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相关概念视频

X-ray Crystallography02:18

X-ray Crystallography

23.9K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
23.9K
X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

3.8K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
3.8K

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相关实验视频

Updated: May 10, 2026

Biochemical and Structural Characterization of the Carbohydrate Transport Substrate-binding-protein SP0092
08:53

Biochemical and Structural Characterization of the Carbohydrate Transport Substrate-binding-protein SP0092

Published on: October 2, 2017

ProLEED Studio:用于建模低能电子衍射模式的软件.

Pavel Procházka1, Jan Čechal1,2

  • 1CEITEC - Central European Institute of Technology, Brno University of Technology, Brno, Purkyňova 123, 61200, Czechia.

Journal of applied crystallography
|February 7, 2024
PubMed
概括

本研究介绍了ProLEED Studio,这是一个软件工具,简化了复杂的低能电子衍射模式的分析. 它可以从复杂的衍射数据中精确建模表面结构,帮助科学发现.

科学领域:

  • 表面科学是一门科学.
  • 材料科学是一种材料科学.
  • 固态物理 固态物理

背景情况:

  • 低能电子衍射 (LEED) 提供了关键的表面结构数据.
  • 从超级格子和多个领域分析复杂的LEED模式具有挑战性.
  • 现有的方法缺乏直观的工具,用于精确的格子周期性检索.

研究的目的:

  • 为了介绍ProLEED Studio,一个用于直观而精确的LEED模式建模的软件.
  • 为了方便从衍射数据中解释复杂的表面结构.
  • 为了简化发布LEED分析结果的流程.

主要方法:

  • 开发了ProLEED Studio,具有交互式图形用户界面.
  • 实时建模和操纵LEED模式,衍射点和格子点的实时建模和操纵.
  • 单元格,格子向量,域,网格和尺度条的可视化.

主要成果:

  • 通过ProLEED Studio,可以对LEED模式进行直观而精确的建模.
  • 该软件有助于可视化不同的衍射域及其强度.
  • 提供了以位图和矢量格式的准备发布模型的导出功能.
关键词:
在LEED中,我们学习了LEED.在ProLEED工作室工作室中.计算机程序 计算机程序低能电子衍射的低能电子衍射.互惠的空间互惠的空间

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Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
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Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
07:24

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

Published on: May 10, 2021

相关实验视频

Last Updated: May 10, 2026

Biochemical and Structural Characterization of the Carbohydrate Transport Substrate-binding-protein SP0092
08:53

Biochemical and Structural Characterization of the Carbohydrate Transport Substrate-binding-protein SP0092

Published on: October 2, 2017

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
07:24

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

Published on: May 10, 2021

结论:

  • ProLEED Studio显著简化了LEED数据的建模和发布.
  • 该软件增强了从复杂的衍射模式中检索真实空间格子周期性的能力.
  • 这种工具有助于研究人员准确地确定表面结构.