Detector blur associated with MeV radiographic imaging systems

Stuart A. Baker; Stephen S. Lutz; Duane D. Smalley; Kristina K. Brown; Jeremy Danielson; Todd J. Haines; Russell A. Howe; Stephen E. Mitchell; Dane Morgan; Larry J. Schultz

doi:10.1117/12.2191089

27 August 2015 Detector blur associated with MeV radiographic imaging systems

Stuart A. Baker, Stephen S. Lutz, Duane D. Smalley, Kristina K. Brown, Jeremy Danielson, Todd J. Haines, Russell A. Howe, Stephen E. Mitchell, Dane Morgan, Larry J. Schultz

Author Affiliations +

Proceedings Volume 9595, Radiation Detectors: Systems and Applications XVI; 959509 (2015) https://doi.org/10.1117/12.2191089
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

We are investigating scintillator performance in radiographic imaging systems at x-ray endpoint energies of 0.4 and 2.3 MeV in single-pulse x-ray machines. The effect of scene magnification and geometric setup will be examined along with differences between the detector response of radiation and optical scatter. Previous discussion has reviewed energy absorption and efficiency of various imaging scintillators with a 2.3 MeV x-ray source. The focal point of our study is to characterize scintillator blur to refine system models. Typical detector geometries utilize thin tiled LYSO:Ce (cerium-doped lutetium yttrium orthosilicate) assembled in a composite mosaic. Properties of individual tiles are being studied to understand system resolution effects present in the experimental setup. Comparison of two different experiments with different geometric configurations is examined. Results are then compared to different scene magnifications generated in a Monte-Carlo simulation.

Citation Download Citation

Stuart A. Baker, Stephen S. Lutz, Duane D. Smalley, Kristina K. Brown, Jeremy Danielson, Todd J. Haines, Russell A. Howe, Stephen E. Mitchell, Dane Morgan, and Larry J. Schultz "Detector blur associated with MeV radiographic imaging systems", Proc. SPIE 9595, Radiation Detectors: Systems and Applications XVI, 959509 (27 August 2015); https://doi.org/10.1117/12.2191089

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