Analysis of neutron scattering and gamma-ray production integral experiments on nitrogen for neutron energies from 1 to 15 MeV

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Nucl. Sci. Eng.; (United States)

OSTI ID:7300029

Cramer, S N; Oblow, E M

Monte Carlo transport calculations were made to analyze the results of two integral measurements of neutron scattering and gamma-ray production from liquid nitrogen samples. The experimental data from Intelcom Radiation Technology and Oak Ridge National Laboratory (ORNL) were given as angular-dependent NE-213 detector count rates of neutrons and gamma rays scattered from a spherical nitrogen Dewar pulsed with a 1- to 20-MeV neutron source. ORNL results also included unfolded neutron and gamma-ray spectra as a function of detector angle in broad incident neutron energy bins. Multigroup Monte Carlo calculations using the MORSE code and ENDF/B-IV nitrogen cross-section data were made to analyze all reported results. Comparisons of calculated and measured results indicate that no major deficiencies exist in the ENDF/B-IV gamma-ray production data, in contrast to the conclusions drawn from studies in previous years. Deficiencies, however, were found in the neutron data, primarily in the elastic and inelastic data above 9 MeV and in the elastic angular distribution data around 5 MeV.

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 7300029
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 62:3; ISSN NSENA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYON REACTIONS
CAPTURE
CROSS SECTIONS
CRYOGENIC FLUIDS
DISTRIBUTION
ELASTIC SCATTERING
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
GAMMA RADIATION
HADRON REACTIONS
IONIZING RADIATIONS
LIQUIDS
MONTE CARLO METHOD
NEUTRON REACTIONS
NEUTRON TRANSPORT THEORY
NITROGEN
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
RADIATIONS
SCATTERING
TRANSPORT THEORY