Abstract

In the event of a criticality accident, not only the maximal doses received by the victims must be determined but it is also crucial to evaluate the doses to the different organs. With a neutron component, morphology is a key parameter in the organ dose calculation. As the simulation tools can be time consuming to proceed, especially if morphology is taken into account, for all the victims, it may be very useful to have a database of conversion coefficients that allow to obtain the organ doses from the dose measured in the dosemeter for different kinds of morphology. In this paper, we present a study performed to evaluate such conversion coefficients using voxelized anthropomorphic phantoms. These coefficients take into account two crucial parameters having an impact on the dose at the organs: the orientation of the victim in the radiation field and the morphology, that is to say the body mass index of the different victims.

中文翻译：

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临界事故剂量的体素化模型的转换系数的计算

摘要

在发生严重事故时，不仅必须确定受害者所接受的最大剂量，而且评估对不同器官的剂量也至关重要。对于中子成分，形态是器官剂量计算中的关键参数。由于仿真工具的执行过程可能很耗时，尤其是考虑到形态时，因此对于所有受害者而言，拥有一个转换系数数据库以从剂量计中测量的剂量中获取器官剂量可能非常有用。针对不同的形态 在本文中，我们提出了一项使用体素化拟人化体模来评估此类转换系数的研究。这些系数考虑了影响器官剂量的两个关键参数：