Browsing by Author "Tel, E."

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Interaction of High-Energy Proton Beam With a Thin Target and Multiplicities of Neutron
(2007) Demirkol, I.; Arasoǧlu, A.; Tel, E.; Tatar, M.; Şafak, M.S.
An important ingredient in the performance of accelerator driven systems for energy production, waste transmutation and other applications are the number of spallation neutrons produced per incident proton. The neutron multiplicities, angular and energy distributions are usually calculated using simulation codes. We have presented multiplicities of the neutrons emitted in the interaction of a high-energy proton (1500 MeV) with a thin target Pb, Bi. In this study we have used the code ISABEL to calculate multiplicities of the neutron emitted. The results obtained have been compared with the available data. © 2007 American Institute of Physics.
Investigation of Some Structural Fusion Materials for (N, 2n) Reactions Up To 40 Mev
(Springer, 2010) Arasoglu, A.; Tel, E.
The knowledge of (n, 2n) cross section is very important and necessary in the reactor technology since a significant portion of the fission neutron spectrum lies above the threshold of (n, 2n) reaction for the most of the reactor materials. The (n, 2n) cross section is neutron multiplier reaction in fusion reactor design. Therefore, (n, 2n) reactions of the selected blanket materials can play a key role for multiplying neutrons in reactor environment. In this study, for some structural fusion materials (n, 2n) reactions such as (27)Al(n, 2n)(26)Al, (51)V(n, 2n)(50)V, (52)Cr(n, 2n)(51)Cr, (55)Mn(n, 2n)(54)Mn, (56)Fe(n, 2n)(55)Fe and (58)Ni (n, 2n)(57)Ni have been carried out up to 40 MeV incident neutron energy. In these calculations, the pre-equilibrium and equilibrium effects have been investigated. Also in the present work, the (n, 2n) reaction cross-sections have calculated by using evaluated empirical formulas developed by Tel et al. at 14-15 MeV energy. The calculated results are discussed and compared with the experimental data taken from EXFOR database.
Triton Emission Spectra in Some Target Nuclei Irradiated by Ultra-Fast Neutrons
(Springer, 2010) Tel, E.; Kaplan, A.; Aydin, A.; Buyukuslu, H.; Demirkol, I.; Arasoglu, A.
High-current proton accelerator technologies make use of spallation neutrons produced in (p,xn) and (n,xn) nuclear reactions on high-Z targets. The produced neutrons are moderated by heavy water. These moderated neutrons are subsequently captured on (3)He to produce tritium via the (n,p) reaction. Tritium self-sufficiency must be maintained for a commercial power plant. So, working out the systematics of (n,t) reaction cross sections and triton emission differential data are important for the given reaction taking place on various nuclei at different energies. In this study, triton emission spectra by using ultra-fast neutrons (incident neutron energy > 50 MeV), the (n,xt) reactions for some target nuclei as (16)O, (27)Al, (56)Fe, (59)Co, (208)Pb and (209)Bi have been investigated. In the calculations, the pre-equilibrium and equilibrium effects have been used. The calculated results have been compared with the experimental data taken from the literature.