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Design Considerations of a Dual-Particle Imager for Non-Proliferation Applications

机译:用于防扩散应用的双颗粒成像仪的设计注意事项

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In this work, a design study of an imaging system capable of detecting both fast neutrons and photons is presented. The system consists of three planes: two planes of organic liquid scintillators and one plane of Nal scintillators. With the liquid scintillators pulse shape discrimination may be used to differentiate neutron and photon pulses whereas the Nal scintillators are highly insensitive to neutrons. Various design parameters have been investigated using the interaction tracking capabilities of the MCNPX-PoliMi code, such as detector sizes and detector spacing. The MCNPX-PoliMi code is a modification of the MCNPX code 2.6.0. The imaging system is being optimized for the accurate detection of SNM by using properly correlated sources available in MCNPX-PoliMi.
机译:在这项工作中,提出了一种能够同时检测快中子和光子的成像系统的设计研究。该系统由三个平面组成:两个平面的有机液体闪烁器和一个平面的Nal闪烁器。使用液体闪烁体时,可以使用脉冲形状判别来区分中子和光子脉冲,而Nal闪烁体对中子高度不敏感。使用MCNPX-PoliMi代码的交互跟踪功能已研究了各种设计参数,例如检测器尺寸和检测器间距。 MCNPX-PoliMi代码是MCNPX代码2.6.0的修改。通过使用MCNPX-PoliMi中可用的适当相关来源,对成像系统进行了优化,以准确检测SNM。

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