Cross sections of proton-induced reactions on 152Gd, 155Gd and 159Tb with emphasis on the production of selected Tb radionuclides

Cross sections are presented for various Dy, Tb and Gd radionuclides produced in the proton bombardment of 159Tb as well as for the reactions 152Gd(p,4n)149Tb and 155Gd(p,4n)152Tb up to 66 MeV. The experimental excitation functions are compared with theoretical predictions by means of the geometrydependent hybrid (GDH) model as implemented in the code ALICE/ASH, as well as with values from the TENDL-2012 library and previous literature experimental data, where available. Physical yields have been derived for the production of some of the medically important radioterbiums, namely 149Tb (radionuclide therapy), 152Tb (PET) and 155Tb (SPECT). The indirect production of high-purity 155Tb via the decay of its precursor 155Dy is reported. The possibility of a large-scale production facility based on a commercial 70 MeV cyclotron is also discussed

Excitation functions of 3He-particle-induced nuclear reactions on 103Rh: Experimental and theoretical investigations

Excitation functions for the 3He-induced reactions on 103Rh as alternative pathway for the production of the medically used 103Pd were studied by the stacked foil technique. Excitation functions of the 103Rh(3α, x) 103Pd, 103,104,104m,105Ag and 100,101,101m,102,102mRh reactions were determined up to 27 MeV by detecting only the characteristic γ-rays obtained from the decay of residual nuclei. The experimental results were compared with the theoretical ones obtained from the EMPIRE-3.2 code and ‎the TENDL nuclear data library. From the measured cross-section data integral production yields were calculated

Application of Au + p nuclear reactions for proton beam monitoring up to 70 MeV

Experimentally measured excitation functions are presented for the 197Au(p,n)197mHg, 197Au(p,pn)196Au, 197Au(p,3n)195mHg, 197Au(p,p3n)194Au and 197Au(p,5n)193mHg nuclear reactions up to 70 MeV. The new data are compared with published values, where available. Based on cubic spline fits through the data of the most reliable experimental data sets, recommended excitation function curves are suggested for the above nuclear processes

Production cross sections of radioisotopes from 3He-particle induced nuclear reactions on natural titanium

Excitation functions were measured using the stacked-foil method for the natTi(3He,x)44mSc, 46m+gSc, 47Sc, 48Sc, 48V and 48Cr nuclear processes up to 68 MeV. Our new cross-section data were compared with the earlier reported values as well as the evaluated theoretical predictions by means of the TALYS 1.6 code as compiled in the TENDL-2015 library. The new data show acceptable agreement with the previous experimental values in the overlapping energy regions, however only a partial agreement was found in the case of the results of the nuclear reaction model code. The present work not only strengthens the experimental datasets of the above processes but also provides new cross-section values above 36 MeV where only one dataset is available for each reaction

Production of 139Ce by proton-induced reactions on 141Pr and natLa

Excitation functions and production rates are presented for various Ce radionuclides formed in the bombardment of Pr-141 and La-nat with protons. Measurements were performed for Pr-141 + p up to 100 MeV and for La-nat + p up to 20 MeV. The possibility is investigated to utilize tandem targetry for the production of no-carrier-added Ce-139 of high radionuclidic purity, having a Pr target in the higher energy slot followed by a La target in a lower energy slot. The results of this work are also compared with previous literature experimental data, where available, as well as with predictions by means of the geometry-dependent hybrid (GDH) model as implemented in the code ALICE-IPPE. (c) 2007 Elsevier B.V. All rights reserved