-
F Tárkányi,
S Takács,
B Király,
F Szelecsényi, L Andó,
J Bergman,
S-J Heselius,
O Solin,
A Hermanne,
Yu N Shubin,
A V Ignatyuk
[show abstract]
[hide abstract]
ABSTRACT: Excitation functions were measured using the stacked foil irradiation technique from threshold energies to 28 MeV for (3)He- and to 21 MeV for alpha-particle induced nuclear reactions on natural antimony leading to the formation of (121,123,124)I radioisotopes. The measured excitation functions were compared with the contradicting results of the earlier investigations found in the literature and with the curves predicted by the ALICE-IPPE and EMPIRE-II codes. Integral yields were also calculated and compared with the experimental thick target yields reported in the literature.
Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine 03/2009; 67(6):1001-6. · 1.09 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: An improved method has been developed to obtain highly enriched [123Te] tellurium for the production of medically important123I. Excitation function of the123Te(p,n)123I reaction, production yields and radionuclidic impurity levels were determined as a function of bombarding energy and target thickness.
Journal of Radioanalytical and Nuclear Chemistry 04/1996; 213(2):135-142. · 1.52 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Proton induced nuclear reactions on enriched 111Cd and 112Cd have been studied up to 30 MeV in the context of routine production of the medically used isotope 111In with low and medium energy cyclotrons. The excitation functions of 111Cd(p,n)111m,gIn and 112Cd(p,2n)111m,gIn as production reactions and 111Cd(p,2n)110mIn, 111Cd(p,2n)110In, 111Cd(p,3n)109ml,m2,In, 112Cd(p,3n)110mIn, 112Cd(p,3n)110gIn as competing processes have been measured using the activation method involving the stacked-foil technique. The deduced thick target yields are compared with those obtained experimentally.
Applied Radiation and Isotopes 03/1994; 45(2):239-49. · 1.17 Impact Factor
-
Acta radiologica. Supplementum 02/1991; 376:73.
-
[show abstract]
[hide abstract]
ABSTRACT: In order to understand the thermal processes occurring within a water target we carried out calculations of heat transfer of the beam energy absorbed from the target water to the target back wall, and compared them with the temperatures measured during irradiations. It was shown, by both the experimental results and the heat transfer calculations, that, at high beam currents, static small volume water targets have a working temperature at the boiling point of the target water. The heat transfer occurs only by movement of the water molecules generated by the boiling target water and not by heat conduction or free convection alone. There is no heat transfer arising from vaporization and reflux.
International Journal of Radiation Applications and Instrumentation Part A Applied Radiation and Isotopes 02/1990; 41(8):753-6.
-
[show abstract]
[hide abstract]
ABSTRACT: Excitation functions of the natTa(α, xn) 184m,184g,183,182m,182mg,181Re nuclear reactions have been investigated with stacked foil method up to 30 MeV to obtain reliable cross-section data for different applications. The earlier experimental data were compiled, critically evaluated and compared with the recent results to obtain recommended data.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.
-
[show abstract]
[hide abstract]
ABSTRACT: Excitation Russian Federation functions of 3He-induced nuclear reactions producing 43,44m,46,47,48Sc, 48V, 48,49,51Cr were measured up to 36 MeV bombarding energy by using the stacked-foil technique on different medium-energy accelerators. The results were compared with the data (cross-section, thick-target yield, activity-distribution functions, …) from the literature, model calculations and other measurements. Earlier measurements at higher energies up to 135 MeV are also plotted to complete the database for 3He-reactions on natural Ti. The new experimental and literature data were compared with the predictions of different model calculations for the 48V producing reactions. The selected experimental data sets were fitted using different methods to obtain recommended values. The measurements and compilation proved, that the 3He induced reactions on natural titanium, especially those leading to 48V and 48Cr are especially useful for monitoring, for activation analysis and for Thin Layer Activation (TLA) purposes. Production of 48V as a radiotracer is also recommended.
Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms 168(3):337-346. · 1.21 Impact Factor
-
F. Tárkányi,
S. Takács,
B. Király,
F. Szelecsényi, L. Andó,
J. Bergman,
S.-J. Heselius,
O. Solin,
A. Hermanne,
Yu.N. Shubin,
A.V. Ignatyuk
[show abstract]
[hide abstract]
ABSTRACT: Excitation functions were measured using the stacked foil irradiation technique from threshold energies to 28 MeV for 3He- and to 21 MeV for α-particle induced nuclear reactions on natural antimony leading to the formation of 121,123,124I radioisotopes. The measured excitation functions were compared with the contradicting results of the earlier investigations found in the literature and with the curves predicted by the ALICE-IPPE and EMPIRE-II codes. Integral yields were also calculated and compared with the experimental thick target yields reported in the literature.
Applied Radiation and Isotopes.
