A new reconstruction method based on classical molecular dynamics of neutron penumbral imaging in ICF

A new reconstruction method based on classical molecular dynamics of neutron penumbral imaging in ICF
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ICF中子半影成像经典分子动力学重建新方法

DOI:
10.1016/j.nima.2007.06.005
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发表时间:
2007-08
期刊:
Nucl. Instr. Meth. A
影响因子:
--
通讯作者:
Dongjian Liu
Dongjian Liu
中科院分区:
其他
文献类型:
--
作者:
Zhu An;Qing Hou;Lian Zou;Zongqing Zhao;Changhuan Tang;Dongjian Liu

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过去,中子半影成像技术的研究往往依赖于线性重建方法。由于线性逼近,线性方法常常会造成重建结果的像差。此外,由于影响线性重构结果的平滑中子背景难以估计和去除,线性重构方法也不能很好地发挥作用。在本文中,我们提出了一种基于经典分子动力学的新非线性方法来改进结果。本文讨论了新方法的原理,并给出了一些重构结果,并将其与线性方法之一维纳方法的结果进行了比较。
In the past, the study of neutron penumbral imaging technique often relied on linear reconstruction methods. Due to the linear approximation, the linear methods often caused the aberration in reconstruction results. Furthermore, because the smooth neutron background that influences the linear reconstruction result is difficult to estimate and remove, the linear reconstruction methods cannot work well either. In this paper, we propose a new nonlinear method based on classical molecular dynamics to improve the results. This paper discusses the principle of the new method and presents some of the reconstruction results, which are then compared with the results of Wiener method, one of the linear methods.
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