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Proceedings Paper

Cancer diagnosis using a conventional x-ray fluorescence camera with a cadmium-telluride detector
Author(s): Eiichi Sato; Toshiyuki Enomoto; Osahiko Hagiwara; Abulajiang Abudurexiti; Koetsu Sato; Shigehiro Sato; Akira Ogawa; Jun Onagawa
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Paper Abstract

X-ray fluorescence (XRF) analysis is useful for mapping various atoms in objects. Bremsstrahlung X-rays are selected using a 3.0 mm-thick aluminum filter, and these rays are absorbed by indium, cerium and gadolinium atoms in objects. Then XRF is produced from the objects, and photons are detected by a cadmium-telluride detector. The Kα photons are discriminated using a multichannel analyzer, and the number of photons is counted by a counter card. The objects are moved and scanned by an x-y stage in conjunction with a two-stage controller, and X-ray images obtained by atomic mapping are shown on a personal computer monitor. The scan steps of the x and y axes were both 2.5 mm, and the photon-counting time per mapping point was 0.5 s. We carried out atomic mapping using the X-ray camera, and Kα photons from cerium and gadolinium atoms were produced from cancerous regions in nude mice.

Paper Details

Date Published: 15 September 2011
PDF: 5 pages
Proc. SPIE 8143, Medical Applications of Radiation Detectors, 81430L (15 September 2011); doi: 10.1117/12.893328
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Toshiyuki Enomoto, The Toho Univ. (Japan)
Osahiko Hagiwara, The Toho Univ. (Japan)
Abulajiang Abudurexiti, Toreck, Inc. (Japan)
Koetsu Sato, Toreck, Inc. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Jun Onagawa, Tohoku Gakuin Univ. (Japan)

Published in SPIE Proceedings Vol. 8143:
Medical Applications of Radiation Detectors
H. Bradford Barber; Hans Roehrig; Douglas J. Wagenaar, Editor(s)

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