Improvement of dose rate measurement method and calculation analysis for MOX containing Americium

Okada, Toyofumi; Horii, Yuta ; Tsubota, Yoichi   ; Komeno, Akira ; Kikuno, Hiroshi

In this research, purpose is getting gamma dose rate from MOX and PuO containing Americium and evaluating exposure dose by calculation code. One of reasons of difference between measurement value and calculation value is scattering ray from inside of globe box panel because MOX is handled inside of globe box. Therefore, we improve measuring method (changing MOX position, applying shadow shield method) and get new data which difference between measurement value and calculation value (using ANISN) is smaller than before. Furthermore, we confirm that it can be available to apply PHITS for evaluating exposure dose.