Measurement of the nitrogen total cross section from 0. 5 eV to 50 MeV, and analysis of the 433-keV resonance

Conference · Tue Jan 01 00:00:00 EST 1991

DOI:https://doi.org/10.1007/978-3-642-58113-7_208· OSTI ID:5753457

Harvey, J A; Hill, N W; Larson, N M; Larson, D C

High-resolution neutron transmission measurements have been made on several thicknesses of nitrogen gas samples from 0.5 eV to 50 MeV at the Oak Ridge Electron Linear Accelerator (ORELA). A preliminary R-matrix analysis has been done for resonances up to 800 keV. An R-matrix analysis of previous data was done by LANL and ENDF/B-VI, including the lowest energy resonance in {sup 14}N at 433 keV. They found a spin of 3/2 (with {ell} {equals} 1) and a peak cross section of 7.0 b. Analysis of the present data yield a spin of 7/2 (requiring {ell} {ge} 2) and a peak cross section of 11.5 b for this resonance. These results are important for transport calculations of neutrons through air. Scattering measurements are planned to determine the parity of this resonance. 6 refs., 2 figs.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOD; USDOE; Department of Defense, Washington, DC (USA); USDOE, Washington, DC (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5753457
• Report Number(s): CONF-910503-9; ON: DE91012222
• Resource Relation: Conference: International conference on nuclear data for science and technology, Juelich (Germany, F.R.), 13-17 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AIR
NEUTRON TRANSPORT
NITROGEN 14 TARGET
NEUTRON REACTIONS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
NUCLEAR DATA COLLECTIONS
ORELA
R MATRIX
TOTAL CROSS SECTIONS
ACCELERATORS
BARYON REACTIONS
CROSS SECTIONS
DATA
FLUIDS
GASES
HADRON REACTIONS
INFORMATION
LINEAR ACCELERATORS
MATRICES
NEUTRAL-PARTICLE TRANSPORT
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
RADIATION TRANSPORT
TARGETS
651320* - Nuclear Properties & Reactions
A=6-19
Experimental
654003 - Radiation & Shielding Physics- Neutron Interactions with Matter