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.

中文翻译：

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keV 能量下 3D 离子传输方法中的对比模式

我们提供了在 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强度和不同的能量损失矩。主要使用入射能量为 50 和 200 keV 的 He 离子和质子脉冲束检测发射的射弹，用于随机束样本定向。在改变射弹类型和能量时观察到的对比差异可归因于样品核和电子结构，并见证了与冲击参数相关的能量损失过程。我们的结果为解释在前瞻性透射研究中获得的数据提供了基础，例如使用氦离子显微镜时。