Nuclear model calculation for production of 18F, 22Na, 44,46Sc, 54Mn, 64Cu, 68Ga, 76Br and 90Y radionuclides used in medical applications

Theoretical predictions to produce medical 89Zr radionuclide via the 89Y(p, n)89Zr route at ≈ 5-60 MeV: Comparison of experimental and theoretical production data

Theoretical investigations were carried out for the production of the medically important 89Zr radionuclide. This radionuclide is produced in the interaction of a proton projectile with 89Y-target, a readily available target with greater purity at ≈ 5-60 MeV. The 89Y (p, n)89Zr production route, a promising avenue in the fields of medical imaging and radiopharmaceutical development, is of significant interest due to its potential to produce 89Zr, a radionuclide with a half-life of 78.41 h, suitable for various applications. The TALYS-1.95(G) predicted production cross-sections were in very good agreement with the experimental cross-sections. This successful alignment was further confirmed by a strong positive Pearson's correlation between the TALYS-1.95(G) predicted and experimentally measured production cross-sections for 89Zr radionuclide produced via the 89Y (p, n)89Zr route. Furthermore, the calculations of thick target yields have provided crucial information. It was confirmed that up to ≈38 MBq/μAh maximum production yield of 89Zr radionuclide, free from radio-isotopic impurities, can be achieved in the ≈5-13 MeV energy window. This information is not just essential, but it's profoundly enlightening for understanding the potential production capacity of the 89Y (p, n)89Zr route. It also guides us in planning practical supply options for medical applications using a small-sized cyclotron at proton-energies ≤13 MeV, enhancing our collective knowledge.

A study on empirical systematic for the (d,n) reaction cross sections at 8.6 MeV

Recently, many formalizations have been developed to explain some reaction mechanisms such as neutron or proton induced reactions. In this study, (d, n) reaction mechanism was investigated developing the cross-section systematic formula. The (d, n) cross sections at 8.6 MeV deuteron energy have been calculated using these formula for some target nuclei (A = 10∼123). The cross sections calculated are important for the development of fusion reactor technology. Obtained calculation results from the formula have been also compared and discussed with results calculated by the codes ALICE/ASH (equilibrium and pre-equilibrium theories) and TENDL-2012 (Talys-based), and with results of available experimental values. It is shown, that the suggested empirical equation at the 8.6 MeV deuteron energy works very well for a quick estimation of (d, n) nuclear cross sections.