The results could guide to delimit the alerting region and evacuation region, and also could help to determine the emergency-rescue plan and tactics during nuclear accidents.

• 该结果在核事故的应急救援过程中，对救援人员划定警戒区和确定周围居民的疏散范围具有重要意义，并可为制定救援方案和应急决策提供科学依据。