Three-dimensional columnar CsI model for x-ray imaging system simulations using MANTIS: validating for noise, blur, and light output

2006 ◽  
Author(s):  
Aldo Badano ◽  
Iacovos S. Kyprianou ◽  
Josep Sempau
Keyword(s):  
Imaging System ◽  
Three Dimensional ◽  
Light Output ◽  
X Ray ◽  
X Ray Imaging

scholarly journals Tomosaic: efficient acquisition and reconstruction of teravoxel tomography data using limited-size synchrotron X-ray beams

2018 ◽  
Vol 25 (5) ◽  
pp. 1478-1489 ◽  
Author(s):  
Rafael Vescovi ◽  
Ming Du ◽  
Vincent de Andrade ◽  
William Scullin ◽  
Dogˇa Gürsoy ◽  
...  
Keyword(s):  
Imaging System ◽  
Three Dimensional ◽  
Computing System ◽  
X Rays ◽  
X Ray ◽  
High Penetration ◽  
X Ray Imaging ◽  
Software Modules ◽  
Dimensional Reconstruction ◽  
Tomography Data

X-rays offer high penetration with the potential for tomography of centimetre-sized specimens, but synchrotron beamlines often provide illumination that is only millimetres wide. Here an approach is demonstrated termed Tomosaic for tomographic imaging of large samples that extend beyond the illumination field of view of an X-ray imaging system. This includes software modules for image stitching and calibration, while making use of existing modules available in other packages for alignment and reconstruction. The approach is compatible with conventional beamline hardware, while providing a dose-efficient method of data acquisition. By using parallelization on a distributed computing system, it provides a solution for handling teravoxel-sized or larger datasets that cannot be processed on a single workstation in a reasonable time. Using experimental data, the package is shown to provide good quality three-dimensional reconstruction for centimetre-sized samples with sub-micrometre pixel size.

Three-dimensional X-ray imaging system and its application in power equipment

2019 ◽  
Vol 61 (10) ◽  
pp. 572-576
Author(s):  
Fei Zhong ◽  
Fumu Zhang ◽  
Liping Zhang ◽  
Ming Hao
Keyword(s):  
Power Supply ◽  
Imaging System ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Projection Data ◽  
Power Equipment ◽  
Control Data ◽  
X Ray ◽  
Inverse Transform ◽  
X Ray Imaging

The medical computed tomography (CT) technique cannot be directly applied to power equipment, such as gas-insulated switchgear (GIS), because of its huge size and immovability. In this research, a three-dimensional X-ray imaging system is developed for GIS equipment. The three-dimensional X-ray imaging system includes machinery, motion control, data acquisition, image reconstruction and three-dimensional image display subsystems. The principle of three-dimensional X-ray imaging is based on the Radon transform and the inverse transform. The rotary scanning device successfully collects 360 sets of projection data. The tomographic image is reconstructed using the acquired projection data. Shown in this paper is what is believed to be the world's first three-dimensional structure photograph of GIS that can be sliced and displayed using X-ray imaging. The application of the three-dimensional X-ray imaging system to the 110 kV GIS equipment at the Shayao Station of the Dongguan Power Supply Bureau shows that the overall accuracy of the system can reach up to 200 microns and the highest resolution of the output tomogram can reach up to 3160 × 3160 pixels.

Evaluation of a photon counting X-ray imaging system

2002 ◽  
Author(s):  
M. Lundqvist ◽  
B. Cederstrom ◽  
V. Chmill ◽  
M. Danielsson ◽  
B. Hasegawa
Keyword(s):  
Imaging System ◽  
Photon Counting ◽  
X Ray ◽  
X Ray Imaging
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