Proton-induced cross-sections of nuclear reactions on lead up to 37MeV

Abstract

Excitation function of proton induced nuclear reactions on lead for production of 206,205,204,203,202,201g Bi, 203cum,202m,201cum Pb and 202cum,201cum,200cum,199cum Tl radionuclides were measured up to 36 MeV by using activation method, stacked foil irradiation technique and ?-ray spectrometry. The new experimental data were compared with the few earlier experimental results and with the predictions of the EMPIRE 3.1, ALICE-IPPE (MENDL2p) and TALYS (TENDL-2012) theoretical reaction codes.

The study of alpha particle induced reactions on bismuth-209 isotopes using computer code COMPLET

“…The EXFOR format was further developed to cover chargedparticle induced and photo-nuclear reaction data in addition to neutron-induced reaction data. The format is flexible in order to record all the necessary information to explain the measured data, but it also defines computer readable coded information [17,18]. It is used for the benefits of researchers, scholars and nuclear users in all countries.…”

“…This code is capable of calculating equilibrium and pre-equilibrium reaction cross-sections. This computer code system is used for the analysis and prediction of nuclear reactions and helped us to determine both the compound and pre compound excitation functions [17]. This code has been instrumental in producing numerous nuclear data evaluations.…”

“…The nuclear level density parameters which are very essential quantity, influence the shape and the height of the calculated excitation functions [10]. The default value for the level density parameter and exciton number is taken to be taken as (8, 9 ,10) and (4, 5 and 6) respectively [17,22].…”

“…Figure 2 and table 2 show the excitation functions for the 209 Bi (α, 2n) 211 At nuclear reaction. [17,24].…”

“…All the reaction mechanisms (A, B and C) show quadratic behavior with a maxima alpha energy of 39 MeV. For alpha particle energies higher than 45.2 MeV, the pre-compound nucleus reaction mechanism is dominating [17,18].…”