DELAYED NEUTRON EQUILIBRIUM SPECTRA FOR U-235, U-238 AND Pu-239
Department of Physics and Applied Physics
University of Lowell, Lowell, MA 01854, U.S.A.
Equilibrium delayed neutron energy spectra have been measured which encompass up to 93% of the delayed neutrons emitted in the fission of U-235, U-238 and Pu-239. These measurements are compared with equilibrium spectra generated from six-group spectra derived from our separate aggregate measurements and also from compilations based on individual precursor data.
KEYWORDS: fission delayed neutrons, 235U, 238U, 239Pu, equil. energy spectra