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Proceedings Paper

Energy-discriminating K-edge x-ray computed tomography system
Author(s): Manabu Watanabe; Eiichi Sato; Purkhet Abderyim; Hiroshi Matsukiyo; Akihiro Osawa; Toshiyuki Enomoto; Jiro Nagao; Seiichiro Nomiya; Keitaro Hitomi; Akira Ogawa; Shigehiro Sato; Toshio Ichimaru
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Paper 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.

Paper Details

Date Published: 3 September 2008
PDF: 5 pages
Proc. SPIE 7080, Penetrating Radiation Systems and Applications IX, 70800B (3 September 2008); doi: 10.1117/12.795874
Show Author Affiliations
Manabu Watanabe, Toho Univ. School of Medicine (Japan)
Eiichi Sato, Iwate Medical Univ. (Japan)
Purkhet Abderyim, Iwate Univ. (Japan)
Hiroshi Matsukiyo, Toho Univ. School of Medicine (Japan)
Akihiro Osawa, Toho Univ. School of Medicine (Japan)
Toshiyuki Enomoto, Toho Univ. School of Medicine (Japan)
Jiro Nagao, Toho Univ. School of Medicine (Japan)
Seiichiro Nomiya, Raytec Inc. (Japan)
Keitaro Hitomi, Tohoku Institute of Technology (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Toshio Ichimaru, Hirosaki Univ. (Japan)

Published in SPIE Proceedings Vol. 7080:
Penetrating Radiation Systems and Applications IX
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Richard C Schirato, Editor(s)

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