Improved Angular Uncertainty Estimation for Compton Imagers

Conference · Mon Nov 07 00:00:00 EST 2022 · IEEE Nuclear Science Symposium Conference Record

DOI:https://doi.org/10.2172/1923342· OSTI ID:1923342

Mitchell, Jonathan ^[1]; Liesenfelt, Michael ^[1]; Preston, Jeff ^[2]; Montz, Blake ^[1]; Venkataraman, Ramkumar ^[3]; Hayward, Jason ^[1]

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1. Univ. of Tennessee, Knoxville, TN (United States)
2. Y-12 National Security Complex, Oak Ridge, TN (United States)
3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Compton imaging is a method for localizing a photon source using Compton scatter events as measured by a position sensitive photon detector. Using the measured interaction positions and energy depositions for a Compton event, a cone can be back projected which represents all possible origin locations for that source photon. Given enough Compton events, the source can be localized via identifying the regions where many of these cones intersect. An illustration of this effect is given in the figure below. The region intersected by the three cones in this case is a likely origin point for the photon source.

• Research Organization: Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-NA0001942
• OSTI ID: 1923342
• Report Number(s): IROS66839
• Journal Information: IEEE Nuclear Science Symposium Conference Record, Conference: IEEE Nuclear Science Symposium; Milan, Italy; Nov. 7, 2022; ISSN 1095-7863
• Publisher: IEEE
• Country of Publication: United States
• Language: English

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