skip to main content

SciTech ConnectSciTech Connect

Title: Nuclear Data Matters - The obvious case of a bad mixing ratio for 58Co

We present results of modeled cross sections for neutron- and proton-induced reactions leading to the final product nucleus 58Co. In each case the gamma-cascade branching ratios given in the ENSDF database circa 2014 predict modeled nuclear cross sections leading to the ground and first excited metastable state that are incompatible with measured cross sections found in the NNDC experimental cross section database EXFOR. We show that exploring the uncertainty in the mixing ratio used to calculate the gamma-cascade branching ratios for the 53.15 keV 2nd excited state leads to changes in the predicted partial cross sections by amounts that give good agreement with measured data.
Authors:
 [1] ;  [2] ;  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
OSTI Identifier:
1184173
Report Number(s):
LLNL-TR--670936
TRN: US1500305
DOE Contract Number:
AC52-07NA27344
Resource Type:
Technical Report
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COBALT 58; ISOMERIC NUCLEI; MIXING RATIO; CROSS SECTIONS; BRANCHING RATIO; NEUTRON REACTIONS; PROTON REACTIONS; GAMMA CASCADES; KEV RANGE 10-100; NUCLEAR MODELS; NUCLEAR DATA COLLECTIONS; GROUND STATES; DATA COVARIANCES