keV能量下三维离子传输方法中的对比模式
Contrast modes in a 3D ion transmission approach at keV energies
摘要：
我们提出了在3D离子传输实验中可视化对比度图的选项。通过自支撑的单晶硅箔传输的离子的角分布和飞行时间的同时测量允许映射的强度和不同的能量损失时刻。传输的弹丸检测主要是随机束样品取向使用脉冲束的He离子和质子与入射能量为50和200千电子伏。在对比度的差异，观察到不同的弹丸类型和能量时，可以归因于样品的核和电子结构，并见证碰撞参量依赖的能量损失过程。我们的研究结果提供了一个基础，例如使用氦离子显微镜时，在前瞻性的传输研究中获得的数据的解释。
英文摘要：
We present options for visualizing contrast maps in 3D ion transmission experiments. Simultaneous measurement of angular distributions and flight time of ions transmitted through self-supporting, single-crystalline silicon foils allows for mapping of intensity and different energy loss moments. The transmitted projectiles were detected mainly for random beam-sample orientation using pulsed beams of He ions and protons with incident energies 50 and 200 keV. Differences in contrast, observed when varying the projectile type and energy, can be attributed to sample nuclear and electronic structure and bear witness to impact parameter dependent energy loss processes. Our results provide a base for interpretation of data obtained in prospective transmission studies when for example using a helium ion microscope.
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