当前位置: X-MOL 学术Instrum. Sci. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Total neutron scattering and data analysis in a virtual experiment: a case study on heavy water with a vanadium calibration sample
Instrumentation Science & Technology ( IF 1.6 ) Pub Date : 2021-03-04 , DOI: 10.1080/10739149.2021.1894170
Weichao Meng 1 , Rong Du 2, 3 , Ming Tang 2, 3 , Lili Yan 2, 3 , Zhijia Sun 2, 3 , Junrong Zhang 2, 3 , Tao Xiong 1
Affiliation  

Abstract

A total scattering neutron instrument is simulated using a ray-tracing package to evaluate the technique and data reduction algorithms. The neutron guide and chopper system were first optimized to obtain the highest neutron flux with satisfactory angular divergence. Next, a series of virtual experiments were conducted using heavy water and calibration vanadium samples. Data analysis algorithms were also developed. The resultant simulated sample static structure factor was in excellent agreement with the experimental measurements. Additionally, analytical and Monte Carlo methods are applied to account for multiple scattering in a variety of sample sizes. The effectiveness of this method and possible improvements are discussed.



中文翻译:

虚拟实验中的总中子散射和数据分析:含钒校准样品的重水案例研究

摘要

使用射线追踪包模拟全散射中子仪器,以评估技术和数据简化算法。中子导向器和斩波器系统首先被优化以获得具有令人满意的角发散度的最高中子通量。接下来,使用重水和校准钒样品进行了一系列虚拟实验。还开发了数据分析算法。所得模拟样品静态结构因子与实验测量结果非常吻合。此外,还应用了分析和蒙特卡罗方法来解释各种样本大小的多重散射。讨论了这种方法的有效性和可能的​​改进。

更新日期:2021-03-04
down
wechat
bug