Calculation of productions of medical 201Pb, 198Au, 186Re, 111Ag, 103Pd, 90Y, 89Sr, 77Kr, 77As, 67Cu, 64Cu, 47Sc and 32P nuclei used in cancer therapy via phenomenological and microscopic level density models

Determination of excitation function for alpha induced reactions on 237Np and 238Pu

The excitation function of the alpha particle-induced reactions on 237Np and 238Pu has been determined for the incident alpha energies ranging from threshold to 50 MeV using TALYS1.95 nuclear reaction code. In this study, the excitation function of (α,xn) reactions on 237Np and 238Pu has been determined by invoking the Jeukenne-Lejeune-Mahaux-Bruyeres Optical model potential. The microscopic nuclear level density from Hilaire's combinatorial table is used to calculate the nuclear level density. Also, the excitation function has been evaluated by using the alpha potential of Watanabe folding approach with Koning-Delaroche spherical optical model potential and McFadden-Satchler potential. Furthermore, all the calculated cross-sections have been compared with the experimental results taken from EXFOR and the available evaluated cross-sections from TENDL2019 nuclear data library. The calculated cross sections using Jeukenne-Lejeune-Mahaux-Bruyeres Optical model potential together with microscopic nuclear level density from Hilaire's combinatorial table incorporating the Skyrme-Hartree-Fock-Bogoliubov calculation results in good correspondence with the experimental values from EXFOR.

Production of energetic 232U, 236,238Pu, 242Cm, 248Bk, 250,252Cf and 252Es radioisotopes for use as nuclear battery in thin targets via particle accelerators

Energetic ²³²U, ^236,238Pu, ²⁴²Cm, ²⁴⁸Bk, ^250,252Cf and ²⁵²Es nuclei used in nuclear batteries were produced by using particle accelerators for proton, deuteron, triton, helium-3 and alpha-induced reaction processes on thin targets. The energy range used was E_particle = 100 → 1 MeV, including specific conditions such as irradiation time of 24 h with constant beam current of 1 μA. The impressive results were obtained in terms of charged-induced reaction processes, based on simulated activity and yield of product curves. In addition, the significance of these results was discussed for each reaction process so as to determine the appropriate reaction process in detail and add nuclear data to the literature. Also, obtaining these radioisotopes has loud economic cost and restrictions of target materials. Therefore, target materials in production processes were carried out in thin targets to provide convenience to experimenters.

An investigation of the effects of level density models and alpha optical model potentials on the cross-section calculations for the production of the radionuclides 62Cu, 67Ga, 86Y and 89Zr via some alpha induced reactions

Theoretical studies via nuclear reaction models have an undeniable importance and impact in terms of better understanding of reaction processes and their nature. In this study, by considering the importance of these models and the medical radionuclides, the effects of six level density models and eight alpha optical model potentials on the cross-section calculations for the production of the radionuclides 62Cu, 67Ga, 86Y and 89Zr via 59Co(α,n)62Cu, 60Ni(α,np)62Cu, 65Cu(α,2n)67Ga, 64Zn(α,p)67Ga, 85Rb(α,3n)86Y, 86Sr(α,n)89Zr, 87Sr(α,2n)89Zr and 88Sr(α,3n)89Zr reactions were investigated. Calculations for each reaction route were performed by using the TALYS v1.9 code. The most consistent model with the literature data taken from the Experimental Nuclear Reaction Database (EXFOR), was identified by using the reduced chi-squared statistics in addition to an eyeball estimation. Also, the effects of combinational use of selected models and potentials were investigated by comparing the calculational results with the experimental data.

Investigations of proton and deuteron induced nuclear reactions on natural and enriched Titanium, Calcium and Vanadium targets, with special reference to the production of 47Sc

⁴⁷Sc could be used in SPECT imaging and also suitable for targeted therapy of small tumors. The excitation functions for the production of ⁴⁷Sc and accompanying impurities via proton and deuteron bombardment of Calcium, Titanium and Vanadium targets were evaluated by three nuclear codes, ALICE, TALYS and EMPIRE. Therefrom, integral yields of ⁴⁷Sc and also ^46gSc as a main impurity were calculated. The various production routes of ⁴⁷Sc were compared together. The results consistency with available experimental data was checked for each reaction. Based on the results, the ⁴⁶Ca(d,n)⁴⁷Sc reaction can leads to the high purity ⁴⁷Sc with the moderate yield.