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Title: Development of 3D-CT System Using MIRRORCLE-6X

Abstract

The technique of computed tomography (CT) has been used in various fields, such as medical, non-destructive testing (NDT), baggage checking, etc. A 3D-CT system based on the portable synchrotron 'MIRRORCLE'-series will be a novel instrument for these fields. The hard x-rays generated from the 'MIRRORCLE' have a wide energy spectrum. Light and thin materials create absorption and refraction contrast in x-ray images by the lower energy component (< 60 keV), and heavy and thick materials create absorption contrast by the higher energy component. In addition, images with higher resolutions can be obtained using 'MIRRORCLE' with a small source size of micron order. Thus, high resolution 3D-CT images of specimens containing both light and heavy materials can be obtained using 'MIRRORCLE' and a 2D-detector with a wide dynamic range. In this paper, the development and output of a 3D-CT system using the 'MIRRORCLE-6X' and a flat panel detector are reported.A 3D image of a piece of concrete was obtained. The detector was a flat panel detector (VARIAN, PAXSCAN2520) with 254 {mu}m pixel size. The object and the detector were set at 50 cm and 250 cm respectively from the x-ray source, so that the magnification was 5x. The x-ray source wasmore » a 50 {mu}m Pt rod. The rotation stage and the detector were remote-controlled using a computer, which was originally created using LabView and Visual Basic software. The exposure time was about 20 minutes. The reconstruction calculation was based on the Feldkamp algorithm, and the pixel size was 50 {mu}m. We could observe sub-mm holes and density differences in the object. Thus, the 'MIRRORCLE-CV' with 1MeV electron energy, which has same x-ray generation principles, will be an excellent x-ray source for medical diagnostics and NDT.« less

Authors:
;  [1]; ;  [2]
  1. Department of Photonics, Faculty of Science and Engineering, Ritsumeikan University, Synchrotron Light Life Science Center, Ritsumeikan Univ. (Japan)
  2. Department of Photonics, Faculty of Science and Engineering, Ritsumeikan University (Japan)
Publication Date:
OSTI Identifier:
21056950
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 902; Journal Issue: 1; Conference: 2. international symposium on portable synchrotron light sources and advanced applications, Shiga (Japan), 15-17 Jan 2007; Other Information: DOI: 10.1063/1.2723620; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; ABSORPTION; ALGORITHMS; BIOMEDICAL RADIOGRAPHY; CAT SCANNING; CONCRETES; ELECTRONS; ENERGY SPECTRA; HARD X RADIATION; IMAGES; KEV RANGE; L CODES; PORTABLE SOURCES; REFRACTION; RESOLUTION; SYNCHROTRON RADIATION; SYNCHROTRONS; X-RAY RADIOGRAPHY; X-RAY SOURCES

Citation Formats

Sasaki, M., Yamada, H., Takaku, J., and Hirai, T. Development of 3D-CT System Using MIRRORCLE-6X. United States: N. p., 2007. Web. doi:10.1063/1.2723620.
Sasaki, M., Yamada, H., Takaku, J., & Hirai, T. Development of 3D-CT System Using MIRRORCLE-6X. United States. doi:10.1063/1.2723620.
Sasaki, M., Yamada, H., Takaku, J., and Hirai, T. Fri . "Development of 3D-CT System Using MIRRORCLE-6X". United States. doi:10.1063/1.2723620.
@article{osti_21056950,
title = {Development of 3D-CT System Using MIRRORCLE-6X},
author = {Sasaki, M. and Yamada, H. and Takaku, J. and Hirai, T.},
abstractNote = {The technique of computed tomography (CT) has been used in various fields, such as medical, non-destructive testing (NDT), baggage checking, etc. A 3D-CT system based on the portable synchrotron 'MIRRORCLE'-series will be a novel instrument for these fields. The hard x-rays generated from the 'MIRRORCLE' have a wide energy spectrum. Light and thin materials create absorption and refraction contrast in x-ray images by the lower energy component (< 60 keV), and heavy and thick materials create absorption contrast by the higher energy component. In addition, images with higher resolutions can be obtained using 'MIRRORCLE' with a small source size of micron order. Thus, high resolution 3D-CT images of specimens containing both light and heavy materials can be obtained using 'MIRRORCLE' and a 2D-detector with a wide dynamic range. In this paper, the development and output of a 3D-CT system using the 'MIRRORCLE-6X' and a flat panel detector are reported.A 3D image of a piece of concrete was obtained. The detector was a flat panel detector (VARIAN, PAXSCAN2520) with 254 {mu}m pixel size. The object and the detector were set at 50 cm and 250 cm respectively from the x-ray source, so that the magnification was 5x. The x-ray source was a 50 {mu}m Pt rod. The rotation stage and the detector were remote-controlled using a computer, which was originally created using LabView and Visual Basic software. The exposure time was about 20 minutes. The reconstruction calculation was based on the Feldkamp algorithm, and the pixel size was 50 {mu}m. We could observe sub-mm holes and density differences in the object. Thus, the 'MIRRORCLE-CV' with 1MeV electron energy, which has same x-ray generation principles, will be an excellent x-ray source for medical diagnostics and NDT.},
doi = {10.1063/1.2723620},
journal = {AIP Conference Proceedings},
number = 1,
volume = 902,
place = {United States},
year = {Fri Mar 30 00:00:00 EDT 2007},
month = {Fri Mar 30 00:00:00 EDT 2007}
}