Elsevier

Nuclear Physics A

Volume 110, Issue 1, 15 March 1968, Pages 11-16
Nuclear Physics A

Energy spectra of alpha particles from the 122Te(n, α)119Sn, 159Tb(n, α)15 Eu and 169Tm(n, α)166Ho reactions with 14.2 MeV neutrons

https://doi.org/10.1016/0375-9474(68)90679-9Get rights and content

Abstract

The energy spectra of alpha particles from the 122Te(n, α)119Sn, 159Tb(n, α)156Eu and 169Tm(n, α)166Ho reactions at 14.2 MeV have been studied using the semiconductor detector technique. The analysis of the energy spectra leads to results that the evaporation theory is inadequate to describe the investigated reactions. The shapes of the experimental spectra suggest the presence of strong direct effects.

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    Therefore, it is necessary to make further measurements to resolve some of the discrepancies and to cover a slightly broader range of energies for the cross sections of the 162Dy(n,p)162Tb and 163Dy(n,p)163Tb reactions. Concerning the cross sections of 158Dy(n,p)158Tb, 156Dy(n,α)153Gd, 160Dy(n,p)160Tb, 162Dy(n,α)159Gd, 164Dy(n,α)161Gd, 156Dy(n,2n)155Dy and 158Dy(n,2n)157Dy reactions of the dysprosium isotopes in neutron energies 13.5–14.8 MeV have been reported by several authors (Bari, 1982; Coleman et al., 1959; Dzysiuk et al., 2012; Jaskola et al., 1968; Khurana and Govil, 1965; Khurana and Hans, 1959,1960; Kong et al., 1998; Luo et al., 2009; Qaim, 1974,1976; Sakane et al., 1996; Weigel et al., 1975; Wille and Fink, 1960;). In this work, the cross-sections for the 162Dy(n,p)162Tb and 163Dy(n,p)163Tb reactions were measured using 13.5 and 14.8 MeV neutrons, (n,p) reactions were measured through the photons produced during activation that were measured with a high resolution gamma-ray spectrometer.

  • Nuclear data sheets for A = 156

    1976, Nuclear Data Sheets
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    1971, Nuclear Physics, Section A
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