High-resolution CT system for elemental mapping

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Description

The performance of a low-temperature CCD camera for application in computed tomography (CT) was tested on beamline II-3 at the Stanford Synchrotron Radiation Laboratory (SSRL). In the present system, transmitted x-rays are converted to visible light on a phosphor-coated optical face plate. This light illuminates a thermoelectrically cooled CCD, which is operated as a charge counting device. By modulating the energy of the x-ray beam, we can obtain elemental and chemical-state information about the reconstructed voxels. Presently, the resolution is about 50 microns, and is to a large extent controlled by the quality of the phosphor. The spatial resolution and ... continued below

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Pages: 5

Creation Information

Kinney, J.H.; Johnson, Q.C.; Brase, J.M.; Nichols, M.C.; Nusshardt, R. & Bonse, U. August 1, 1986.

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Description

The performance of a low-temperature CCD camera for application in computed tomography (CT) was tested on beamline II-3 at the Stanford Synchrotron Radiation Laboratory (SSRL). In the present system, transmitted x-rays are converted to visible light on a phosphor-coated optical face plate. This light illuminates a thermoelectrically cooled CCD, which is operated as a charge counting device. By modulating the energy of the x-ray beam, we can obtain elemental and chemical-state information about the reconstructed voxels. Presently, the resolution is about 50 microns, and is to a large extent controlled by the quality of the phosphor. The spatial resolution and chemical sensitivity of the system are reported. Applications to materials and biological sciences are discussed.

Physical Description

Pages: 5

Notes

NTIS, PC A02/MF A01.

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  • 26. SPSE fall symposium and 5. international conference and exposition on electronic imaging, Arlington, VA, USA, 14 Oct 1986

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  • Other: DE86014450
  • Report No.: UCRL-94570
  • Report No.: CONF-8610123-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5421316
  • Archival Resource Key: ark:/67531/metadc1067904

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1, 1986

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 28, 2018, 1:14 p.m.

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Kinney, J.H.; Johnson, Q.C.; Brase, J.M.; Nichols, M.C.; Nusshardt, R. & Bonse, U. High-resolution CT system for elemental mapping, article, August 1, 1986; United States. (digital.library.unt.edu/ark:/67531/metadc1067904/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.