Neutron-Induced Partial Gamma-Ray Cross-Section Measurements on Uranium at TUNL

ORAL

Abstract

Precision measurements of (n,n') and (n,2n) reaction cross sections have been performed on $^{235,238}$U targets at Triangle Universities Nuclear Laboratory using a pulsed and monoenergetic neutron beam. The excitation function has been studied with incident neutron energies between 5 and 14 MeV and beam flux of 10$^{4}$ n s$^{-1}$ cm$^{-2}$ at target position. Multiple partial cross sections have been determined observing gamma rays in clover and planar HPGe detectors. The results will be compared with calculations using Hauser-Feshbach model.

*Supported by the NNSA under the Stewardship Science Alliances Program through DOE Research Grant \# DE-FG52-06NA26155.

Authors

  • A. Hutcheson

  • A.S. Crowell

  • B. Fallin

  • C.R. Howell

  • M. Kiser

  • E. Kwan

  • A.P. Tonchev

  • W. Tornow

    • Duke University/TUNL
  • J.H. Kelley

    • North Carolina State University/TUNL
  • C.T. Angell

  • H.J. Karwowski

    • University of North Carolina/TUNL
  • R.S. Pedroni

    • North Carolina A\&T
  • G.J. Weisel

    • Penn State Altoona
  • J.A. Becker

  • D. Dashdorj

  • R.A. Macri

    • Lawrence Livermore National Laboratory
  • N. Fotiades

  • R.O. Nelson

    • Los Alamos National Laboratory