【摘要】 为使工业60Coγ辐照装置更好地应用于抗辐射加固研究,应用蒙特卡洛程序GEANT4模拟计算了辐照空间的剂量率分布,并搭建了基于ROOT程序的数据在线存储及离线处理平台。通过合理设计模拟过程,使得模拟结果的统计误差<5%。同时,建立了剂量率分布的计算模型,并利用重铬酸银剂量计完成了实验验证。GEANT4模拟、模型计算以及实验测量三者结果相符合,且模拟与实验的相对偏差<5%。这表明模拟过程正确描述了辐照空间的剂量率分布,所搭建的模拟和数据处理平台可用于相关实验的开展。更多还原

【Abstract】 A detailed GEANT4 Monte Carlo study was performed to calculate the dose rate distributions of an industrial 60Co γ-rays irradiation facility,so it could provide a better service for the research of radiation hardening.All data produced during simulations were on-line stored and off-line analyzed by ROOT.With careful design of simulation processes,the relative errors were less than 5%.For the validation purpose,experiments with ferrous sulfate dosimeter were carried out.Furthermore,a computational model was constructed as a comparison.The relative deviations between simulated and experimental results were less than 5%.The satisfactory agreement of simulations between model and measurements indicates that our work has designed the processes of simulation and got the dose rate distributions in a correct way.更多还原