Nondestructive inspection using compton scatter tomography
Document Type
Article
Publication Date
1-1-1998
Abstract
A method for non-invasively generating tomographic images of electron density in materials using Compton scattered gamma rays is investigated. Electron density is an indicator of density or composition changes in a material. In Compton scatter tomography, the energy distribution of monoenergetic gamma rays is measured after scattering from a material target. Measuring a scattered gamma ray's energy localizes the scattering position to a definable region of the sample. We develop an analytic computational model to study the image quality of a realistic system. In particular, the deleterious effects of finite source and detector size, Compton broadening, and Poisson noise are investigated. A backprojection algorithm is presented to demonstrate the impact of these effects on image reconstruction and contrast recovery. Detection of corrosion in low-Z materials is an application of interest, and is used to study the Compton scatter tomography technique. © 1998 IEEE.
Publication Title
IEEE Transactions on Nuclear Science
Recommended Citation
Evans, B.
(1998).
Nondestructive inspection using compton scatter tomography.
IEEE Transactions on Nuclear Science,
45(3 PART 1), 950-956.
http://doi.org/10.1109/23.682682
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10213