EPJ Web of Conferences (Jan 2018)

Neutron anisotropic evaporation and scission emission in fission

  • Stuttgé L.,
  • Chietera A.,
  • Gönnenwein F.,
  • Kopatch Yu.,
  • Mutterer M.,
  • Gagarski A.,
  • Guseva I.,
  • Chernysheva E.,
  • Hambsch F.-J.,
  • Hanappe F.,
  • Mezentseva Z.,
  • Telezhnikov S.

DOI
https://doi.org/10.1051/epjconf/201819303001
Journal volume & issue
Vol. 193
p. 03001

Abstract

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Experimental neutron distributions have been investigated in the spontaneous fission of 252Cf at IPHC in Strasbourg. The CORA experiment associating the CODIS twin ionisation chamber and the neutron multi-detector DEMON aimed to solve an long-standing problem in fission: the possible emission of scission neutrons and/or the presence of a dynamical anisotropy in the neutron evaporation by the moving fission fragments. A new method allowing to establish the dynamical anisotropy in an independent way is presented. The results obtained from a comparison with simulations based on GEANT4 are shown.