Validation of integrated thermal power measurement using solution fuel STACY experimental data for modified STACY performance test

Araki, Shohei   ; Gunji, Satoshi  ; Arakaki, Yu; Murakami, Takahiko; Yoshikawa, Tomoki ; Hasegawa, Kenta; Tada, Yuta; Izawa, Kazuhiko ; Suyama, Kenya

To conduct integrated thermal power measurements for the performance test of the modified STACY, we re-analyzed the experimental data measured in the solution fuel STACY using the activation method. We validated its feasibility under the limited number of activation detectors. The re-analyzed results of the activation method by using MVP and PHITS with JENDL-4.0 indicated that the effect of the difference of the position between activation detectors was small enough, and the results agreed with that of the fission product analysis within almost 10%. It is conceivable that the activation method could be adopted instead of the fission product analysis.