硬x射线自放大自发发射自由电子激光优化使用进化算法的专用用户应用

IF 1.4 Q3 PHYSICS, MULTIDISCIPLINARY

Turkish Journal of Physics Pub Date : 2019-12-01 DOI:10.3906/fiz-1909-5

Didem Ketenoglu, E. Bostanci, A. Aydin, B. Ketenoglu

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引用次数: 3

摘要

基于加速器的第四代光源用于广泛的跨学科应用，如纳米技术、材料科学、生物科学和医学。硬X射线自由电子激光器（FEL）作为一种最先进的光源，使用进化算法优化了专用用户应用，如X射线拉曼散射（XRS）、共振非弹性X射线散射（RIXS）和X射线发射光谱（XES）。获得了8GeV电子束驱动的真空平面波荡器的最佳参数集。自放大自发辐射（SASE）操作的性能参数（即通过进化算法优化的SASE性能参数）被发现与世界各地运行的X射线FEL设备一致。研究表明，通过在5keV到10keV范围内找到几种进化算法的解决方案，可以优化特定用户实验的FEL特性。

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

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.

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来源期刊

Turkish Journal of Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

3.50

自引率

0.00%

发文量

期刊介绍： The Turkish Journal of Physics is published electronically 6 times a year by the Scientific and Technological Research Council of Turkey (TÜBİTAK) and accepts English-language manuscripts in various fields of research in physics, astrophysics, and interdisciplinary topics related to physics. Contribution is open to researchers of all nationalities.