Energy dependence of the /sup 238/U thermal capture cross section. [25 to 450/sup 0/C]
Integral activation measurements supported the thermal neutron energy dependence of /sup 238/U assumed in the ENDF/B-IV evaluation. The activation measurements were conducted in a thermally insulated graphite block at the side of the SP Reactor. The block was thermally heated to temperatures up to 450/sup 0/C. In addition to heating, gasolinium filters were used to tailor the neutron spectra incident on the foils. The metallic foils consisted of copper and depleted uranium. Copper served as the 1/v reference. Activation ratios of /sup 238/U to /sup 63/Cu in the tailored spectrum were compared with corresponding ratios in a well thermalized flux at room temperature. The difference in this ratio is strongly dependent on the energy dependence of the /sup 238/U cross section. 8 figures, 1 table.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- AC09-76SR00009
- OSTI ID:
- 5316096
- Report Number(s):
- DP-MS-79-106; CONF-800607-34; TRN: 80-010164
- Resource Relation:
- Conference: American Nuclear Society annual meeting, Las Vegas, NV, USA, 8 Jun 1980
- Country of Publication:
- United States
- Language:
- English
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NEUTRON REACTIONS
CAPTURE
URANIUM 238 TARGET
CROSS SECTIONS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
GAMMA RADIATION
HIGH TEMPERATURE
ISOLATED VALUES
MEDIUM TEMPERATURE
TEMPERATURE DEPENDENCE
THERMAL NEUTRONS
URANIUM 239
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DATA
DATA FORMS
ELECTROMAGNETIC RADIATION
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EVEN-ODD NUCLEI
FERMIONS
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
INFORMATION
IONIZING RADIATIONS
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
RADIATIONS
RADIOISOTOPES
TARGETS
URANIUM ISOTOPES
652025* - Nuclear Properties & Reactions
A=220 & above
Experimental- Nuclear Reactions & Scattering- (-1987)