Measurement of the $^{241}$Am(n,2n) Reaction Cross Section with the Activation Technique
ORAL
Abstract
High-precision measurements of the $^{241}$Am(n,2n)$^{240}$Am reaction have been performed with neutron energies from 8.8 to 14.0 MeV. The monoenergetic neutron beams were produced via the $^{2}$H(d,n)$^{3}$He reaction using the 10 MV Tandem accelerator at TUNL. The radioactive targets consisted of 1mg highly-enriched $^{241}$Am sandwiched between four different thin monitor foils. They were irradiated with a neutron flux of 3x10$^{7}$ n cm$^{-2}$ s$^{-1}$. After each irradiation the induced activity in the targets and monitors was measured off-line with 60\% HPGe detectors. Our preliminary neutron induced cross sections will be compared with recent literature results and statistical model calculations using the GNASH and EMPIRE codes.
*Supported by the NNSA under the Stewardship Science Academic Alliances Program through DOE Research grant \#DE-FG03-02NA00073.E and the auspices of the U.S. Department of Energy by LANL (W-7405-ENG-36) and LLNL (W-7405-ENG-48).
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