The 292.4-eV Neutron Resonance Parameters of Zirconium-91

Resonance parameters, particularly the radiative width of the 292.36-eV s-wave level in ⁹¹Zr + n, have been reinvestigated. The spin assignment J = 2⁺ is supported. The neutron width Γ_n = (866 ± 11) meV and radiative width Γ_γ = (86.8 ± 2.2) meV indicate less neutron capture than do parameters derived from earlier studies. This lower capture, however, is more compatible with integral measurements and a lead slowing down spectrometer measurement.