Re-measurement of the neutron-induced gamma-ray production cross sections for iron in the energy range 850 keV less than or equal to E/sub n/ less than or equal to 20. 0 MeV. [Tables]
Values of the gamma-ray production cross sections for neutron interactions with iron as reported by previous investigators have differed by as much as a factor of 1.5 or more at neutron energies greater than about 5 MeV. Because of this discrepancy, the measurements were repeated at ORNL using the ORELA as a pulsed source of neutrons with energies between 850 keV and 20 MeV. The data were obtained using a NaI(Tl) gamma-ray spectrometer oriented at an angle of 125/sup 0/ to the incident neutron beam. The sample was positioned in the beam at a distance of 47.35 meters from the neutron source. The resulting data, presented as differential cross sections (d/sup 2/sigma/d..cap omega..dE) for gamma rays between 0.7 and 10.5 MeV, show good agreement with some previously published data, but are significantly different from previous ORNL measurements for neutron energies greater than 5 MeV.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 7264975
- Report Number(s):
- ORNL/TM-5416; TRN: 08-019766
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
IRON
NEUTRON REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
GAMMA RADIATION
KEV RANGE 100-1000
MEV RANGE 01-10
MEV RANGE 10-100
PARTICLE PRODUCTION
PHOTONS
TABLES
BARYON REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
HADRON REACTIONS
INFORMATION
INTERACTIONS
IONIZING RADIATIONS
KEV RANGE
MASSLESS PARTICLES
METALS
MEV RANGE
NUCLEAR REACTIONS
NUCLEON REACTIONS
PARTICLE INTERACTIONS
RADIATIONS
TRANSITION ELEMENTS
651525* - Nuclear Properties & Reactions
A=39-58
Experimental- Nuclear Reactions & Scattering- (-1987)