Neutron Inelastic Scattering Cross Sections From 159Tb(n, nʹϒ)
2002
Scattering cross sections for fast neutrons were investigated for low-lying levels of 159Tb by a Ge detector with a NaI(Tl) Compton suppression annulus in conjunction with the pulsed-beam time-of-flight technique. Thirty-eight transitions from 27 levels were observed and differential gamma-ray production cross sections for the 159Tb(n, n, nʹϒ) reaction were measured at 125° for incident neutron energies from 400 to 1000 keV. Level cross sections were also inferred. Neutron scattering cross sections for the states at 241, 348, 363.5, 535 and 580.7 keV are compared to the ENDF/B-VI, JEF-2, and JENDL-3 evaluations.
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