双高能CT航空集装箱核材料识别方法模拟分析  

Analysis of Nuclear Material Identification Method for Dual High Energy CT Aviation Container Simulation

作　　者：房远洋 FANG Yuanyang(School of Mechanical and Electronic Engineering,East China University of Technology,Jiangxi 330013,China.)

机构地区：[1]东华理工大学机械与电子工程学院,江西330013

出　　处：《电子技术(上海)》2025年第1期164-165,共2页Electronic Technology

摘　　要：阐述采用双高能X射线基材料分解法分解航空集装箱中的核材料。利用美国国家标准与技术研究院(NIST)提供的不同材料的线性衰减系数,选择不同基材料在不同双能组合条件下,计算铀、钚和钍材料原子序数的相对偏差。选择相对偏差最小时的基材料及双能组合,并利用MC模拟方法和CT(计算机断层扫描)技术识别模型中的核材料,模拟结果表明该方法能够有效识别核材料。This paper expounds the use of dual high-energy X-ray based material decomposition method to decompose nuclear materials in aviation containers.Using the linear decay coefficients of different materials provided by the National Institute of Standards and Technology(NIST)in the United States,it selects different base materials under different dual energy combinations to calculate the relative deviation of atomic numbers of uranium,plutonium,and thorium materials.It selects the base material and dual energy combination with the smallest relative deviation,and use MC simulation method and computed tomography(CT)related technology to identify the nuclear material in the model.The simulation results can identify the nuclear material in the model.

关 键 词：双能CT 基材料分解法 材料识别 模拟验证 

分 类 号：TL273[核科学技术—核燃料循环与材料]