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Proceedings Paper

Simple x-ray computed tomography system utilizing a cadmium telluride detector
Author(s): Eiichi Sato; Seiichiro Nomiya; Keitaro Hitomi; Hideaki Onabe; Tadayoshi Shoji; Etsuro Tanaka; Toshiaki Kawai; Takashi Inoue; Akira Ogawa; Shigehiro Sato; Toshio Ichimaru; Kazuyoshi Takayama
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Paper Abstract

A simple x-ray computed tomography (CT) system utilizing a cadmium telluride detector and its application to enhanced iodine K-edge angiography are described. The CT system is of the first generation type and consists of an x-ray generator, a turn table, a translation unit, a motor drive unit, a cadmium telluride detector, an interface unit for the detector, and a personal computer (PC). Tomography was performed by the repetition of the translation and rotation. Narrow-photon-energy bremsstrahlung x-rays with a peak photon energy of approximately 35 keV is very useful for performing enhanced K-edge angiography because these rays are absorbed effectively by iodine-based contrast media with a K-edge of 33.2 keV. The tube voltage, the tube current, and the aluminum filter thickness were 60 kV, 1.5 mA, and 3.0 mm, respectively. Holes filled with iodine media in phantoms are visible with high contrasts, and the CT system can be applied to photon-counting and fluorescent x-ray CT systems.

Paper Details

Date Published: 24 September 2007
PDF: 6 pages
Proc. SPIE 6706, Hard X-Ray and Gamma-Ray Detector Physics IX, 67060Y (24 September 2007); doi: 10.1117/12.733420
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Seiichiro Nomiya, Raytech Inc. (Japan)
Keitaro Hitomi, Tohoku Institute of Technology (Japan)
Hideaki Onabe, Raytech Inc. (Japan)
Tadayoshi Shoji, Tohoku Institute of Technology (Japan)
Etsuro Tanaka, Tokyo Univ. of Agriculture (Japan)
Toshiaki Kawai, Hamamatsu Photonics K.K. (Japan)
Takashi Inoue, Iwate Medical Univ. (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Toshio Ichimaru, Hirosaki Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. Biomedical Engineering Research Organization (Japan)


Published in SPIE Proceedings Vol. 6706:
Hard X-Ray and Gamma-Ray Detector Physics IX
Ralph B. James; Arnold Burger; Larry A. Franks, Editor(s)

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