Abstract
Activation cross-sections for the 27 Al(d,x)24 Na nuclear reaction was measured by using a stacked-foil activation technique combined with high purity germanium (HPGe) γ-ray spectrometry over deuteron energy range of 2–24 MeV. Measured data were critically compared with the available literature data and also with the theoretical data extracted from the TENDL data base. Accuracy of the 27 Al(d,x)24 Na cross-sections were confirmed by the simultaneous measurements of the nat Ti(d,x)48 V monitor reaction cross-sections. Present results reproduced well the IAEA recommended nat Ti(d,x)48 V reaction cross-sections, but provide slight deviation with the IAEA recommended 27 Al(d,x)24 Na cross-sections. It may be concluded that the use of 27 Al(d,x)24 Na in deuteron beam monitoring should not be a perfect choice if one has the option to use the nat Ti(d,x)48 V reaction.
Highlights
A typical stack was prepared by placing the titanium and aluminium foils in between any two samarium foils in a regular fashion so that the full beam energy is absorbed within the stacked foil
The production crosssections of 24Na radionuclide is presented in Table 2 while the excitation function is plotted in Fig. 2 together with the earlier reported experimental data obtained from the EXFOR library [11] and the evaluated data taken from the TENDL-2015 library [12]
Activation cross-sections of the 27Al(d,x)24Na reaction were measured in the energy range of 3–24 MeV using a stacked-foil activation technique with an overall uncertainty of better than 7%
Summary
The natTi(d,x)48V (Ed = 23.88 MeV, σ = 217.54 mb) [1] monitor reaction recommended by the IAEA was used to determine the final beam current. The beam intensity was determined from the activity of the Ti foil placed at the front position of the stack, and considered as a constant to deduce the cross-sections for each foil in the stack.
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