Study of pre-equilibrium emission of light complex particles from Fe and Bi induced by intermediate energy neutrons
2011 (English)In: International Nuclear Physics Conference 2010: Nuclear Reactions, 2011, 082013- p.Conference paper (Refereed)
We have measured double differential cross sections (DDX) for emission of hydrogen- and helium-isotopes in the interaction of 175 MeV quasi-monoenergetic neutrons with Fe and Bi using the Medley setup at the The Svedberg Laboratory (Uppsala, Sweden). We compared experimental DDX with calculations with the TALYS code, which includes exciton model and Kalbach systematics; the code fails to reproduce the emission of complex light-ions, generally overestimating it. We propose an correction for the application of the Kalbach phenomenological model in the TALYS code by introducing a new energy dependence for the nucleon transfer mechanism in the pre-equilibrium emission region. Our results suggest also evidence for multiple pre-equilibrium emission of composite particles at 175 MeV.
Place, publisher, year, edition, pages
2011. 082013- p.
, Journal of Physics: Conference Series, ISSN 1742-6588 ; 312
IdentifiersURN: urn:nbn:se:uu:diva-150629DOI: 10.1088/1742-6596/312/8/082013ISI: 000299413400013OAI: oai:DiVA.org:uu-150629DiVA: diva2:408039
International Nuclear Physics Conference (INPC) JUL 04-09, 2010 Vancouver, CANADA