Yakubova Galina, Kavetskiy Aleksandr, Prior Stephen A, Torbert H Allen
USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, United States.
USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832, United States.
Appl Radiat Isot. 2017 Oct;128:237-248. doi: 10.1016/j.apradiso.2017.07.003. Epub 2017 Jul 5.
Computer Monte-Carlo (MC) simulations (Geant4) of neutron propagation and acquisition of gamma response from soil samples was applied to evaluate INS system performance characteristic [minimal detectible level (MDL), sensitivity] for soil carbon measurement. The INS system model with best performance characteristics was determined based on MC simulation results. Measurements of MDL using an experimental prototype based on this model demonstrated good agreement with simulated data. This prototype will be used as the base engineering design for a new INS system.
利用计算机蒙特卡罗（MC）模拟（Geant4）来模拟中子传播以及获取土壤样品的伽马响应，以评估用于土壤碳测量的中子活化分析（INS）系统的性能特征[最低检测限（MDL）、灵敏度]。基于MC模拟结果确定了具有最佳性能特征的INS系统模型。使用基于该模型的实验原型对MDL进行测量，结果表明与模拟数据吻合良好。该原型将用作新INS系统的基础工程设计。
