COMPARISON OF THE HE-3-O-16 AND H-1-O-18 PROMPT NUCLEAR-REACTIONS FOR LATTICE LOCATION MEASUREMENTS OF OXYGEN IN NIOBIUM

Experimental data are presented for comparison of the determination of oxygen by the16O(3He, p)18F,16O(3He, α)15O and18O(p, α)15N prompt nuclear reactions, and of their use in the lattice location, by the ion-channelling technique, of oxygen atoms in single crystal targets of elements such as niobium, where oxygen contents of ≈0.1 atomic % or more can be obtained. Both reaction cross-sections and lattice-defect production rates are considered in the comparison. Details are given of an arrangement for automatic crystallographic angular scanning of nuclear reaction and backscattering yields in channelling/lattice location measurements. © 1979 Akadémiai Kiadó.