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核材料循环过程中的超铀元素毒性较大,人体摄入后会通过内照射的形式对人体产生危害,该方面的内照射监测与防护是辐射安全重要内容之一。超铀元素的测量是内照射活体测量中最有难度的技术之一。现有的内照射活体测量系统大多非常笨重、庞大,一般建在专门的实验室,甚至是地下的铅室,屏蔽厚重,以降低本底辐射水平。这对于开展相关研究或者在大型的固定核设施中进行内照射活体测量无疑是有利的。但在有突发污染事件的情况下,不便于内污染的及时发现。因此,
The toxicity of transuranic elements in the process of nuclear material circulation is great, which will cause harm to the human body through the internal radiation after being ingested by the human body. Monitoring and protection of internal radiation in this aspect is an important part of radiation safety. Measurement of transuranic elements is one of the most difficult techniques in in vivo measurement of in-vivo exposure. Most existing in vivo live measurement systems are very bulky and bulky, and are generally built in specialized laboratories or even underground lead chambers with thick shielding to reduce the level of background radiation. This is undoubtedly beneficial for carrying out relevant studies or performing internal beam in vivo measurements in large fixed nuclear facilities. However, in the event of a sudden pollution incident, it is not convenient to discover the pollution within a timely manner. therefore,