Image restoration of high-energy X-ray radiography with a scintillator blur model

High-energy X-ray radiographic image restoration is performed using a simulated radiation point spread function and an experimentally derived optical point spread function. It is shown that a robust method for removal of thick monolithic scintillator blur can be determined through independent examin...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2020-07, Vol.968 (C), p.163910, Article 163910
Main Authors: Smalley, Duane, Baker, Stuart, Baldonado, Brandon, Castaneda, Jesus, Corredor, Andrew, Clayton, Jessica H., Fegenbush, Logan, Gautier, Cort, Gehring, Amanda, Haines, Todd, Lucero, James, Stearns, John, Walters, Katie
Format: Article
Language:English
Subjects:
Blur
Image restoration
Imaging
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Radiography
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Summary:High-energy X-ray radiographic image restoration is performed using a simulated radiation point spread function and an experimentally derived optical point spread function. It is shown that a robust method for removal of thick monolithic scintillator blur can be determined through independent examination of the blur components. We show that the scintillator blur for a 20 MeV end-point X-ray beam and 20 mm thick LYSO scintillator contributes significantly to the system blur. It is also shown that the optical scatter in the monolithic crystal degrades the low-frequency response of the system. The use of a simulated point spread function for image restoration using deconvolution provides a simple method for image restoration, thereby enhancing feature identification and areal density reconstruction.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2020.163910