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- W2949969696 abstract "Neutron activation analysis is generally carried out with reactor neutrons using the (n,γ) reaction. However, for cases where the (n,γ) reaction products have unsuitable decay properties, or if due to low cross-section the process is not very specific, activation with 14 MeV neutrons and identification of the (n,x) reaction products may be of advantage. This is particularly true for the light elements where fast neutron activation is often considerably more specific. Thus, with thermal neutrons only macro amounts of nitrogen and oxygen can be determined via the 15N(n,γ)16N and 18O(n,γ)19O reactions, respectively, whereas use of 14 MeV neutrons enables the detection of parts per million amounts of those two elements via the reactions 14N(n,2n)13N and 16O(n,p)16N, respectively. Similarly, fluorine, sodium, and silicon can be conveniently determined using fast neutron activation via the reactions 19F(n,2n)18F, 23Na(n,α)20F and 28Si(n,p)28Al, respectively. In the medium and heavy mass regions as well, in several specific cases, 14 MeV neutron activation analysis may be advantageous and more convenient than thermal neutron activation analysis. The determination of iron, niobium, and thallium via the reactions 56Fe (n,p)56Mn, 93Nb(n,2n)92Nb, and 203Tl(n,2n)202Tl, respectively, constitute some typical examples." @default.
- W2949969696 created "2019-06-27" @default.
- W2949969696 creator A5003689620 @default.
- W2949969696 date "2017-10-06" @default.
- W2949969696 modified "2023-09-26" @default.
- W2949969696 title "14 Mev Neutron Activation Cross-Sections" @default.
- W2949969696 cites W2014137462 @default.
- W2949969696 doi "https://doi.org/10.1201/9780203742433-48" @default.
- W2949969696 hasPublicationYear "2017" @default.
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