A robust safety case for a fusion power plant for electricity generation must demonstrate that the radiological risk to workers and the public under any credible accident scenario is as low as reasonably practicable (ALARP). Whilst the hazard potential of a fusion power plant is significantly less than that of a fission power plant, a fusion power plant will still contain radiological inventories. From the work done in previous fusion safety studies and the current work being undertaken for the ITER project, it has been established that there are certain accident scenarios in which a part of these radiological inventories can be released into the atmosphere, potentially posing a risk to workers and members of the public. The actual radiological risk to an exposed person depends on a multitude of factors including type of inventory released, quantity released, height of release, weather conditions and age of person exposed, amongst others. The aim of this paper is to assess the radiological dose received by an exposed population under a variety of conditions, to put these releases into context by comparing them with sheltering and evacuation emergency reference levels (ERLs) and to discuss the impact of siting a fusion power plant near local populations.

核聚变电站发电的可靠安全案例必须证明，在任何可信的事故情况下，对工人和公众的放射风险应在合理可行的范围内尽可能低（ALARP）。尽管聚变电厂的危险隐患明显低于裂变电厂，但聚变电厂仍将包含放射清单。从先前的聚变安全性研究中完成的工作以及为ITER项目进行的当前工作，已经确定，在某些事故场景下，这些放射清单的一部分可以释放到大气中，可能对工人和公众。对暴露人员的实际放射风险取决于多种因素，包括释放的库存类型，释放的数量，释放的高度，天气条件和受照者的年龄等。本文的目的是评估暴露人群在各种条件下所接受的放射剂量，通过将其与掩蔽和疏散应急参考水平（ERL）进行比较，将这些释放放到上下文中，并讨论安置融合点的影响发电厂靠近当地居民。