Experimental study reveals fast neutron elastic scattering cross-sections on natural cerium, providing an essential benchmark for optical-model calculations.
Elastic scattering of fast neutrons at an incident energy of 30.8 MeV on a natural cerium target was measured during an experiment conducted at the Neutrons For Science facility at GANIL-SPIRAL2. This is the first measurement on cerium using incident neutron energy above 20 MeV. The differential cross-section up to 40 ^∘ ∘ in the centre-of-mass frame was extracted using the MONSTER liquid scintillator array for the scattered neutron detection. The experimental results are compared to global optical-model calculations, providing an overall very good agreement and a useful benchmark at intermediate energy.
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Miriot-Jaubert et al. (2026) studied this question.
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