Fission of 232Th in a spallation neutron field
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The spatial distributions of thorium fission reaction rate in a spallation neutron field of thick lead target bombarded by protons or deuterons with energy between 1.0 and 3.7 GeV were measured. Approximately a linear dependence of the thorium fission rate on the beam energy is observed. The mean fission cross section of 232Th 〈σ f 〉 ≈ 123 mb and it does not depend on energy and type of the beam particles.
KeywordsThorium Beam Energy Neutron Energy Nucleus Letter Beam Particle
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