Time-gated energy-selected cold neutron radiography Metadata

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Title

  • Main Title Time-gated energy-selected cold neutron radiography

Creator

  • Author: McDonald, Thomas E., Jr.
    Creator Type: Personal
  • Author: Brun, Torben O.
    Creator Type: Personal
  • Author: Claytor, Thomas N.
    Creator Type: Personal
  • Author: Farnum, Eugene H.
    Creator Type: Personal
  • Author: Greene, Goffrey L.
    Creator Type: Personal
  • Author: Morris, Christopher
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Assistant Secretary for Human Resources and Administration.
    Contributor Type: Organization
    Contributor Info: USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States)

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 1998-12-01

Language

  • English

Description

  • Content Description: A technique is under development at the Los Alamos Neutron Science Center (LANSCE), Manuel Lujan Jr. Neutron Scattering Center (Lujan Center) for producing neutron radiography using only a narrow energy range of cold neutrons. The technique, referred to as Time-Gated Energy-Selected (TGES) neutron radiography, employs the pulsed neutron source at the Lujan Center with time of flight to obtain a neutron pulse having an energy distribution that is a function of the arrival time at the imager. The radiograph is formed on a short persistence scintillator and a gated, intensified, cooled CCD camera is employed to record the images, which are produced at the specific neutron energy range determined by the camera gate. The technique has been used to achieve a degree of material discrimination in radiographic images. For some materials, such as beryllium and carbon, at energies above the Bragg cutoff the neutron scattering cross section is relatively high while at energies below the Bragg cutoff the scattering cross section drops significantly. This difference in scattering characteristics can be recorded in the TGES radiography and, because the Bragg cutoff occurs at different energy levels for various materials, the approach can be used to differentiate among these materials. This paper outlines the TGES radiography technique and shows an example of radiography using the approach.
  • Physical Description: 20 pages

Subject

  • Keyword: Cold Neutrons
  • Keyword: Neutron Radiography
  • STI Subject Categories: 43 Particle Accelerators
  • Keyword: Time-Of-Flight Method
  • STI Subject Categories: 07 Isotopes And Radiation Sources
  • STI Subject Categories: 42 Engineering
  • Keyword: Accelerator Facilities
  • Keyword: Neutron Sources

Source

  • Conference: 3. international topical meeting on neutron radiography, Lucerne (CH), 03/16/1998--03/19/1998; Other Information: Supercedes report DE99001123

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE99001123
  • Report No.: LA-UR--98-833
  • Report No.: CONF-980337--
  • Report No.: ON:DE99001123
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 296794
  • Archival Resource Key: ark:/67531/metadc685747

Note

  • Display Note: INIS; OSTI as DE00296794
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