Energy-discriminating K-edge x-ray computed tomography system

Manabu Watanabe; Eiichi Sato; Purkhet Abderyim; Hiroshi Matsukiyo; Akihiro Osawa; Toshiyuki Enomoto; Jiro Nagao; Seiichiro Nomiya; Keitaro Hitomi; Akira Ogawa; Shigehiro Sato; Toshio Ichimaru

doi:10.1117/12.795874

3 September 2008 Energy-discriminating K-edge x-ray computed tomography system

Manabu Watanabe, Eiichi Sato, Purkhet Abderyim, Hiroshi Matsukiyo, Akihiro Osawa, Toshiyuki Enomoto, Jiro Nagao, Seiichiro Nomiya, Keitaro Hitomi, Akira Ogawa, Shigehiro Sato, Toshio Ichimaru

Author Affiliations +

Proceedings Volume 7080, Penetrating Radiation Systems and Applications IX; 70800B (2008) https://doi.org/10.1117/12.795874
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

An energy-discriminating K-edge x-ray Computed Tomography (CT) system is useful for increasing contrast resolution of a target region and for diagnosing cancers utilizing a drug delivery system. The CT system is of the first generation type and consists of an x-ray generator, a turn table, a translation stage, a two-stage controller, a cadmium telluride (CdTe) detector, a charge amplifier, a shaping amplifier, a multi-channel analyzer (MCA), a counter board (CB), and a personal computer (PC). The K-edge CT is accomplished by repeating translation and rotation of an object. Penetrating x-ray spectra from the object are measured by a spectrometer utilizing the CdTe detector, amplifiers, and MCA. Both the photon energy and the energy width are selected by the MCA for discriminating photon energy. Enhanced iodine K-edge x-ray CT was performed by selecting photons with energies just beyond iodine K-edge energy of 33.2 keV.

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Manabu Watanabe, Eiichi Sato, Purkhet Abderyim, Hiroshi Matsukiyo, Akihiro Osawa, Toshiyuki Enomoto, Jiro Nagao, Seiichiro Nomiya, Keitaro Hitomi, Akira Ogawa, Shigehiro Sato, and Toshio Ichimaru "Energy-discriminating K-edge x-ray computed tomography system", Proc. SPIE 7080, Penetrating Radiation Systems and Applications IX, 70800B (3 September 2008); https://doi.org/10.1117/12.795874

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