Published 1991 | Version v1
Report Open

Measurement of the nitrogen total cross section from 0.5 eV to 50 MeV, and analysis of the 433-keV resonance

Creators

Description

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 14N at 433 keV. They found a spin of 3/2 (with ell = 1) and a peak cross section of 7.0 b. Analysis of the present data yield a spin of 7/2 (requiring ell ≥ 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

Availability note (English)

MF available from INIS under the Report Number; OSTI as DE91012222; NTIS; INIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
4 p.
Report number
CONF-910503--9

Conference

Title
International conference on nuclear data for science and technology.
Dates
13-17 May 1991.
Place
Juelich (Germany, F.R.).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22083052
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AIR; ENERGY DEPENDENCE; EXPERIMENTAL DATA; NEUTRON REACTIONS; NEUTRON TRANSPORT; NITROGEN 14 TARGET; NUCLEAR DATA COLLECTIONS; ORELA; R MATRIX; TOTAL CROSS SECTIONS
Descriptors DEC
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

Optional Information

Contract/Grant/Project number
Contract AC05-84OR21400
Funding organization
Department of Defense, Washington, DC (USA); USDOE, Washington, DC (USA).