A new study of the 10B(p,\(\alpha_{1}\gamma\))7Be reaction from 0.35 to 1.8 MeV

  • A. CaciolliEmail author
  • R. Depalo
  • V. Rigato
Regular Article - Experimental Physics


The quantification of isotopes content in materials is extremely important in many research and industrial fields. Accurate determination of boron concentration is very critical in semiconductor, superconductor and steel industry, in environmental and medical applications as well as in nuclear and astrophysics research. The detection of B isotopes and of their ratio in synthetic and natural materials may be accomplished by gamma spectroscopy using the 10B(p,\( \alpha_{1}\gamma\))7Be and 11B(p,\(\gamma\))12C reactions at low proton energy. Here, the 10B(p,\( \alpha_{1}\gamma\))7Be cross section is reported in the center of mass energy range 0.35 to 1.8 MeV. The \( E_{\gamma} = 429\) keV \(\gamma\) rays were detected at \( 45^{\circ}\) and \( 90^{\circ}\) using a NaI(Tl) and an HPGe detectors, respectively. In the presented energy range, previous cross section data revealed discrepancies and normalisation issues. Existing data are compared to the new absolute measurement and discussed. The present data have been subtracted from a previous measurement of the total cross section to derive the contribution of the \( \alpha_{0}\) channel.


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© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Università degli Studi di Padova, Dipartimento di Fisica e AstronomiaPadovaItaly
  2. 2.INFN Sezione di PadovaPadovaItaly
  3. 3.INFN Laboratori Nazionali di LegnaroLegnaro, PadovaItaly

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