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- W2071925573 abstract "This work investigates the effect of the energy-weighting technique on the signal to noise ratio (SNR) response of X-ray imaging detectors. So far in the literature all scintillation-detector characteristics (detection efficiency, conversion efficiency, light-attenuation effects, etc) that degrade image quality have been ignored. A theoretical evaluation of the scintillator's SNR output was carried out. An algorithm was produced to describe the variation of the weighting factor, and SNR, with respect to the anode material (Mo or W), in a particular energy range (25-40 keV), typical for mammography, using two different phantoms. Results show that under non-ideal conditions the ratio of the weighted SNR to the original SNR appears to be increasing from values that are close to unity, and under specific conditions, can reach values up to 30. For the further investigation of this method, a more complex, simulated computed tomography breast imaging system was modeled and studied for various parameters such as breast software phantoms, scintillation materials and reconstruction filters. © 2006 Elsevier B.V. All rights reserved." @default.
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- W2071925573 date "2006-12-01" @default.
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- W2071925573 title "The effect of energy weighting on the SNR under the influence of non-ideal detectors in mammographic applications" @default.
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- W2071925573 doi "https://doi.org/10.1016/j.nima.2006.08.019" @default.
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