A Design Basis Threat was developed which was based on the threat the facility was exposed to in terms of its assets including the radioactive source. The purpose of this was to serve as a tool providing a common basis for planning for physical protection system by the operator and approval of its physical protection plan by the competent authority for nuclear security. The DBT assessment methodology is an IAEA recommended method which is best to design the security measures for specific radioactive sources. This method has a correlation between risk and security systems. The higher the risk, the more capability will be required from the security systems to protect the sources.

中文翻译：

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南非马菲肯应用辐射科学与技术中心辐照设施的DBT。

设计基准威胁的开发是基于设施在其资产（包括放射源）方面所面临的威胁。这样做的目的是作为一种工具，为运营人规划实物保护系统以及由核保安主管当局批准其实物保护计划提供通用基础。DBT评估方法是国际原子能机构推荐的一种方法，最适合针对特定放射源设计安全措施。此方法在风险和安全系统之间具有关联。风险越高，安全系统将需要更多的能力来保护源。