HELIOS2 Verification and Benchmark Testing

28th Symposium of AER on VVER Reactor Physics and Reactor Safety (2018, Olomouc, Czechia)
[2] 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.