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目的探索用中子诱发γ射线谱线探测隐藏在行李中的化学毒剂。方法中子探测技术中包括定义一个平均的背景光谱、将背景光谱从所探测的信号谱中减去、然后用计算机程序对所得到的谱线进行分析并由计算机自动得出结论,该计算机软件能对所探测核素的单谱线和双谱线进行分析。结果我们所定义的平均背景光谱适合用于中子探测技术中所探测到核素的γ谱线进行元素分析。结论使用中子源对隐藏在行李中用磷粉模拟的沙林毒剂进行大约10 s左右的照射后就可以产生足够的γ射线计数,然后通过计算软件迅速分析就可以得出检测结论。
Objective To explore the use of neutron-induced γ-ray detection hidden in the luggage of chemical agents. Methods Neutron detection techniques include defining an average background spectrum, subtracting the background spectrum from the detected signal spectrum, then analyzing the resulting spectra using a computer program and automatically concluding by a computer that the software Single line and double line of the detected nuclide can be analyzed. Results The average background spectrum that we define is suitable for elemental analysis of gamma spectra of nuclides detected in neutron detection techniques. Conclusions The use of neutron sources to generate a sufficient gamma-ray count of about 10 s after the sarin poison hidden in baggage simulated with phosphor powder can produce sufficient gamma-ray counts, which can be followed by rapid analysis by computational software.