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Description
The $^{18}$O(d,α$_{0-3}$)$^{16}$N reactions were studied by measuring the differential cross sections over the deuteron beam energy range E$_{d,lab}$=1470–2160 keV, at backward detection angles of 120° to 170° with a 10° step. The target used was a thin Ta$_{2}$O$_{5}$ layer (areal density 326×10$^{15}$ at/cm$^{2}$), highly enriched in $^{18}$O, produced by controlled progressive anodization of tantalum foil. Layer’s total areal density, $^{18}$O enrichment, and carbon content were determined in situ through a combination of Nuclear Reaction Analysis (NRA) and Rutherford Backscattering Spectrometry (RBS), and were independently cross-checked. The measured differential cross sections range from 0.07 to 2.28 mb/sr, in close agreement with the only dataset available in the literature (Amsel, 1964 [1]) which spans from 824 to 2007 keV and refers to only one angle (165°). Differential cross sections for energies above E$_{d,lab}$ = 2007 keV and the full angular range 120°–170° are reported for the first time in this work. These new data are of direct relevance to ion beam analysis techniques and to applications in materials science, stable isotope tracing, and biological research.
[1] G.Amsel(1964), Jour. Annales de Physique (Paris), Vol.9, p.297