Huet C, Lemosquet A, Clairand I, Rioual J B, Franck D, de Carlan L, Aubineau-Lanièce I, Bottollier-Depois J F
Institute for Radiological Protection and Nuclear Safety (IRSN), Radiological Protection and Human Health Division, External Dosimetry Department, IRSN/DRPH/SDE, B.P. 17, 92262 Fontenay-aux-Roses Cedex, France.
Health Phys. 2009 Jan;96(1):76-83. doi: 10.1097/01.HP.0000327661.90794.0f.
Estimating the dose distribution in a victim's body is a relevant indicator in assessing biological damage from exposure in the event of a radiological accident caused by an external source. This dose distribution can be assessed by physical dosimetric reconstruction methods. Physical dosimetric reconstruction can be achieved using experimental or numerical techniques. This article presents the laboratory-developed SESAME--Simulation of External Source Accident with MEdical images--tool specific to dosimetric reconstruction of radiological accidents through numerical simulations which combine voxel geometry and the radiation-material interaction MCNP(X) Monte Carlo computer code. The experimental validation of the tool using a photon field and its application to a radiological accident in Chile in December 2005 are also described.
估算受害者体内的剂量分布是评估外部源引发的放射性事故暴露所致生物损伤的一个相关指标。这种剂量分布可通过物理剂量重建方法进行评估。物理剂量重建可利用实验或数值技术来实现。本文介绍了实验室开发的SESAME——利用医学图像模拟外部源事故——这一工具，它通过结合体素几何结构和辐射-物质相互作用MCNP(X)蒙特卡罗计算机代码的数值模拟，专门用于放射性事故的剂量重建。还描述了该工具利用光子场进行的实验验证及其在2005年12月智利一次放射性事故中的应用。
