Abstract：
In this paper, we present a voxel-based phantom of Medaka fish that can be used to assess the internal radiation doses that would be absorbed by different organs of this fish species if exposed to radioactive wastewater released into the ocean. The geometric model for fish was generated based on available Wavefront Object files for smooth-bodied Medaka fish organs, whereas due to the lack of Medaka fish material specification, the material model was constructed using material data appropriate to ICRP 110 adult male voxel-based phantom. Absorbed Fractions (AFs) and Specific Absorbed Fractions (SAFs) were calculated for eight organs of major interest as sources and for each organ as target at a set of discrete photon, electron, alpha and neutron energies. To validate the present model the calculated AFs in the studied organs were compared to ones obtained in similar organs in a voxel-based phantom of another teleost fish species called Limanda limanda. The results presented are consistent with the reference dosimetric data. We concluded that the Medaka model can be used in radioecology research to improve marine radiation protection.
摘要：
在本文中,我们提出了一种基于体素的Medaka鱼幻影，该幻影可用于评估如果暴露于释放到海洋中的放射性废水中，该鱼类的不同器官将吸收的内部辐射剂量。鱼的几何模型是基于光滑的Medaka鱼器官的可用WavefrontObject文件生成的，而由于缺乏Medaka鱼的材料规格，材料模型是使用适合于ICRP110成年男性体素体模的材料数据构建的.以一组离散光子为目标，计算了八个主要感兴趣的器官的吸收分数（AF）和特定吸收分数（SAF）。电子,α和中子能量。为了验证本模型，将所研究器官中计算出的AF与另一种称为Limandalimandalimanda的硬骨鱼的基于体素的体模中相似器官中获得的AF进行了比较。给出的结果与参考剂量学数据一致。我们得出结论，Medaka模型可用于放射生态学研究，以改善海洋辐射防护。
