Implementing and testing theoretical fission fragment yields in a Hauser-Feshbach statistical decay framework

Jaffke, Patrick; Moller, Peter; Stetcu, Ionel; Talou, Patrick; Schmitt, Christelle

doi:10.1051/epjconf/201816900006

Title: Implementing and testing theoretical fission fragment yields in a Hauser-Feshbach statistical decay framework

Journal Article · Tue Mar 06 00:00:00 EST 2018 · EPJ Web of Conferences

DOI:https://doi.org/10.1051/epjconf/201816900006· OSTI ID:1463549

^[1];

^[1]; Talou, Patrick ^[1]; Schmitt, Christelle ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Grand Accelerateur National d’Ions Lourds, CEA/DSM-CNRS/IN2P3, Caen (France); Institut Pluridisciplinaire Hubert Curien, Strasbourg (France)

Here, we implement fission fragment yields, calculated using Brownian shape-motion on a macroscopic-microscopic potential energy surface in six dimensions, into the Hauser-Feshbach statistical decay code CGMF. This combination allows us to test the impact of utilizing theoretically-calculated fission fragment yields on the subsequent prompt neutron and γ-ray emission. We draw connections between the fragment yields and the total kinetic energy TKE of the fission fragments and demonstrate that the use of calculated yields can introduce a difference in the $$\langle$$TKE$$\rangle$$ and, thus, the prompt neutron multiplicity v, as compared with experimental fragment yields. We deduce the uncertainty on the $$\langle$$TKE$$\rangle$$ and v from this procedure and identify possible applications.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1463549

Report Number(s):: LA-UR-17-27821; TRN: US1902314

Journal Information:: EPJ Web of Conferences, Vol. 169; ISSN 2100-014X

Publisher:: EDP SciencesCopyright Statement

Country of Publication:: United States

Language:: English

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