Gamma-ray production cross sections of neutron-induced reactions in oxygen

Journal Article · Sat Apr 01 04:00:00 EST 1978 · Nucl. Sci. Eng.; (United States)

OSTI ID:5086399

Nordborg, C ^[1]; Nilsson, L; Conde, H; Stroemberg, L G

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1. Tandem Accelerator Lab., Uppsala

The gamma-ray production cross section of oxygen has been measured at incident neutron energies between 7 and 10.5 MeV. The production of the 6.13-, 6.92-, and 7.12-MeV gamma rays by the (n,n'..gamma..) reaction in /sup 16/O and the 3.09-, 3.68-, and 3.85-MeV gamma rays by the (n,..cap alpha gamma..) reaction has been studied. In addition, the production cross section of the 4.44-MeV gamma ray from inelastic neutron scattering on carbon has been measured at one neutron energy, since many earlier measurements of gamma-ray production cross sections have been performed relative to this cross section. Monoenergetic neutrons were produced by the /sup 2/H(d,n)/sup 3/He and /sup 3/H(p,n)/sup 3/He reactions. The gamma radiation was detected by a large NaI(Tl) scintillator using time-of-flight techniques. The neutron flux was measured by means of a proton-recoil telescope using the n-p scattering cross section. The differential gamma-ray production cross sections were measured at 90/sup 0/. In addition, the angular distribution for the 6.13-MeV gamma ray was determined at one neutron energy. The results for oxygen, which show pronounced structure of the cross section for the 6.13-MeV gamma ray over the whole energy region, are in disagreement with current data files, whereas the results for carbon are in agreement with a number of recent investigations of the /sup 12/C(n,n'..gamma..)/sup 12/C and /sup 12/C(n,n')/sup 12/C reactions.

• OSTI ID: 5086399
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 66:1; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
CARBON
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
EVEN-EVEN NUCLEI
FERMIONS
GAMMA RADIATION
HADRON REACTIONS
HADRONS
INELASTIC SCATTERING
IONIZING RADIATIONS
ISOTOPES
LIGHT NUCLEI
NEUTRON REACTIONS
NEUTRONS
NONMETALS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
OXYGEN 16
OXYGEN 16 TARGET
OXYGEN ISOTOPES
RADIATIONS
SCATTERING
STABLE ISOTOPES
TARGETS