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7 April 2023 Flat panel detector with a drainable liquid spectral separator for dual-energy x-ray and cone-beam CT imaging
Emily Cai, Kevin Treb, Christian De Caro, Ke Li
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Proceedings Volume 12463, Medical Imaging 2023: Physics of Medical Imaging; 1246311 (2023) https://doi.org/10.1117/12.2654226
Event: SPIE Medical Imaging, 2023, San Diego, California, United States
Abstract
Flat panel detectors (FPDs) with two separate scintillator layers enable dual-energy (DE) 2D and 3D x-ray imaging with perfect temporal registration. A thick (1 mm) Cu layer is permanently sandwiched between the two scintillators to widen the spectral separation. Because the majority of clinical applications of FPDs do not benefit from DE imaging, the existence of the Cu layer during those applications degrades the overall dose efficiency. In this work, a novel dual-layer FPD design with a removable liquid filter design was presented to improve the dose efficiency of dual-layer FPDs when they are used for non-DE imaging applications.
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Emily Cai, Kevin Treb, Christian De Caro, and Ke Li "Flat panel detector with a drainable liquid spectral separator for dual-energy x-ray and cone-beam CT imaging", Proc. SPIE 12463, Medical Imaging 2023: Physics of Medical Imaging, 1246311 (7 April 2023); https://doi.org/10.1117/12.2654226
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KEYWORDS
X-ray detectors
X-rays
Liquids
Sensors
Scintillators
X-ray computed tomography
X-ray imaging
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