首页> 外文会议>Conference on X-Ray Nanoimaging: Instruments and Methods;Society of Photo-Optical Instrumentation Engineers >Focusing of hard X-rays with monolithic two-dimensional multilayer Laue lenses: technical challenges and current status
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Focusing of hard X-rays with monolithic two-dimensional multilayer Laue lenses: technical challenges and current status

机译:用单片二维多层Laue透镜聚焦硬X射线:技术挑战和现状

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Hard X-ray microscopy is a powerful scientific tool capable of providing sub-10 nm spatial resolution imaging ofmaterial’s chemical composition and internal structure. Multilayer Laue Lenses (MLLs) have been developed and usedfor hard x-ray nanofocusing. MLLs are one dimensional X-ray diffractive optics fabricated through multilayer depositionand sectioning. An orthogonal alignment of two MLLs yields a point focus; 10 milli-degree orthogonality and sub-10μm positioning accuracy along the beam direction is required to avoid astigmatism and achieve 10 nm focal spot size at12 keV photon energy. Up-to-date, developed x-ray microscopy systems were equipped with eight degrees of nano-scalemotion to perform full alignment of individual MLL optics. Bonding of two individual lenses together in pre-determinedconfiguration significantly simplifies alignment process and makes them compatible with a more conventional ZonePlate – based microscopes. In this work, we give an overview of the existing bonding effort and present our approach tofabricate a monolithic 2D MLL optic.
机译:硬X射线显微镜是一种功能强大的科学工具,能够提供低于10 nm的空间分辨率成像 材料的化学成分和内部结构。多层劳厄透镜(MLL)已开发并使用 用于硬X射线纳米聚焦。 MLL是通过多层沉积制造的一维X射线衍射光学器件 和切片。两个MLL的正交对齐会产生一个点焦点。 10毫度正交度和10次以下 沿光束方向的定位精度必须为μm,以避免散光并达到10 nm的焦点尺寸 12 keV光子能量。最新开发的X射线显微镜系统配备了八度的纳米级 进行运动以执行单个MLL光学元件的完全对准。以预定的方式将两个单独的镜片粘合在一起 配置显着简化了对准过程,并使它们与更传统的区域兼容 平板式显微镜。在这项工作中,我们概述了现有的绑定工作,并介绍了我们的方法 制作单片2D MLL光学元件。

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