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Computer tomography apparatus, photon number determination program, photon number determination apparatus and calibration program
Computer tomography apparatus, photon number determination program, photon number determination apparatus and calibration program
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机译:计算机断层摄影设备,光子数量确定程序,光子数量确定设备和校准程序
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摘要
A method for photon count-loss calibration in a computed-tomography (CT) scanner, including capturing incident X-ray photons via a plurality of energy-discriminating detectors, determining photon counts of the captured incident X-ray photons in a plurality of energy windows at each energy-discriminating detector, and adjusting the determined photon counts in each energy window for each energy-discriminating detector based on a pre-determined photon count-loss look-up table and the determined photon counts.
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