Demonstration of a family of X-ray dark-field retrieval approaches on a common set of samples [0.03%]
基于同一套样品集验证X射线暗场重构方法
Samantha J Alloo,Ying Ying How,Jannis N Ahlers et al.
Samantha J Alloo et al.
There are various imaging setups capable of capturing dark-field images, each with its own capabilities and limitations. Across all these setups, the underlying physical mechanism responsible for dark-field contrast is generally defined sim...
Experimental control system of the X-ray magnetic circular dichroism endstation at Hefei Light Source-II [0.03%]
合肥光源二期X射线磁圆二色学站控制系统研究
Anbo Kong,Liuguo Chen,Kai Chen et al.
Anbo Kong et al.
The Hefei Light Source-II (HLS-II) facility is undergoing upgrades to its beamline and endstation to enhance its synchrotron radiation capabilities. For the X-ray Magnetic Circular Dichroism endstation, an experimental control system levera...
High-throughput X-ray total scattering measurement system at BL04B2 of SPring-8 [0.03%]
基于Spring-8BL04B2线站的高通量X射线全散射测量系统
Hiroki Yamada,Seiya Shimono,Shogo Kawaguchi et al.
Hiroki Yamada et al.
X-ray total scattering is widely used for analyzing pair distribution functions (PDFs) to elucidate the local structure of materials. For achieving high-throughput PDF analysis, a beamline monochromator and an experimental system were updat...
Lei Huang,Ruochen Xu,Tianyi Wang et al.
Lei Huang et al.
For accurate characterization of grazing-incidence X-ray mirrors, we present a comprehensive framework to fit measured surface shapes (either slope or height) of X-ray mirrors used in synchrotron radiation and free-electron laser facilities...
Defocused illumination with beam-shaping condenser for uniform wide-field X-ray imaging [0.03%]
用于均匀宽带X射线成像的具有束整形聚光镜的离焦照明
Kuanqiang Zhang,Yijue Luo,Yunfan Di et al.
Kuanqiang Zhang et al.
The beam-shaping condenser (BSC) has become a key optical component in X-ray microscopy, providing a wide field of view with stable and uniform illumination. However, alternating bright and dark fringes often appear at the focal spot, compr...
Increasing X-ray energy improves data quality in serial crystallography [0.03%]
提高X射线自由电子激光的光子能量可提升串行晶体学的数据质量
Do Heon Gu,Danny Axford,James Beilsten-Edmands et al.
Do Heon Gu et al.
Serial synchrotron crystallography (SSX) enables structure determination from microcrystals under near-physiological, room-temperature conditions but is limited in part due to the inevitable onset of radiation damage. The ability to reduce ...
Julia Katharina Rogalinski,Zisheng Yao,Yuhe Zhang et al.
Julia Katharina Rogalinski et al.
X-rays are commonly used in imaging experiments due to their penetration power, which enables non-destructive resolution of internal structures in samples that are opaque to visible light. Time-resolved X-ray tomography is the state-of-the-...
Errors in reconstruction of dichroic X-ray orientation tomography due to polarization rotation of the incident beam [0.03%]
入射光束偏振旋转引起的二色性X射线定向层析成像重建误差
Matthew A Marcus,Harlan Heilman,Kas Andrle et al.
Matthew A Marcus et al.
Dichroic X-ray tomography is a technique in which the crystal orientation or magnetization of a sample is resolved in three dimensions. The best-known uses of this technique are for observation of magnetic moments via circular dichroism, us...
Simultaneous lasing of Ni Kα and Cu Kα lasers from an alloy foil irradiated with an intense X-ray free-electron laser pulse [0.03%]
强X射线自由电子激光脉冲照射合金靶时的镍Kα和铜Kα同时发光现象研究
Yuichi Inubushi,Gota Yamaguchi,Jumpei Yamada et al.
Yuichi Inubushi et al.
We report the simultaneous lasing of two distinct Kα emissions at photon energies of 7.48 keV (Ni Kα1) and 8.05 keV (Cu Kα1). This was achieved by a population inversion induced through intense X-ray free-electron laser (XFEL) irradiatio...
Signal-to-noise and spatial resolution in in-line imaging. 3. Optimization using a simple model [0.03%]
透平X射线成像的信噪比及空间分辨率(III).利用一个简单的模型进行优化
Timur E Gureyev,David M Paganin,Harry M Quiney
Timur E Gureyev
The problem of optimization of propagation-based phase-contrast imaging setups is considered in the case of projection X-ray imaging and three-dimensional tomography with phase retrieval. For two-dimensional imaging, a simple model for a ho...