摘要
对上海金鹏源(SHJPY)^(60)Coγ辐照装置进行数学建模,运用蒙特卡罗方法(MCNP),模拟计算辐照装置在装载0.1g/cm3的均匀产品情况下的剂量分布,软件模拟计算结果的统计误差控制在5%以内,模拟计算结果与实际0.1g/cm3产品剂量分布测试结果比较,发现偏差的绝对值在15%(多数在8%以下)以内,模拟计算与测量数据基本吻合,计算结果可以反应产品吸收剂量的分布规律。
The mathematical model of Shanghai JPY （SHJPY） 60Co-γ -irradiator was established to study the dose mapping of the products treated with 60Co-γ irradiation. The dose distribution of the irradiator in which loaded with 0.1 g/cm3 homogenous products was simulated by Monte Carlo method （MCNP） and the statistical uncertainties of program calculation are all within 5%. Our calculation results show that the differences between measurement and computation are below 15%. However most of the differences are below 8%. The dose mapping of the product which simulated by MCNP are in good agreement with measurement data. The mathematical modeling data have confirmed the dose distribution of the products.
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
2010年第1期57-61,共5页
Journal of Radiation Research and Radiation Processing
关键词
数学建模
蒙特卡罗方法
辐照装置
剂量分布
Mathematical Modeling, Monte Carlo method, Irradiator, Dose mapping
