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适用于大型核反应堆的应急计划区划分方法不能完全适用于小型核反应堆。应急计划区的划分需充分考虑公众可能受到的预期剂量和可防止剂量,将所得到的剂量数据与规定的干预水平相比较,确定应急计划区范围。以烟羽应急计划区范围外的预期剂量不超过10 m Sv为例,利用MACCS软件计算在指定应急计划区范围的限制条件下,对释放源项水平的要求,详细说明应急计划区的划分及计算过程。
Emergency planning zoning methods applicable to large nuclear reactors can not be fully applied to small nuclear reactors. Emergency planning area division should take full account of the public may be expected dose and dose can be prevented, the dose data obtained with the level of intervention compared to determine the scope of emergency planning area. Taking the expected dose outside the emergency plan area of smoke plume not exceeding 10 m Sv as an example, the MACCS software is used to calculate the requirements for releasing the source items within the limits of the designated emergency plan area, and the division of emergency plan areas and calculation process.