Thermal neutron cross section determination of short-to-medium lived nuclides using a 20 Ci Am-Be neutron source

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dc.contributor.author Agbemava, S.E.
dc.contributor.author Nyarko, B.J.B.
dc.contributor.author Fletcher, J.J.
dc.contributor.author Sogbadji, R.B.M.
dc.contributor.author Mensimah, E.
dc.contributor.author Asamoah, M.
dc.date.accessioned 2019-05-08T11:45:52Z
dc.date.available 2019-05-08T11:45:52Z
dc.date.issued 2011-08
dc.identifier.other https://doi.org/10.1016/j.anucene.2011.04.004
dc.identifier.other Volume 38, Issue 8, Pages 1737-1742
dc.identifier.uri http://ugspace.ug.edu.gh/handle/123456789/29873
dc.description.abstract While there are growing demands for the nuclear data at higher energy regions than keV for up-to-date scientific and technological development, accurate capture cross sections at thermal energy are still needed. The thermal neutron capture cross sections for the reactions 127I(n,γ) 128I, 152Sm(n,γ)153Sm, 154Sm(n,γ)155Sm, and 238U(n,γ) 239U were determined by the method of foil activation using 55Mn(n,γ)56Mn as a reference reaction. The experimental samples with and without a Cd cover were irradiated in an isotropic neutron field of a 20 Ci 241Am-Be neutron source facility. A high purity Ge detector was used to measure the induced gamma-rays from the samples and the monitor. The thermal neutron capture cross sections of the reactions 127I(n,γ)128I, 152Sm(n,γ) 153Sm, 154Sm(n,γ)155Sm, and 238U(n,γ)239U were deduced from the analysis of obtained gamma-ray spectra. The thermal neutron capture cross section values for 127I(n,γ)128I, 152Sm(n,γ) 153Sm, 154Sm(n,γ)155Sm, and 238U(n,γ)239U reactions are (5.93 ± 0.52), (207.3 ± 9.4), (7.7 ± 0.3), and (2.79 ± 0.09) barns respectively. The obtained results have been discussed and compared with the available experimental data and were found to be in agreement with each other. © 2011 Elsevier Ltd. All rights reserved. en_US
dc.language.iso en en_US
dc.publisher Annals of Nuclear Energy en_US
dc.subject 241Am-Be en_US
dc.subject Activation method en_US
dc.subject Cross section en_US
dc.subject Gamma-ray en_US
dc.subject Thermal neutrons en_US
dc.title Thermal neutron cross section determination of short-to-medium lived nuclides using a 20 Ci Am-Be neutron source en_US
dc.type Article en_US


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