Development of calculation system for decontamination effect, CDE

Satoh, Daiki   ; Kojima, Kensuke; Oizumi, Akito   ; Matsuda, Norihiro  ; Kugo, Teruhiko ; Sakamoto, Yukio*; Endo, Akira   ; Okajima, Shigeaki  

A computer software, named CDE (Calculation system for Decontamination Effect), has been developed to support planning the decontamination. CDE calculates the dose rates before the decontamination by using a database of dose contributions by radioactive cesium. The decontamination factor is utilized in the prediction of the dose rates after the decontamination, and dose rate reduction factor is evaluated to express the decontamination effect. The results are visualized on the image of a target zone with color map. In this paper, the overview of the software and the dose calculation method are reported. The comparison with the calculation results by a three-dimensional radiation transport code PHITS is also presented. In addition, the source code of the dose calculation program and user's manual of CDE are attached as appendices.