France-Japan collaboration on severe accident studies in sodium-cooled fast reactors, 5; IGR programs interpretation and the SIMMER code validation

Kato, Shinya  ; Imaizumi, Yuya ; Matsuba, Kenichi  ; Kamiyama, Kenji  ; Yamano, Hidemasa   ; Kubo, Shigenobu ; Dufour, E.*; Trotignon, L.*; Payot, F.*

JAEA and CEA are going on the collaboration study to validate the SIMMER code since 2020. In this framework, JAEA and CEA are performing mutually the SIMMER calculations based on the joint interpretation on in-pile tests of the EAGLE program conducted in the IGR research reactor in Kazakhstan. The comparison between the calculation results and the experimental results for the model validation of the SIMMER code are conducted. In this presentation, the progress and the achievement of the SIMMER validations under this collaborative study are shown.