辐射防护2026，Vol.46Issue(3)：243-249,7.DOI:10.27045/j.1000-8187.202603007
放射性气溶胶监测仪α能谱模拟与验证
Simulation and verification for α spectrum of radioactive aerosol monitor
摘要
Abstract
When conducting α energy spectrum analysis of radioactive aerosols using machine learning methods,a large number of α energy spectra are required to train the model.There are many difficulties in obtaining α energy spectra through radioactive aerosol experiments.Using the Monte Carlo simulation method to obtain α energy spectra is an effective solution.However,the weak penetrating power of α particles makes them susceptible to factors such as filter paper,air,and detector protective layers,posing challenges for high-precision simulation.To address this issue,a corresponding Monte Carlo calculation model was established.Experiments were conducted on 241 Am planar sources and radon progeny aerosol sources successively.The detector parameters and filter paper distribution parameters were corrected respectively.The simulated α energy spectra have good consistency with the experimental results in terms of peak position,spectrum shape,and detection efficiency,verifying the reliability of the method and laying the foundation for α energy spectrum analysis of radioactive aerosol monitors under complex source conditions.关键词
放射性气溶胶/α能谱/蒙特卡罗/模拟计算Key words
radioactive aerosol/α spectrum/Monte Carlo/simulation分类
能源科技引用本文复制引用
马弢,谢伟民,李建伟,王勇,刘立业,李华,张富国,商洁,张艳婷,杨柳..放射性气溶胶监测仪α能谱模拟与验证[J].辐射防护,2026,46(3):243-249,7.基金项目
中央引导地方科技发展资金项目(YDZJSX2024B015). （YDZJSX2024B015）
