论文标题

关于将差分进化应用于X射线光谱的分析

On the Application of Differential Evolution to the Analysis of X-Ray Spectra

论文作者

Kepa, Anna, Sylwester, Barbara, Siarkowski, Marek, Sylwester, Janusz

论文摘要

使用差分进化的方法(DE,)我们确定了2003年1月21日爆炸的冠状元素丰度和差异发射度量(DEM)分布。分析是基于Resik X射线光谱。 de属于进化算法的家族。 de在概念上是简单易用的,因此已应用于解决科学和工程方面的许多问题。在这项研究中,我们在新的情况下应用了此方法:同时确定血浆组成和DEM。为了提高使用DE获得的结果的置信度,我们通过将DE合成光谱与RESIK观察到的各个光谱进行比较,测试了其算法的使用。提出了对所使用的DE方法的广泛讨论以及燃烧等离子体的物理特征。

Using methods of differential evolution (DE,) we determined the coronal elemental abundances and the differential emission measure (DEM) distributions for the plasma flaring on 2003 January 21. The analyses have been based on RESIK X-ray spectra. DE belongs to the family of evolutionary algorithms. DE is conceptually simple and easy to be implemented, so it has been applied to solve many problems in science and engineering. In this study we apply this method in a new context: simultaneous determination of plasma composition and DEM . In order to increase the confidence in the results obtained using DE, we tested the use of its algorithms by comparing the DE synthesized spectra with respective spectra observed by RESIK. Extensive discussion of the DE method used and the obtained physical characteristics of flaring plasma is presented.

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