Covariance Matrix of a Double-Differential Doppler-broadened Elastic Scattering Cross Section

Conference · Tue May 01 00:00:00 EDT 2012

DOI:https://doi.org/10.1051/epjconf/20122700006· OSTI ID:1041427

Arbanas, Goran  ^[1]; Becker, B. ^[2]; Dagan, R ^[3]; Dunn, Michael E.  ^[1]; Larson, Nancy M. ^[1]; Leal, Luiz ^[1]; Williams, Mark L.  ^[1]

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1. ORNL
2. Rensselaer Polytechnic Institute (RPI)
3. Institut fur Neutronenphysik und Reaktortechnik

Legendre moments of a double-differential Doppler-broadened elastic neutron scattering cross section on {sup 238}U are computed near the 6.67 eV resonance at temperature T = 10{sup 3} K up to angular order 14. A covariance matrix of these Legendre moments is computed as a functional of the covariance matrix of the elastic scattering cross section. A variance of double-differential Doppler-broadened elastic scattering cross section is computed from the covariance of Legendre moments.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1041427
• Resource Relation: Journal Volume: 27; Conference: 2nd Workshop on Neutron Cross Section Covariances - Vienna, , Austria - 9/14/2011 12:00:00 AM-9/16/2011 12:00:00 AM
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
ELASTIC SCATTERING
FUNCTIONALS
NEUTRONS
RESONANCE
SCATTERING
Covariance matrix
Doppler-broadening
Legendre moments
Double-Differential
elastic scattering
low energy
resonance
up-scattering
down-scattering