WE-G-211-09: X-Ray Compton Scatter Imaging on Volumetric CT Systems

2011 ◽  
Vol 38 (6Part34) ◽  
pp. 3837-3837
Author(s):  
T Niu ◽  
L Zhu
Keyword(s):  
Compton Scatter ◽  
X Ray ◽  
Volumetric Ct ◽  
Compton Scatter Imaging

The use of short and wide x-ray pulses for time-of-flight x-ray Compton Scatter Imaging in cargo security

2015 ◽  
Author(s):  
Nick Calvert ◽  
Marta M. Betcke ◽  
John R. Cresswell ◽  
Alick N. Deacon ◽  
Anthony J. Gleeson ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Compton Scatter ◽  
X Ray ◽  
Compton Scatter Imaging

scholarly journals Feasibility Study of Time-of-Flight Compton Scatter Imaging Using Picosecond Length X-Ray Pulses

2014 ◽  
Vol 61 (6) ◽  
pp. 3701-3710 ◽  
Author(s):  
Nick Calvert ◽  
Marta M. Betcke ◽  
Alick N. Deacon ◽  
Anthony J. Gleeson ◽  
Clive Hill ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Time Of Flight ◽  
Compton Scatter ◽  
X Ray ◽  
Compton Scatter Imaging

Nondestructive Inspection of Thin, Low-Z Samples using Multiplexed Compton Scatter Tomography

1997 ◽  
Vol 503 ◽  
Author(s):  
B. L. Evans ◽  
J. B. Martin ◽  
L. W. Burggraf
Keyword(s):  
Signal To Noise Ratio ◽  
Reconstruction Algorithm ◽  
Filtered Backprojection ◽  
Line Broadening ◽  
Compton Scatter ◽  
X Ray ◽  
Tomography System ◽  
Transmission Computed Tomography ◽  
High Purity Germanium ◽  
Scattered Energy

ABSTRACTThe viability of a Compton scattering tomography system for nondestructively inspecting thin, low Z samples for corrosion is examined. This technique differs from conventional x-ray backscatter NDI because it does not rely on narrow collimation of source and detectors to examine small volumes in the sample. Instead, photons of a single energy are backscattered from the sample and their scattered energy spectra are measured at multiple detector locations, and these spectra are then used to reconstruct an image of the object. This multiplexed Compton scatter tomography technique interrogates multiple volume elements simultaneously. Thin samples less than 1 cm thick and made of low Z materials are best imaged with gamma rays at or below 100 keV energy. At this energy, Compton line broadening becomes an important resolution limitation. An analytical model has been developed to simulate the signals collected in a demonstration system consisting of an array of planar high-purity germanium detectors. A technique for deconvolving the effects of Compton broadening and detector energy resolution from signals with additive noise is also presented. A filtered backprojection image reconstruction algorithm with similarities to that used in conventional transmission computed tomography is developed. A simulation of a 360–degree inspection gives distortion-free results. In a simulation of a single-sided inspection, a 5 mm × 5 mm corrosion flaw with 50% density is readily identified in 1-cm thick aluminum phantom when the signal to noise ratio in the data exceeds 28.

scholarly journals Characterization of Compton-scatter imaging with an analytical simulation method

2018 ◽  
Vol 63 (2) ◽  
pp. 025016 ◽  
Author(s):  
Kevin C Jones ◽  
Gage Redler ◽  
Alistair Templeton ◽  
Damian Bernard ◽  
Julius V Turian ◽  
...  
Keyword(s):  
Simulation Method ◽  
Compton Scatter ◽  
Analytical Simulation ◽  
Compton Scatter Imaging
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