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- aggregation classification "C3".
- aggregation creator B122754.
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- aggregation date "2014".
- aggregation format "application/pdf".
- aggregation hasFormat 5778955.bibtex.
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- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Science General".
- aggregation title "High spectral and spatial resolution X-ray transmission radiography and tomography".
- aggregation abstract "In high-resolution radiography and tomography, the local intensity of the X-ray beam is typically measured using an energy-integrating detector system, thus discarding all information on the detected X-ray spectrum. Recently, several direct or hybrid detector systems have been developed which allow for single photon counting using one or more energy thresholds [1]. By measuring the same object at different energy thresholds, it becomes possible to discriminate between different materials in that object. However, this methodology only allows for a limited amount of information about the incident X-ray energy, and the spectral resolution is typically limited to approximately 1 keV. Recently, a new detector system was developed which is able to measure a full-field image at 2048 energy bins, at a spectral resolution comparable with state-of-the-art single-element spectroscopic detectors [2]. This system has already been used for full-field X-ray fluorescence tomography, yielding impressive results in a short measurement time. Here, we present the applicability of this detector in transmission radiography and tomography. The practical limitations of this methodology, which are mainly induced by the low countrate of the system are presented. Furthermore, several results in true spectroscopic X-ray radiography and tomography are presented.".
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- aggregation endPage "151".
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