На пучке ускоренных протонов циклотрона У-150М Института ядерной физики измерены дважды–дифференциальные сечения реакций (р,хр) на ядре 103 Rh при энергии Ер = 30 МэВ. В качестве мишеней использовалась самоподдерживающаяся фольгатолщиной 3 мкм с содержанием изотопа 103 Rh ∼ 98%. Для идентификации продуктов реакции использовался двухдетекторный телескоп, состоящий из пролетного тонкого кремниевого детектора толщиной 100 мкм и детектора полного поглощения (сцинтиллятор CsI(Tl))толщиной 2.5 см. Из дважды–дифференциальных сечений получены интегральные спектры с последующим определением полных парциальных сечений реакций (p,хp). Полученные экспериментальные результаты проанализированы в рамках модифицированной версии экситонной модели предравновесного распада в рамках расчетного кода PRECO-2006. Установлено, что сечения реакций 103 Rh(p,хp) при энергии протонов 30 МэВ преимущественно формируются механизмом предравновесного распада.

Double-differential protons and alpha-particles emission cross sections were measured for proton-induced reactions on Rh-103 nucleus at the incident energy of 22 MeV. The experiment was performed at the isochronous cyclotron of the Institute of Nuclear Physics (Kazakhstan). After integrating the double-differential cross sections over the angle, the integral cross sections of Rh-103(p, xp) and (p, x alpha) reactions were obtained and compared with the TENDL-2019 evaluation. In general, the calculated spectra were in good agreement with the measured ones.

The aim of this work was to measure the cross section of nuclear reactions natCu(p,xp) on the isochronous cyclotron U-150M of the Institute of nuclear physics at the energy Ep=7 MeV. The analysis of the experimental results of these reactions on the natCu is carried out in accordance with the exciton model of nuclear decay, which is a statistical approach describing the transition of the excited core to an equilibrium state. The theoretical analysis of the experimental results was performed in the framework of the PRECO-2006 calculation code. The obtained experimental results can be used in the design of hybrid nuclear power plants, as well as in radiation materials science.

Double-differential and integral cross sections of the (p, xp) and (p, x alpha) reactions on the Rh-103 nucleus were measured at E-p = 30 MeV using a proton beam delivered by the U-150M cyclotron of the Institute of Nuclear Physics (Almaty, Kazakhstan). A self-sustaining Rh-103 foil of 3 mu m thickness was used as a target. The obtained experimental results were compared with the TENDL-2019 nuclear data library, which provides the output of the TALYS nuclear model code. We assert that the TENDL-2019 evaluations provide a valid description of the obtained experimental data.

Institute of Nuclear Physics, Ibragimov 1, 050032 Almaty, Kazakhstan al-Farabi Kazakh National University, al-Farabi 71, 050040 Almaty, Kazakhstan Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia National Nanotechnology Laboratory of Open Type al-Farabi 71, 050040 Almaty, Kazakhstan Gumilev Eurasian National University Satpayev 2, 010008 Nur-Sultan, Republic of Kazakhstan Nazarbayev University, Kabanbay batyr 53, 010000 Nur-Sultan, Kazakhstan Akdeniz University, Department of Physics Dumlupınar blvd, 07058 Campus Antalya, Turkey