Dual-energy neutron tomography of water in rock using the Argonne IPNS

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In dual-energy hydrogen imaging, the increase in hydrogen neutron cross-section at subthermal neutron energies is used to enhance the imaging of small amounts of hydrogen against a background of other absorbing materials by subtracting a tomographic image obtained for higher energy neutrons from that obtained for subthermal neutrons (picking energies such that the other absorbing materials have nearly the same cross-sections at both energies). This technique was used to provide dual-energy imaging of water in tuffaceous rock, with the goal being to track water flow through porous rock for site risk analysis of permanent disposal of radwaste. A feasibility experiment ... continued below

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6 p.

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Rhodes, E.; Kupperman, D.S. & Hitterman, R.L. July 1, 1992.

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In dual-energy hydrogen imaging, the increase in hydrogen neutron cross-section at subthermal neutron energies is used to enhance the imaging of small amounts of hydrogen against a background of other absorbing materials by subtracting a tomographic image obtained for higher energy neutrons from that obtained for subthermal neutrons (picking energies such that the other absorbing materials have nearly the same cross-sections at both energies). This technique was used to provide dual-energy imaging of water in tuffaceous rock, with the goal being to track water flow through porous rock for site risk analysis of permanent disposal of radwaste. A feasibility experiment was conducted at the IPNS facility with coarse spatial resolution, yielding promising results.

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6 p.

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INIS; OSTI as DE92015186

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  • 4. world conference on neutron radiography, San Francisco, CA (United States), 11-14 May 1992

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  • Other: DE92015186
  • Report No.: ANL/CP--76140
  • Report No.: CONF-9205157--4
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 138427
  • Archival Resource Key: ark:/67531/metadc626044

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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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  • July 1, 1992

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  • June 16, 2015, 7:43 a.m.

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  • Dec. 14, 2015, 12:49 p.m.

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Rhodes, E.; Kupperman, D.S. & Hitterman, R.L. Dual-energy neutron tomography of water in rock using the Argonne IPNS, article, July 1, 1992; Illinois. (digital.library.unt.edu/ark:/67531/metadc626044/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.