| 用于探测器校正因子计算的Monte Carlo方法 | |
| 武祯 ; 李君利 ; WU Zhen ; LI Junli | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 校正因子 相关抽样 Dxtran球 强迫碰撞 correction factor correlated sampling Dxtran sphere force collision TL81 |
| 其他题名 | Monte Carlo method for calculating particle radiation detector correction factors |
| 中文摘要 | 为解决探测器校正因子MonteCarlo模拟中,两个随机变量比值计算效率过低和探测器尺寸过小,粒子难以到达探测器并发生碰撞的问题,在MCNP-4C平台上结合已有的Dxtran球和强迫碰撞两种减方差技巧,以及新实现的相关抽样,共同形成了一种高效的校正因子计算方法。选用了4种不同的技巧分别与相关抽样结合,对一个简化的探测器校正因子计算模型进行了计算,与该方法进行了比较。计算结果表明,相关抽样无论与哪种减方差技巧结合,都提高了校正因子计算的FOM(figureofmerit)值。而该文方法则比其中效果最好的方法的FOM值还要高两个数量级。; The calculational efficiency of Monte Carlo simulations of the corretion process in particle detectors is improved by a method that makes more particles arrive at the detector and collide with it. The method combines correlated sampling on the MCNP-4C platform with variance reduction techniques, Dxtran spheres and force collisions. A simple model used to calculate the detector correction factors was compared with four different simulation techniques combined with correlation sampling. The results show the figure of merit (FOM) of each variance reduction technique with correlated sampling was improved. The new method’s FOM was larger than those of all the other methods by two orders of magnitudes.; 国家自然科学基金资助项目(10575065) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/63754]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 武祯,李君利,WU Zhen,等. 用于探测器校正因子计算的Monte Carlo方法[J],2010, 2010. |
| APA | 武祯,李君利,WU Zhen,&LI Junli.(2010).用于探测器校正因子计算的Monte Carlo方法.. |
| MLA | 武祯,et al."用于探测器校正因子计算的Monte Carlo方法".(2010). |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论