A hard X-ray self-amplified spontaneous emission free-electron laser optimization using evolutionary algorithms for dedicated user applications

被引：3
|
作者：
Ketenoglu, Didem [1 ]
Bostanci, Erkan [2 ]
Aydin, Ayhan [2 ]
Ketenoglu, Bora [1 ]
机构：
[1] Ankara Univ, Fac Engn, Dept Engn Phys, Ankara, Turkey
[2] Ankara Univ, Fac Engn, Dept Comp Engn, Ankara, Turkey
来源：
TURKISH JOURNAL OF PHYSICS | 2019年 / 43卷 / 06期
关键词：
X-ray free-electron laser; undulator; evolutionary algorithms; optimization; inelastic X-ray scattering; RAMAN-SPECTROSCOPY; SCATTERING;
D O I：
10.3906/fiz-1909-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Accelerator-based fourth-generation light sources are utilized in a wide range of interdisciplinary applications such as nanotechnology, materials science, biosciences, and medicine. A hard X-ray free-electron laser (FEL), as a state-of-the-art light source, was optimized using evolutionary algorithms for dedicated user applications such as X-ray Raman scattering (XRS), resonant inelastic X-ray scattering (RIXS), and X-ray emission spectroscopies (XES). Optimal parameter sets were obtained for an in-vacuum planar undulator driven by an 8 GeV electron beam. Performance parameters of self-amplified spontaneous emission (SASE) operation (i.e. optimized SASE performance parameters through evolutionary algorithms) were found to be consistent with operating X-ray FEL facilities around the world. It is shown that FEL characteristics for specific user experiments can be optimized by finding several evolutionary algorithm solutions within the range of 5 keV to 10 keV.
引用
收藏
页码：551 / 555
页数：5
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