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相关概念视频

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
X-ray Crystallography02:18

X-ray Crystallography

23.8K
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...
23.8K

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相关实验视频

Updated: Jun 11, 2025

High Pressure Single Crystal Diffraction at PX^2
11:32

High Pressure Single Crystal Diffraction at PX^2

Published on: January 16, 2017

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劳埃-DIALS:为多色色X射线衍射数据提供开源软件.

Rick A Hewitt1, Kevin M Dalton, Derek A Mendez2

  • 1Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts 02138, USA.

Structural dynamics (Melville, N.Y.)
|October 10, 2024
PubMed
概括
此摘要是机器生成的。

多色X射线衍射提供了高效的数据收集,但分析起来很复杂. 新的软件Laue-DIALS与Careless算法相结合,可以对这些数据进行索引和整合,克服了以前对时间解析研究的限制.

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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

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

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相关实验视频

Last Updated: Jun 11, 2025

High Pressure Single Crystal Diffraction at PX^2
11:32

High Pressure Single Crystal Diffraction at PX^2

Published on: January 16, 2017

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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

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

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科学领域:

  • 晶体学 晶体学是指结晶学.
  • 材料科学 材料科学 材料科学
  • 在X射线中,X射线的衍射.

背景情况:

  • 多色X射线在衍射方面效率高,但难以分析.
  • 由于分析的复杂性,目前的方法丢弃了大多数多色X射线光子.
  • 挑战包括格子搜索,索引,波长分配和强度校正.

研究的目的:

  • 介绍Laue-DIALS,一个开源软件管道,用于索引和整合多色X射线衍射数据.
  • 为分析复杂的多色衍射数据集提供一个强大的解决方案.
  • 为了方便使用多色色X射线源的时间解析应用.

主要方法:

  • 开发了Laue-DIALS,这是一个基于dxtbx工具箱的开源软件管道.
  • 集成的Laue-DIALS与Careless算法进行波解卷和强度校正.
  • 在多色色差数据上的基准Laue-DIALS性能.

主要成果:

  • Laue-DIALS成功地索引和整合了多色色差数据.
  • 联合的Laue-DIALS和Careless方法有效地处理波长依赖的效应和波.
  • 基准结果表明适合分析多色数据,包括时间解析的实验.

结论:

  • 劳埃-DIALS提供了一个开源,模块化和可扩展的解决方案,用于多色色X射线衍射数据分析.
  • 软件管道,与无忧无虑,克服了多色数据处理的关键挑战.
  • 这一进步支持高效使用多色X射线进行时间解析的晶体学研究.