The study of neutron activation yields in spallation reaction of 400 MeV/u carbon on a thick lead target
F.Ma, H.L.Ge, X.Y.Zhang, H.B.Zhang, Y.Q.Ju, L.Chen, L.Yang, F.Fu,, Y.L.Zhang, J.Y.LI, T.J.Liang, B.Zhou, S.L.Wang, J.Y.Li, J.K.Xu, X.G.Leir,, Z.Qin, L.Gu, G.M.Jin
TL;DR
This paper experimentally investigates neutron yields from 400 MeV/u carbon spallation on lead, analyzing isotope production via activation analysis and comparing results with Monte Carlo simulations to understand neutron distribution.
Contribution
It provides new experimental data on neutron yields and distributions in spallation reactions, validated against advanced simulation codes.
Findings
Neutron yields were quantified through isotope activation analysis.
Spatial and energy distributions of neutrons were characterized.
Experimental results showed good agreement with GEANT4 + FLUKA simulations.
Abstract
The spallation-neutron yield was studied experimentally by bombarding a thick lead target with 400 MeV/u carbon beam. The data were obtained with the activation analysis method using foils of Au, Mn, Al, Fe and In. The yields of produced isotopes were deduced by analyzing the measured {\gamma} spectra of irradiated foils. According to the isotopes yields, the spatial and energy distributions of the neutron field were discussed. The experimental results were compared with Monte Carlo simulations performed by the GEANT4 + FLUKA code.
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