EPJ Web of Conferences (Jan 2017)

(n, xn) cross sections on 56,57Fe

  • Negret Alexandru,
  • Borcea Catalin,
  • Dessagne Philippe,
  • Kerveno Maëlle,
  • Nankov Nikolay,
  • Olacel Adina,
  • Plompen Arjan,
  • Rouki Charoula,
  • Sin Mihaela,
  • Stanoiu Mihai

DOI
https://doi.org/10.1051/epjconf/201714611009
Journal volume & issue
Vol. 146
p. 11009

Abstract

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The Gamma Array for Inelastic Neutron Scattering (GAINS) operated at the Geel Linear Accelerator (GELINA) neutron source was used to measure (n ,xn) cross sections on 56,57Fe reaching a level of uncertainty of the order of 5%. Serious difficulties arise in case of the 57Fe isotope from the fact that the first excited level has an energy of only 14 keV and its decay could not be observed. Therefore a delicate combination of experimental and theoretical approaches have to be used to infer the inelastic cross section. The particularities of the two measurements are presented concentrating on the approaches allowing us to overcome specific problems in each case.