Measurement of neutron attenuation through thick shields and comparison with calculation Metadata

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Title

  • Main Title Measurement of neutron attenuation through thick shields and comparison with calculation

Creator

  • Author: Bull, J. S.
    Creator Type: Personal
  • Author: Donahue, J. B.
    Creator Type: Personal
  • Author: Burman, R. L.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, 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: 1998-12-31

Language

  • English

Description

  • Content Description: The large neutrino experiments conducted over the last several years at the Los Alamos Neutron Science Center (LANSCE) have provided the opportunity to measure the effects of neutron attenuation in very thick shields. These experiments have featured detectors with active masses of 6 to 150 tons and shield thicknesses ranging from 3000 to 5280 g/cm{sup 2}. An absolute measurement of the high-energy neutron flux was made from the beam stop in a neutrino cave at ninety degrees and nine meters from the beam stop. Differential neutron shielding measurements in iron were also performed, resulting in an attenuation length of 148 g/cm{sup 2}. These measurements allow for the testing of radiation shielding codes for deep penetration problems. The measured flux and attenuation length is compared to calculations using the LAHET Code System (LCS). These codes incorporate biasing techniques, allowing for direct calculation of deep penetration shielding problems. Calculations of the neutron current and attenuation length are presented and compared with measured values. Results from the shielding codes show good agreement with the measured values.
  • Physical Description: 9 p.

Subject

  • Keyword: Attenuation
  • STI Subject Categories: 43 Particle Accelerators
  • Keyword: L Codes
  • Keyword: Neutron Transport
  • Keyword: Neutrons
  • Keyword: Biological Shields
  • Keyword: Accelerator Facilities
  • STI Subject Categories: 66 Physics
  • Keyword: Comparative Evaluations

Source

  • Conference: 4. workshop on simulating accelerator radiation environments, Knoxville, TN (United States), 14-16 Sep 1998

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: DE99002559
  • Report No.: LA-UR--98-3977
  • Report No.: CONF-9809135--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 350906
  • Archival Resource Key: ark:/67531/metadc686219

Note

  • Display Note: INIS; OSTI as DE99002559
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