28th Symposium of AER on VVER Reactor Physics and Reactor Safety (2018, Olomouc, Czechia)
Reactor physics experiments and code validation (benchmarks)
Charles Wemple, Teodosi Simeonov (Studsvik Scandpower)
The release of the ENDF/B-VIIR1-based nuclear data library with version 2.02.00 of the HELIOS2 lattice physics code entailed an extensive verification program. Calculational mod- els were developed and compared to both select computational benchmarks and measured re- sults from critical benchmarks, to test the performance of the library and the transport solver enhancements. Preliminary results for relevant reactor physics parameters – core eigenvalue, relative pin power, reaction rates – will be presented for a variety of critical facility models, demonstrating the performance, flexibility, and power of the HELIOS2 code system.