Neodymium, samarium and europium capture cross-section adjustments based on EBR-II integral measurements

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5671564

Anderl, R. A.; Harker, Y. D.; Schmittroth, F.

Integral capture measurements were made for highly enriched isotopes of neodymium, samarium, and europium irradiated in a row 8 position of EBR-II with samples located both at mid-plane and in the axial reflector. Broad response, resonance, and threshold dosimeters were included to characterize the neutron spectra at the sample locations. The saturation reaction rates for the rare-earth samples were determined by post-irradiation mass-spectrometric analyses and for the dosimeter materials by the gamma-spectrometric method. The HEDL maximum-likelihood analysis code, FERRET, was used to make a least-squares adjustment of the ENDF/B-IV rare-earth cross sections based on the measured dosimeter and fission-product reaction rates. Preliminary results to date indicate a need for a significant upward adjustment of the capture cross sections for /sup 143/Nd, /sup 145/Nd, /sup 147/Sm, and /sup 148/Sm. 8 figures, 2 tables.

• Research Organization: Idaho National Engineering Lab., Idaho Falls (USA); Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: EY-76-C-07-1570
• OSTI ID: 5671564
• Report Number(s): CONF-791223-2
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600 -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
651725* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
CAPTURE
CROSS SECTIONS
DATA
DATA FORMS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
EUROPIUM ISOTOPES
EV RANGE
EV RANGE 100-1000
EVALUATED DATA
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FAST NEUTRONS
FERMIONS
GAMMA RADIATION
GRAPHS
HADRON REACTIONS
HADRONS
INFORMATION
INTEGRAL CROSS SECTIONS
INTERMEDIATE MASS NUCLEI
INTERMEDIATE NEUTRONS
IONIZING RADIATIONS
ISOLATED VALUES
ISOTOPES
KEV RANGE
KEV RANGE 01-10
KEV RANGE 10-100
KEV RANGE 100-1000
MEV RANGE
MEV RANGE 01-10
NEODYMIUM 143 TARGET
NEODYMIUM 144 TARGET
NEODYMIUM 145 TARGET
NEODYMIUM 146
NEODYMIUM ISOTOPES
NEUTRON REACTIONS
NEUTRONS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PILE NEUTRONS
RADIATIONS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SAMARIUM 147 TARGET
SAMARIUM 148 TARGET
SAMARIUM 149 TARGET
SAMARIUM 150 TARGET
SAMARIUM ISOTOPES
STABLE ISOTOPES
TARGETS
YIELDS