以ALARA原则对放射性废物处理设施的替代设计选择进行比较的方法,基于概率方法与贝叶斯推理
1Biology and Environmental Chemistry Division, Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1 Iwado-Kita, Komae, Tokyo 201-8511, Japan.
优化放射性废物处理设施包括评估剂量减少设计. 使用贝叶斯推理的概率方法表明,95百分位剂量低于0.1mSv/y的设计符合ALARA原则.
科学领域:
- 核工程 核工程是指核工程.
- 辐射保护 辐射保护
- 环境科学 环境科学
背景情况:
- 长期的放射性废物管理需要优化处置设施的设计.
- 辐射保护的目的是将辐射剂量降低到合理可实现的最低水平 (ALARA).
研究的目的:
- 引入一种概率方法来评估替代性处置设施设计之间的剂量分配.
- 根据ALARA原则,评估设计方案以尽量减少辐射剂量.
主要方法:
- 使用贝叶斯推理进行概率剂量分布评估.
- 进行假设的处置系统设计的参数计算.
主要成果:
- 具有95百分点剂量分布低于0.1mSv/y的设计有效地减少额外的剂量.
- 减少剂量分配中的不确定性对于实际的剂量减少至关重要.
结论:
- 概率方法有效地评估了适合ALARA的剂量分布.
- 选择具有较低剂量百分位数的处置设施设计是辐射保护的关键.
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