Response function estimation with fine energy bins for the energy-resolved computed tomography using a transXend detector |
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Authors: | Yoshihiro Maruyama Takumi Hamaguchi Tien-Hsiu Tsai |
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Affiliation: | Graduate School of Engineering, Kyoto University, Nishikyo, Kyoto, Japan |
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Abstract: | A new ‘transXend’ detector system has been developed for energy-resolved computed tomography (CT). It consists of several segmented detectors that measure X-rays as electric currents. Response functions of segmented detectors are estimated using component materials of a body under inspection to unfold X-ray spectra. To avoid material-dependent measurements, response functions inherent to segmented detectors are evaluated by Monte Carlo calculations. CT was performed for a phantom consisting of five resins and was analyzed by the estimated response functions. The linear attenuation coefficients for the five resins have excellent agreement with database values. |
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Keywords: | X-ray computed tomography energy-resolved unfolding response function linear attenuation coefficient material distinction |
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