Spallation yield of neutrons produced in thick lead target bombarded with 250MeV protons

Spallation yield of neutrons produced in thick lead target bombarded with 250MeV protons

The neutron yield from thick target of Pb irradiated with 250MeV protons has been studied experimentally. The neutron production was measured with the water-bath gold method. The thermal neutron distributions in the water were determined according to the measured activities of Au foils. Correspondin...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2015-01, Vol.342, p.87-90
Hauptverfasser: Chen, L., Ma, F., Zhanga, X.Y., Ju, Y.Q., Zhang, H.B., Ge, H.L., Wang, J.G., Zhou, B., Li, Y.Y., Xu, X.W., Luo, P., Yang, L., Zhang, Y.B., Li, J.Y., Xu, J.K., Liang, T.J., Wang, S.L., Yang, Y.W., Gu, L.
Format: Artikel
Sprache:eng
Schlagworte:
Cadmium
Foils
Gold
Irradiation
Lead (metal)
Mathematical analysis
Monte Carlo code
Neutron flux
Neutron yield
Production methods
Spallation reaction
Thermal neutrons
Water bath method
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The neutron yield from thick target of Pb irradiated with 250MeV protons has been studied experimentally. The neutron production was measured with the water-bath gold method. The thermal neutron distributions in the water were determined according to the measured activities of Au foils. Corresponding results calculated with the Monte Carlo code MCNPX were compared with the experimental data. It was found out that the Au foils with cadmium cover significantly changed the spacial distribution of the thermal neutron field. The corrected neutron yield was deduced to be 2.23±0.19 n/proton by considering the influence of the Cd cover on the thermal neutron flux.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2014.09.020