Abstract

A simple way of estimating the probability of helium ions He⁺ surviving when reflected from different metal surfaces is described that employs modeling with the SCATTER and TRIM binary collision codes. The probability of reflected helium ions surviving is estimated from their energy spectra, in the form of the ratio of their areas. The dependences of the probability of He⁺ ions reflected from Cu and Al surviving on the reciprocal perpendicular velocity are calculated, and the characteristic velocity of an electron migrating from a metal to an incident ion is estimated.

中文翻译：

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使用二元碰撞码估算从表面反射时氦离子幸存的概率

摘要

描述了一种估算氦离子He ⁺从不同金属表面反射时存活的概率的简单方法，该方法采用了SCATTER和TRIM二进制碰撞代码进行建模。反射氦离子幸存的可能性是根据其能谱以其面积比的形式估算的。计算了从Cu和Al反射下来的He ⁺离子幸存的概率与相互垂直速度的关系，并估算了电子从金属迁移到入射离子的特征速度。