基于ICRP生物动力学模型的贫铀辐射危险估计算法

Algorithm of Radiological Risk Estimation for Exposures to Depleted Uranium Based on ICRP Biokinetic Models

针对线性年龄相关剂量学程序PLEIADES(Program for Linear Age-dependent Dosimetry)计算贫铀辐射危险存在的影响因素较多、系数不确定性大、使用不便的问题,基于ICRP生物动力学模型,采用美国原子管理委员会编制的放射性物质工具箱中提供的典型条件下铀的各同位素剂量转换系数,分析了不同背景下剂量的影响因素,给出了贫铀的辐射危险概率的简化计算方法,并同PLEIADES的结果相比较。分析表明两者结果吻合较好,该方法原理简单,使用方便,适合于对贫铀辐射危险的估算。

Considering many influencing factors and the indetermination of coefficients, it＇s inconvenient to calculate the radiological risk of DU （depleted uranium） with PLEIADES （ Program for Linear Age - dependent Dosimetry）. Based on ICRP biokinetic models, an algorithm was presented, adopting dose coefficients of ICRP 68 in The Radiation Toolbox developed for the U.S. Nuclear Regulatory Commission and analyzing the influencing factors in different backgrounds. Compared with PLEIADES, the analysis indicates that the results tally each other, and this method is brief, convenient, and fit for the radiological risk estimation of DU.