论文标题
用于单个颗粒衍射成像的新的空气动力透镜注射器
New aerodynamic lens injector for single particle diffractive imaging
论文作者
论文摘要
专门针对自由电子激光器的单粒子衍射成像实验的需求而开发了空气动力学镜头注射器。它的设计允许快速更改喷油器的几何形状和聚焦特性，以优化特定单个样品的注入。在这里，我们在Flash Free-Electron-Laser设施中介绍了其首次使用的结果。通过MIE散射对聚苯乙烯球体的记录衍射模式进行建模，这允许在衍射成像条件下表征粒子梁，并与粒子 - 特定模拟良好一致。
An aerodynamic lens injector was developed specifically for the needs of single-particle diffractive imaging experiments at free-electron lasers. Its design allows for quick changes of injector geometries and focusing properties in order to optimize injection for specific individual samples. Here, we present results of its first use at the FLASH free-electron-laser facility. Recorded diffraction patterns of polystyrene spheres are modeled using Mie scattering, which allowed for the characterization of the particle beam under diffractive-imaging conditions and yield good agreement with particle-trajectory simulations.
