1 Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6171, USA
2 Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, NES Bldg. 1-9, 3021 Tibbits Ave., Troy, NY 12180, USA
3 Institut für Neutronenphysik und Reaktortechnik, Forschungszentrum Karlsruhe Gmbh, Postfach 3640, 76021 Karlsruhe, Germany
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Legendre moments of a double-differential Doppler-broadened elastic neutron scattering cross section on 238U are computed near the 6.67 eV resonance at temperature T = 103 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.
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