Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 124 / Number 3 / Pages 482-491
Y. Danon, M. S. Moore, P. E. Koehler, P. E. Littleton, G. G. Miller, M. A. Ott, L. J. Rowton, W. A. Taylor, J. B. Wilhelmy, M. A. Yates, A. D. Carlson, R. Harper, R. Hilko
Nuclear Science and Engineering / Volume 124 / Number 3 / Pages 482-491
Format:electronic copy (download)
Transmutation of actinide waste into fission products could be enhanced by using resonance fission of odd-odd target materials; those of interest are 232Pa, 238Np, and 242Am. Fission cross-section measurements of two of these short-lived materials were performed at Los Alamos National Laboratory. Samples were produced by the (d,2n) reaction in the Los Alamos Ion Beam Facility followed by fast radiochemistry to separate the odd-odd target of interest. The fission cross section of the nanogram samples was measured in a high intensity pulsed neutron beam produced by 800-MeVproton spallation. Using this procedure, the fission cross sections of the 1.3-day 232Pa and 2.1-day 238Np were successfully measured in the energy range from 0.01 eV to 50 keV. The fission cross section of the relatively long-life isotope 2S6Np was also measured in the same system while the short half-life isotopes were being prepared. The results and resonance analysis are presented.
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