Niobium resonance parameters

Abstract

Neutron resonances for niobium were investigated in the energy range 30 to 1400 eV using the General Atomic linear accelerator, a 4000 1 liquid scintillator capture γ-ray detector and the time-of-flight method. Resonance parameters were deduced from capture and self-indication data. The average total radiation widths were found to be Γ γ = 135 meV for s-wave levels and Γ γ = 170 meV for p-wave levels. Radioactivity was observed in 94Nb with a half-life of ≈ 65 μsec and is thought to be due to an unidentified isometric state.