Monte Carlo-based Validation of the ENDF/MC²-II/SDX Cell Homogenization Path

Technical Report · Sun Apr 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6270284· OSTI ID:6270284

Wade, D. C. ^[1]

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1. Argonne National Lab. (ANL), Argonne, IL (United States)

The results are presented of a program of validation of the unit cell homogenization prescriptions and codes used for the analysis of Zero Power Reactor (ZPR) fast breeder reactor critical experiments. The ZPR drawer loading patterns comprise both plate type and pin-calandria type unit cells. A prescription is used to convert the three dimensional physical geometry of the drawer loadings into one dimensional calculational models. The ETOE-II/MC²-II/SDX code sequence is used to transform ENDF/B basic nuclear data into unit cell average broad group cross sections based on the 1D models. Cell average, broad group anisotropic diffusion coefficients are generated using the methods of Benoist or of Gelbard. The resulting broad (~10 to 30) group parameters are used in multigroup diffusion and S_n transport calculations of full core XY or RZ models which employ smeared atom densities to represent the contents of the unit cells.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Energy Research and Development Administration (ERDA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6270284
• Report Number(s): ANL-79-5
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS AND COMPUTING
COMPUTER CALCULATIONS
Cell Average
Diffusion Coefficient
EPITHERMAL REACTORS
EXPERIMENTAL REACTORS
FAST REACTORS
KINETICS
MATHEMATICAL MODELS
MONTE CARLO METHOD
Nuclear Criticality Safety Program (NCSP)
Pin-Calandria Cell
Plate Unit Cell
REACTOR KINETICS
REACTOR LATTICES
REACTORS
RESEARCH AND TEST REACTORS
Sn Transport
THREE-DIMENSIONAL CALCULATIONS
ZERO POWER REACTORS
ZPR-3 REACTOR
ZPR-6 REACTOR
ZPR-9 REACTOR
Zero Power Reactor