Neutron Cross section Covariances in the Resonance region: 50,53Cr, 54,57Fe and 60Ni

Oblozinsky, P. ; Cho,Y.-S. ; Mattoon,C.M. ; Mughabghab,S.F.

关键词: APPROXIMATIONS;    CHROMIUM 50;    CHROMIUM 53;    CROSS SECTIONS;    DATA COVARIANCES;    ELASTIC SCATTERING;    IRON 54;    IRON 57;    KERNELS;    NICKEL 60;    NUCLEAR DATA COLLECTIONS;    NEUTRON REACTIONS;    RESONANCE national nuclear data ce;   

DOI  :  10.2172/1013522
RP-ID  :  BNL--94458-2010
PID  :  OSTI ID: 1013522
Others  :  R&D Project: EST-003-NEFA
Others  :  Other: KB0301041
Others  :  TRN: US1102678

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

We evaluated covariances in the neutron resonance region for capture and elastic scattering cross sections on minor structural materials, {sup 50,53}Cr, {sup 54,57}Fe and {sup 60}Ni. Use was made of the recently developed covariance formalism based on kernel approximation along with data in the Atlas of Neutron Resonances. Our results of most interest for advanced fuel cycle applications, elastic scattering cross section uncertainties at energies around 100 keV, are on the level of about 7-10%.