Review of Livermore-Led Neutron Capture Studies Using DANCE Metadata

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Title

  • Main Title Review of Livermore-Led Neutron Capture Studies Using DANCE

Creator

  • Author: Parker, W
    Creator Type: Personal
  • Author: Sheets, S
    Creator Type: Personal
  • Author: Agvaanluvsan, U
    Creator Type: Personal
  • Author: Becker, J
    Creator Type: Personal
  • Author: Becvar, F
    Creator Type: Personal
  • Author: Bredeweg, T
    Creator Type: Personal
  • Author: Clement, R
    Creator Type: Personal
  • Author: Couture, A
    Creator Type: Personal
  • Author: Esch, E
    Creator Type: Personal
  • Author: Haight, R
    Creator Type: Personal
  • Author: Jandel, M
    Creator Type: Personal
  • Author: Krticka, M
    Creator Type: Personal
  • Author: Mitchell, G
    Creator Type: Personal
  • Author: Macri, R
    Creator Type: Personal
  • Author: O'Donnell, J
    Creator Type: Personal
  • Author: Reifarth, R
    Creator Type: Personal
  • Author: Rundberg, R
    Creator Type: Personal
  • Author: Schwantes, J
    Creator Type: Personal
  • Author: Ullmann, J
    Creator Type: Personal
  • Author: Vieira, D
    Creator Type: Personal
  • Author: Wouters, J
    Creator Type: Personal
  • Author: Wilk, P
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Date

  • Creation: 2007-05-11

Language

  • English

Description

  • Content Description: We have made neutron capture cross-section measurements using the white neutron source at the Los Alamos Science Center, the DANCE detector array (Detector for Advanced Neutron Capture Experiments) and targets important for basic science and stockpile stewardship. In this paper, we review results from (n,{gamma}) reactions on {sup 94,95}Mo, {sup 152,154,157,160,nat}Gd, {sup 151,153}Eu and {sup 242m}Am for neutron energies from < 1eV up to {approx} 20 keV. We measured details of the {gamma}-ray cascade following neutron capture, for comparison with results of statistical model simulations. We determined the neutron energy dependent (n,{gamma}) cross section and gained information about statistical decay properties, including the nuclear level density and the photon strength function. Because of the high granularity of the detector array, it is possible to look at gamma cascades with a specified number of transitions (a specific multiplicity). We simulated {gamma}-ray cascades using a combination of the DICEBOX/GEANT computer codes. In the case of the deformed nuclei, we found evidence of a scissors-mode resonance. For the Eu, we also determined the (n,{gamma}) cross sections. For the {sup 94,95}Mo, we focused on the spin and parity assignments of the resonances and the determination of the photon strength functions for the compound nuclei {sup 95,96}Mo. Future plans include measurements on actinide targets; our immediate interest is in {sup 242m}Am.
  • Physical Description: 6 p. (0.5 MB)

Subject

  • Keyword: Los Alamos
  • Keyword: Compound Nuclei
  • Keyword: Deformed Nuclei
  • Keyword: Strength Functions
  • Keyword: Capture
  • Keyword: Gamma Cascades
  • Keyword: Energy-Level Density
  • Keyword: Neutrons
  • Keyword: Cross Sections
  • Keyword: Computer Codes
  • Keyword: Neutron Reactions
  • STI Subject Categories: 73 Nuclear Physics And Radiation Physics
  • Keyword: Statistical Models
  • Keyword: Neutron Sources

Source

  • Conference: Presented at: International Conference on Nuclear Data for Science and Technology, Nice, France, Apr 22 - Apr 27, 2007

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

  • Report No.: UCRL-CONF-231210
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 914617
  • Archival Resource Key: ark:/67531/metadc880800

Note

  • Display Note: PDF-file: 6 pages; size: 0.5 Mbytes