Abstracts and Available Papers Presented at the
1995 International RERTR Meeting

APPLICATIONS AND RESULTS FOR THE SUPERCELL OPTION
OF THE WIMS-D4M CODE*

W. L. Woodruff
Argonne National Laboratory
Argonne, Illinois 60439-4841, USA

and

C. I. Costescu
University of Illinois
Urbana-Champaign, Illinois 61801-2984, USA

Presented at the1995 International Meeting on
Reduced Enrichment for Research and Test Reactors
September 18-21, 1995
Paris, France

*Work supported by the US Department of Energy
Office of Nonproliferation and National Security
under Contract No. W-31-109-38-ENG

ABSTRACT

The Supercell option of the WIMS-D4M code is used with a model for the Advanced Neutron Source design to illustrate the capability, and the results are compared with Monte Carlo. The capability is also used to successfully model Russian designed fuel assemblies with concentric tubes. The capability to model homogenized and resonance corrected fuel and to properly treat secondary regions containing resonance materials is particularly useful. The Supercell option is well suited to modeling non-lattice regions, such as, reflector, control and/or experimental regions of research reactors.

---

---