A model to determine the dose rate of a planar alpha-emitting surface has been developed. The approach presented is a computationally efficient mathematical model using stopping range data from the Stopping Ranges of Ions in Matter (SRIM) software. The alpha dose rates as a function of distance from irradiated UO₂ spent fuel surfaces were produced for benchmarking with previous modelling attempts. This method is able to replicate a Monte Carlo (MCNPX) study of an irradiated UO₂ fuel surface within 0.6% of the resulting total dose rate and displays a similar dose profile.

中文翻译：

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描述UO ₂表面α剂量率的数学模型

已经开发出确定平面α发射表面的剂量率的模型。提出的方法是一种计算有效的数学模型，使用的是“物质中的离子停止范围”（SRIM）软件中的停止范围数据。产生了α剂量率，该剂量率是与辐照过的UO ₂乏燃料表面的距离的函数，用于通过先前的建模尝试进行基准测试。该方法能够在所得总剂量率的0.6％内复制对辐照过的UO ₂燃料表面的蒙特卡洛（MCNPX）研究，并显示出相似的剂量分布。