EXCITATION-FUNCTIONS OF REACTIONS OF DEUT ERONS, HE-3 IONS AND ALPHA-PARTICLES INTERACTION AT ENERGIES OF 100 MEV WITH SI NUCLEI

Nuclear reaction excitation functions producing radioactive and stable isotopes at interaction of deuterons, He-3 ions and alpha-particles w ith silicon within the energy range to 100 MeV have been investigated experimentally and theoretically. Excitation functions have been measu red for long-living nuclides Na-22, Na-24, Mg-28. Excitation functions have been calculated for isotopes from S to Na in assumption of the m echanism promoting formation of a compound nucleus (ALICE LIVERMORE co de). It is shown that the model applied predicts the basic character o f excitation functions thoung cross-sections derived for some reaction s are sufficiently lower than the measured ones, which is probably, a result of other mechanism effects. Transmutation coefficients for chem ical elements of Si deuterons, He-3 ions and alpha-particles irradiati on are calculated.