COMMENT OF RESULTS OF BENCHMARK BASED ON #3958 ISTC PIE SOLVED BY WIMS CODE
23rd Symposium of AER on VVER Reactor Physics and Reactor Safety (2013, Štrbské Pleso, Slovakia)
Spent fuel storage and disposal
The WIMS9a 4 (and WIMS10a (beta4) 5) reactor-physics computer programs
were used to simulate the burn-up of UO2 fuel in a VVER-440 reactor.
The manner in which WIMS9 (and WIMS10) were used in these simulations is
Predictions of concentrations for actinides up to Cm244 and for selected fission
products were compared with laboratory-measured values.
Reasonable agreement between calculated and measured values was seen for some
isotopes, but also differences were observed for the others. Also, agreement is very poor for
some isotopes in selected samples.
Differences between calculated values by WIMS9 and WIMS10 (with different
library) and WIMS10 – 2D standard model vs. WIMS10 3D model are also shown.