The emission of secondary protons from reaction (p,xp) at an energy of 30 MeV in the nucleus of 103 Rh

Abstract

The emission of secondary protons from reaction (p,xp) at an energy of 30 MeV in the nucleus of 103 Rh Abstract: On the beam of accelerated protons of the U-150M cyclotron of the Institute of Nuclear Physics, doubledifferential reaction cross sections (p, xp) were measured on a 103 Rh nucleus at an energy E p =30 MeV. A self-sustaining foil with a thickness of 3 µm with an isotope content of 103 Rh ∼ 98% was used as targets. To identify the reaction products, a two-detector telescope was used, consisting of a transient thin silicon detector with a thickness of 100 µm and a total absorption detector (CsI (Tl) scintillator) 2.5 cm thick. The integral spectra were obtained from the double-differential cross sections with the subsequent determination of the total partial cross sections for the reactions (p, xp). The experimental results obtained were analyzed in the framework of a modified version of the exciton model of pre-equilibrium decay within the PRECO-2006 calculation code. It has been established that the cross sections for the reactions 103 Rh (p, xp) at a proton energy of 30 MeV are predominantly formed by the mechanism of pre-equilibrium decay.