Excitation functions for the production of90Nb and88Y by irradiation of zirconium with deuterons

Abstract

The compound-statistical model plus Hittmair's stripping theory accounts quite well for the (d, 2n) cross sections observed. However, the agreement obtained with Peaslee-Otozai's theory is excellent and the set of parameters used more reasonable. It has been assumed that the stripping mechanism can have no contribution to the (d, e) reaction. Accordingly, calculations for this reaction have been done using the compound-statistical model and the entire absorption process followed by the evaporation of an c~ particle. No good agreement is obtained with either theory.

The activation of W and Zr by deuterons at energies up to 20 MeV

“…The deuteron activation cross sections were studied previously in [17][18][19][20]. We obtained preliminary data for 10 excitation functions that are in agreement with previous authors.…”

Cross section data for the production of the positron emitting niobium isotope 90Nb via the 90Zr(p, n)-reaction

“…In fact even a small-sized cyclotron (E p ≤ 16 MeV) should lead to sufficient quantities of the radioisotope via the ( p, n)-reaction. A few studies have shown that the (d, 2n)-reaction requires a deuteron energy of about 16 MeV [5][6][7], the ( 3 He, 2n)-process a 3 Heenergy of ≥ 30 MeV and the (α, 3n)-reaction an α-particle energy of ≥ 45 MeV [8]. Furthermore, the systematics of ( 3 He, 2n)-and ( p, n)-reactions suggest that the production yield of 90 Nb should be higher in the latter process.…”