Nuclear Reactions Induced by Alpha Particles on Natural Ytterbium

Abstract

Ytterbium / Alpha particles induced reactions / Gamma spectroscopy / Stacked-foil technique / Cumulative cross sections / Preequilibrium effects AbstractThe Cumulative Cross Sections for the production of different nuclei using natural ytterbium as target and 84.32 MeV alpha particles as projectiles, were determined using the stacked foil technique in combination with gamma ray spectroscopy. The data are compared with theoretical predictions provided by an equilibrium and pre-equilibrium reaction model.

Excitation functions of alpha-induced nuclear reactions on natural erbium and natural ytterbium targets

“…The cross section axis is in logarithmic scale because the values vary over orders of magnitudes. Results of Romo et al [13] are higher than ours in the overlapping energy range. However, we have to notice that as Romo used only one stack and the incident energy of the beam was 84 MeV, the uncertainty of the alpha energy at the end of the stack was large.…”

Activation cross sections of alpha-induced reactions on natural ytterbium up to 50 MeV

“…The result shown in Fig. 2 is compared with the previous studies [2,12] and the TENDL-2017 data [14]. The previous data are consistent with our result, however the TENDL-2017 data underestimate all experimental data.…”

“…The results are shown in Fig. 4 and compared with the previous studies [12,13] and the TENDL-2017 data [14]. Both previous data and the TENDL-2017 data are in good agreement with our data.…”

“…2-11. The results are compared with the previous studies [2,12,13] and the results of theoretical calculation taken from the TENDL-2017 data [14].…”

Some nuclear chemical aspects of medical generator nuclide production at the Los Alamos hot cell facility

“…It has been proposed as a label for biomedical studies [54]. 172 Hf has been produced by α-particle bombardment of nat Yb foil [55] and proton-induced spallation in targets of Ta [56,57], Au, Pt and Th [58]. 194 Au, which is formed by the decay of 194 Hg, decays by ε mode with a small overall β + emission branching ratio of 2.9% [59].…”