Abstract
The cross-sections of deuteron-induced nuclear reactions suitable for ion beam analysis, measured in different laboratories, are often significantly different. In the present work, differential cross-sections of 27Al(d,p) and 27Al(d,α) reactions were measured, and the cross sections benchmarked with thick target spectra obtained from pure aluminium for the first time in two independent laboratories. The 27Al(d,p) and (d,α) differential cross-sections were measured between 1.4 and 2 MeV at scattering angles of 165°, 150°, and 135° in the VDGT laboratory in Tehran (Iran), and the same measurements for detector angle of 150° were repeated from scratch, including target making, with independent equipment on the SAFIR platform at INSP in Paris (France). The results of these two measurements at 150° are in good agreement, and for the first time a fitted function is proposed to describe the Al-cross sections for which no suitable theoretical expression exists. The obtained differential cross-sections were validated through benchmarking, by fitting with SIMNRA deuteron-induced particle spectra obtained from a high purity bulk Al target at both labs for deuteron incident energies between 1.6 and 2 MeV. The thick target spectra are well-reproduced. The evaluated and benchmarked cross sections have been uploaded to the ion beam analysis nuclear data library database (www-nds.iaea.org/ibandl/).
Highlights
The cross-sections of deuteron-induced nuclear reactions suitable for ion beam analysis, measured in different laboratories, are often significantly different
The results show that the data acquired at Institut des NanoSciences de Paris (INSP) Lab in Paris for 27Al(d,α0,1,2,3,4)25Mg and 27Al(d,p0+1,2+3,4,5+6)28Al are in acceptable agreement with data obtained at Van De Graaff Lab in Tehran (VDGT) Lab at 150° scattering angle
The 27Al(d,p0+1,2+3,4,5+6)28Al and 27Al(d, α0,1,2,3,4)25Mg reaction cross sections were measured at VGDT (Tehran) on thin self-supporting aluminium targets for incident deuteron energies in the range 1.4–2 MeV at 135°, 150°, and 165° laboratory scattering angles
Summary
The cross-sections of deuteron-induced nuclear reactions suitable for ion beam analysis, measured in different laboratories, are often significantly different. The 27Al(d,p) and (d,α) differential cross-sections were measured between 1.4 and 2 MeV at scattering angles of 165°, 150°, and 135° in the VDGT laboratory in Tehran (Iran), and the same measurements for detector angle of 150° were repeated from scratch, including target making, with independent equipment on the SAFIR platform at INSP in Paris (France) The results of these two measurements at 150° are in good agreement, and for the first time a fitted function is proposed to describe the Al-cross sections for which no suitable theoretical expression exists. Knowledge of the cross-sections for the cases of isolated peaks is already useful for designing experiments to determine elemental contents of thin films Many such cross-sections, for example 16O(d,p0)17O, 16O(d,p1)17O, 12C(d,p0), 14N(d,α0), have been carefully measured at energy and angular ranges of analytical interest[1,2,3,4]. The second most abundant element is silicon, and it is an intermediate-mass element from the point of view of IBA, it has nuclear reactions of analytical interest that have been determined[2,13]
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