Seems a little excessive, no? I mean four would have been enough, one for each fish.

Electron energy loss spectroscopy (EELS) is a form of electron microscopy in which a material is exposed to a beam of electrons with a known, narrow range of kinetic energies. Some of the electrons will undergo inelastic scattering, which means that they lose energy and have their paths slightly and randomly deflected.

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2023年11月1日 · A four-dimensional EELS (4D-EELS) dataset can be recorded with a slot aperture selecting the specific momentum direction in the diffraction plane and the beam scanning in two spatial dimensions. In this paper, the basic principle of the 4D-EELS technique and a few examples of its application are presented.

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A four- dimensional EELS (4D-EELS) dataset can be recorded with a slot aperture selecting the specific momentum di-rection in the diffraction plane and the beam scanning in two spatial dimensions. In this paper, the basic principle of the 4D-EELS technique and a few examples of its application are presented. In addition to parallelly acquired

电子能量损失谱(Electron energy loss spectroscopy,简称EELS)可以实现横向分辨率10 nm，深度0.5~2 nm的区域内成分分析;2. 具有 X射线光电子能谱 (X-ray photo spectroscopy,简称XPS)所 没有的微区分析能力;3.

2021年2月22日 · 北京大学物理学院高鹏研究团队与合作者基于扫描透射电子显微镜发展了四维电子能量损失谱技术（4D-EELS），首次实现了对单个纳米结构中不同位置的声子色散测量，绘制了纳米分辨的色散地图。 如图一所示，在衍射平面上利用狭缝光阑收集散射后的电子，可以并行采集具有不同动量转移的声子谱，这大大提高了数据采集效率，使得在空间上进行二维扫描的同时记录不同位置处的色散关系成为可能。 四维电子能量损失谱包含两个空间维度、一个动量维度和 …

18 小时之前 · The Parramatta Eels are set to host the Wests Tigers on Sunday, March 16, in Round 2 of the 2025 NRL season as both sides await their first win of the campaign. Although the Wests Tigers and the ...