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Proceedings Paper

Improvement of analysis precision upon the atomic number and electron density measurement by the dual x-ray CT
Author(s): Yukino Imura; Hisashi Morii; Akifumi Koike; Takaharu Okunoyama; Yoichiro Neo; Hidenori Mimura; Toru Aoki
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Paper Abstract

To identify the factor impairing the material identification parameters, which is provided by the dual-energy X-ray computed tomography method using a conventional X-ray tube and a CdTe detector, linear attenuation coefficient was measured by the radioactivity of radio isotopes and compared with theoretical figure. In our study, the atomic number and the electron density is calculated from the linear attenuation coefficient obtained in CT measurement by 64-channel CdTe line detector. To estimate accuracy of CdTe line sensor, it is needed to obtain the linear attenuation coefficient accurately. Using a single detector, the linear attenuation coefficient is verified for accuracy. The energy resolution of CdTe detectors and the method of reconstruction are discussed.

Paper Details

Date Published: 27 August 2010
PDF: 8 pages
Proc. SPIE 7805, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII, 78051M (27 August 2010); doi: 10.1117/12.862639
Show Author Affiliations
Yukino Imura, Shizuoka Univ. (Japan)
Hisashi Morii, Shizuoka Univ. (Japan)
Akifumi Koike, Shizuoka Univ. (Japan)
Takaharu Okunoyama, Shizuoka Univ. (Japan)
Yoichiro Neo, Shizuoka Univ. (Japan)
Hidenori Mimura, Shizuoka Univ. (Japan)
Toru Aoki, Shizuoka Univ. (Japan)

Published in SPIE Proceedings Vol. 7805:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII
Arnold Burger; Larry A. Franks; Ralph B. James, Editor(s)

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