In this paper, simulations were carried out using Monte-Carlo N-Particle MCNP-4C code to determine the energy dependence of the response of a highly sensitive silver-activation detector used for fast-neutron detection after moderated to thermal neutrons. The detector consists of sandwiched alternating thin-sheets of silver and crystal scintillator Anthracene. The simulations also had considered different materials and designs to get the most efficient design for detecting signals from fast-neutrons interactions with the active materials (silver) and the scintillator. The energy and charge depositions of photons and electrons created by fast-neutron interactions with detector within the detection-cell were simulated for different scenarios. Owing on the simulations, a method to maximize the response by modifying the design was identified. The optimal configurations are suitable for a wide range of monitoring and detecting neutron sources especially for big detectors implemented for security purposes, where the costs and weighs can be reduced significantly.

在本文中，使用蒙特卡罗 N 粒子 MCNP-4C 代码进行了模拟，以确定用于快速中子检测的高灵敏度银活化探测器在慢化到热中子后响应的能量依赖性。探测器由夹在中间的交替薄片银和晶体闪烁体蒽组成。模拟还考虑了不同的材料和设计，以获得最有效的设计，以检测来自快中子与活性材料（银）和闪烁体相互作用的信号。针对不同场景模拟了由快速中子与检测单元内的检测器相互作用产生的光子和电子的能量和电荷沉积。由于模拟，确定了一种通过修改设计来最大化响应的方法。