HERESY3; two-dimensional heterogeneous reactor calculation. [IBM360; FORTRAN IV and BAL]
Technical Report
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OSTI ID:6489058
HERESY3 solves the two-dimensional, few-group, static reactor eigenvalue problem using the heterogeneous (source-sink or Feinburg-Galanin) formalism. The solution yields the reactor k-effective and absorption reaction rates for each rod normalized to the most absorptive rod in the thermal level. Epithermal fissions are allowed at each resonance level, and lattice-averaged values of thermal utilization, resonance escape probability, thermal and resonance eta values, and the fast fission factor are calculated. Kernels in the calculation are based on age-diffusion theory. Both finite reactor lattices and infinitely repeating reactor supercells may be calculated. Rod parameters may be calculated by several internal options, and a direct interface is provided to a HAMMER system (NESC Abstract 277) lattice library tape to obtain cell parameters. Criticality searches are provided on thermal utilization, thermal eta, and axial leakage buckling.IBM360; FORTRAN IV and BAL; OS/360; 45K single-precision words of high speed core plus 50K single-precision words of disk (or drum) storage.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- OSTI ID:
- 6489058
- Report Number(s):
- ANL/NESC-136; ON: DE83048136
- Country of Publication:
- United States
- Language:
- English
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