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Proceedings Paper

Investigation of a near-infrared-ray computed tomography scanner
Author(s): Eiichi Sato; Yasuyuki Oda; Yuichi Satoi; Satoshi Yamaguchi; Tomotaka Ishii; Osahiko Hagiwara; Hiroshi Matsukiyo; Manabu Watanabe; Shinya Kusachi
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Paper Abstract

In the near-infrared-ray computed tomography (NIR-CT) scanner, NIR rays are produced from a light-emitting diode (LED) and detected using an NIR phototransistor (PT). The wavelengths of the LED peak intensity and the PT high sensitivity in the data table are both 940 nm. The photocurrents flowing through the PTR are converted into voltages using an emitter-follower circuit, and the output voltages are sent to a personal computer through an analog-digital converter. The NIR projection curves for tomography are obtained by repeated linear scans and rotations of the object, and the scanning is conducted in both directions of its movement.

Paper Details

Date Published: 3 October 2016
PDF: 6 pages
Proc. SPIE 9969, Radiation Detectors: Systems and Applications XVII, 99690I (3 October 2016); doi: 10.1117/12.2240111
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Yasuyuki Oda, Iwate Medical Univ. (Japan)
Yuichi Satoi, Iwate Medical Univ. Hospital (Japan)
Satoshi Yamaguchi, Iwate Medical Univ. (Japan)
Tomotaka Ishii, Toho Univ. Ohashi Medical Ctr. (Japan)
Osahiko Hagiwara, Toho Univ. Ohashi Medical Ctr. (Japan)
Hiroshi Matsukiyo, Toho Univ. Ohashi Medical Ctr. (Japan)
Manabu Watanabe, Toho Univ. Ohashi Medical Ctr. (Japan)
Shinya Kusachi, Toho Univ. Ohashi Medical Ctr. (Japan)


Published in SPIE Proceedings Vol. 9969:
Radiation Detectors: Systems and Applications XVII
Gary P. Grim; H. Bradford Barber; Lars R. Furenlid, Editor(s)

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