摘要
采用γ射线探测器阵列和序贯概率比检验法建立了人员出入口核材料放射性监测装置 ,以检测通过出入口的人员是否以隐蔽方式非法携带核材料或其它放射性物质。
A pedestrian portal monitor for special nuclear material (SNM) and its software are developed. Its performances are as follows:detection sensitivities are 1.03 g and 0.031 8 g respectively for high enrichment uranium and low burned plutonium; false alarm probability is 1/5 500 . The portal monitor for SNM is used to prevent unauthorized removal of fissile materials such as 235 U and 239 Pu in protected area. The monitor uses a personal computer to provide automatic operation . The sequential probability ratio test(SPRT) algorithm is used to determine the presence of SNM over background.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2000年第5期445-447,共3页
Atomic Energy Science and Technology
