Multigroup computation of the temperature-dependent Resonance Scattering Model (RSM) and its implementation

Conference · Sun Jul 01 00:00:00 EDT 2012

OSTI ID:22105592

Ghrayeb, S. Z. ^[1]; Ouisloumen, M. ^[2]; Ougouag, A. M. ^[3]; Ivanov, K. N.

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1. Dept. of Mechanical and Nuclear Engineering, Pennsylvania State Univ., 230 Reber Building, Univ. Park, PA 16802 (United States)
2. Westinghouse Electric Company, 1000 Westinghouse Drive, Cranberry Township, PA 16066 (United States)
3. Idaho National Laboratory, MS-3860, PO Box 1625, Idaho Falls, ID 83415 (United States)

A multi-group formulation for the exact neutron elastic scattering kernel is developed. This formulation is intended for implementation into a lattice physics code. The correct accounting for the crystal lattice effects influences the estimated values for the probability of neutron absorption and scattering, which in turn affect the estimation of core reactivity and burnup characteristics. A computer program has been written to test the formulation for various nuclides. Results of the multi-group code have been verified against the correct analytic scattering kernel. In both cases neutrons were started at various energies and temperatures and the corresponding scattering kernels were tallied. (authors)

• Research Organization: American Nuclear Society, Inc., 555 N. Kensington Avenue, La Grange Park, Illinois 60526 (United States)
• OSTI ID: 22105592
• Resource Relation: Conference: PHYSOR 2012: Conference on Advances in Reactor Physics - Linking Research, Industry, and Education, Knoxville, TN (United States), 15-20 Apr 2012; Other Information: Country of input: France; 11 refs.
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
97 MATHEMATICAL METHODS AND COMPUTING
ABSORPTION
BURNUP
CALCULATION METHODS
COMPUTER CODES
CRYSTAL LATTICES
DOPPLER EFFECT
ELASTIC SCATTERING
IMPLEMENTATION
KERNELS
NEUTRONS
RESCATTERING
RESONANCE SCATTERING
TEMPERATURE DEPENDENCE