTe探测器的2D四通道读出ASIC
Jose-Gabriel Macias-Montero,Maher Sarraj,Mokhtar Chmeissani et al.
Jose-Gabriel Macias-Montero et al.
We present a 16-channel readout integrated circuit (ROIC) with nanosecond-resolution time to digital converter (TDC) for pixelated Cadmium Telluride (CdTe) gamma-ray detectors. The 4 × 4 pixel array ROIC is the proof of concept of the 10 ...
Element Mapping in Organic Samples Utilizing a Benchtop X-Ray Fluorescence Emission Tomography (XFET) System [0.03%]
基于台式X射线荧光发射层析(XFET)系统的有机样品元素分布分析
A Groll,J George,P Vargas et al.
A Groll et al.
X-ray fluorescence computed tomography (XFCT) is an emerging imaging modality that maps the three-dimensional distribution of elements, generally metals, in ex vivo specimens and potentially in living animals and humans. Building on our pre...
Q Peng,W-S Choong,C Vu et al.
Q Peng et al.
We have constructed and characterized a time-of-flight Positron Emission Tomography (TOF PET) camera called the Tachyon. The Tachyon is a single-ring Lutetium Oxyorthosilicate (LSO) based camera designed to obtain significantly better timin...
Dong Zeng,Jing Huang,Zhaoying Bian et al.
Dong Zeng et al.
Low-dose X-ray computed tomography (CT) simulation from high-dose scan is required in optimizing radiation dose to patients. In this study, we propose a simple low-dose CT simulation strategy in sinogram domain using the raw data from high-...
Effect of Non-Alignment/Alignment of Attenuation Map Without/With Emission Motion Correction in Cardiac SPECT/CT [0.03%]
心肌灌注显像中衰减校正时匹配与否以及是否进行发射断层运动校正在内的四种组合方法的影响研究
Joyoni Dey,W Paul Segars,P Hendrik Pretorius et al.
Joyoni Dey et al.
Purpose: We investigate the differences without/with respiratory motion correction in apparent imaging agent localization induced in reconstructed emission images when the attenuation maps used for attenuation correction ...
An Accurate Timing Alignment Method with Time-to-Digital Converter Linearity Calibration for High-Resolution TOF PET [0.03%]
一种基于时间数字转换器线性校正的高分辨率TOF PET精确时序对齐方法
Hongdi Li,Chao Wang,Shaohui An et al.
Hongdi Li et al.
Accurate PET system timing alignment minimizes the coincidence time window and therefore reduces random events and improves image quality. It is also critical for time-of-flight (TOF) image reconstruction. Here, we use a thin annular cylind...
Arrays of Segmented, Tapered Light Guides for Use with Large, Planar Scintillation Detectors [0.03%]
用于大型平面闪烁探测器的分段渐变光导列阵
Raymond R Raylman,Keith Vaigneur,Alexander V Stolin et al.
Raymond R Raylman et al.
Metabolic imaging techniques can potentially improve detection and diagnosis of cancer in women with radiodense and/or fibrocystic breasts. Our group has previously developed a high-resolution positron emission tomography imaging and biopsy...
George A Kastis,Lars R Furenlid,Donald W Wilson et al.
George A Kastis et al.
We have developed a dual-modality CT/SPECT imaging system for small-animal imaging applications. The X-ray system comprises a commercially available micro-focus X-ray tube and a CCD-based X-ray camera. X-ray transmission measurements are pe...
A Pullia,H W Kraner,D P Siddons et al.
A Pullia et al.
A multichannel silicon pad detector for EXAFS (Extended X-ray Absorption Fine Structure) applications has been designed and built. The X-ray spectroscopic measurements demonstrate that an adequate energy resolution of 230 eV FWHM (correspon...
Impact of the Fano Factor on Position and Energy Estimation in Scintillation Detectors [0.03%]
方差因子对闪烁探测器中位置和能量估计的影响
Vaibhav Bora,Harrison H Barrett,Abhinav K Jha et al.
Vaibhav Bora et al.
The Fano factor for an integer-valued random variable is defined as the ratio of its variance to its mean. Light from various scintillation crystals have been reported to have Fano factors from sub-Poisson (Fano factor < 1) to super-Poisson...