Gamma-ray production measurements due to interactions of neutrons with elements required for nuclear power applications and design

Conference · Wed Oct 01 04:00:00 EDT 1975 · Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States)

OSTI ID:7285475

Chapman, G T; Dickens, J K; Love, T A; Morgan, G L; Newman, E

For the past three years neutron-induced gamma-ray production cross sections have been made for a variety of elements at the Oak Ridge Electron Linear Accelerator. A large, well shielded, NaI spectrometer was used as the gamma-ray detector and ORELA as the neutron source. The facility provides a consistent data set for neutron energies from 0.7 to 20 MeV and photon energies from 0.3 to 10.5 MeV. Typically the samples are flat plates of the element of approximately 0.02 atoms/barn thickness, although several elements studied required samples in compound form. The data are accumulated in a two-parameter array, gamma-ray pulse height versus neutron time-of-flight. Data reduction was accomplished by binning in desired neutron-energy groups and in fixed photon-energy groups. For each neutron-energy group the data were unfolded using FERD unfolding routine, and the results are in the form of absolute differential cross sections, d/sup 2/ sigma/d..omega..dE, for each photon-energy bin. So far data have been obtained for 20 elements (Li, C, N, O, F, Mg, Al, Si, Ca, Fe, Ni, Cu, Zn, Nb, Ag, Sn, Ta, W, Au, and Pb). 6 figures, 1 table (auth)

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 7285475
• Conference Information: Journal Name: Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) Journal Volume: 425
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM 27 TARGET
ALUMINIUM 28
ALUMINIUM ISOTOPES
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM
CAPTURE
CARBON
COPPER
CROSS SECTIONS
CRYOGENIC FLUIDS
DAYS LIVING RADIOISOTOPES
DIFFERENTIAL CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
FLUORINE
GAMMA RADIATION
GOLD 197 TARGET
GOLD 198
GOLD ISOTOPES
HADRON REACTIONS
HALOGENS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
IRON
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD
LIGHT NUCLEI
LITHIUM
MAGNESIUM
METALS
MINUTES LIVING RADIOISOTOPES
NEUTRON REACTIONS
NICKEL
NIOBIUM 96 TARGET
NIOBIUM 97
NIOBIUM ISOTOPES
NITROGEN
NONMETALS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXYGEN
RADIATIONS
RADIOISOTOPES
REFRACTORY METALS
SEMIMETALS
SILICON
SILVER
TANTALUM 181 TARGET
TANTALUM 182
TANTALUM ISOTOPES
TARGETS
TIN
TRANSITION ELEMENTS
TUNGSTEN
ZINC