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TakeTwo: an indexing algorithm suited to still images with known crystal parameters

机译:适合仍然TakeTwo:索引算法图像与已知晶体参数

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The indexing methods currently used for serial femtosecond crystallography were originally developed for experiments in which crystals are rotated in the X-ray beam, providing significant three-dimensional information. On the other hand, shots from both X-ray free-electron lasers and serial synchrotron crystallography experiments are still images, in which the few three-dimensional data available arise only from the curvature of the Ewald sphere. Traditional synchrotron crystallography methods are thus less well suited to still image data processing. Here, a new indexing method is presented with the aim of maximizing information use from a still image given the known unit-cell dimensions and space group. Efficacy for cubic, hexagonal and orthorhombic space groups is shown, and for those showing some evidence of diffraction the indexing rate ranged from 90% (hexagonal space group) to 151% (cubic space group). Here, the indexing rate refers to the number of lattices indexed per image.
机译:目前用于串行的索引方法飞秒结晶学最初为晶体的实验旋转的x射线,提供意义重大三维信息。从x射线自由电子激光和照片串行同步加速器晶体学实验静态图像,哪几个三维数据只能从出现埃瓦尔德球面的曲率。同步加速器晶体学方法也更少适合于静态图像数据处理。提出了一种新的索引方法的目的最大化的使用从静态图像信息考虑到已知的单胞尺寸和空间组。斜方晶系的空间组织显示,对于那些一些证据显示衍射索引率范围从90%(六角空间群)151%(立方空间群)。是指晶格索引的数量/的形象。

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