Development of internal-dosimetry code based on the ICRP 2007 recommendations; Overview of the code

Takahashi, Fumiaki  ; Manabe, Kentaro   ; Takubo, Kazuya*; Sato, Kaoru   

JAEA has developed an internal dosimetry code based on the ICRP 2007 recommendation in a four-year plan from FY 2017 to FY 2020 through a project commissioned by the Nuclear Regulation Authority. In this year, we heard comments on operability and functions for the prototype code developed up to last from experts of institutions with knowledge and experience in radiation monitoring. After that, the GUI screen for input was improved and a new output function was added by reflecting the result of hearing. In addition, the new dose evaluation models released as ICRP Publ.141 in 2020 were investigated and implemented in the code. The improved code was verified to calculate effective dose coefficient correctly for the newly added models. In this presentation, we report the overall of the code and its utilization.