电子能损的潜径迹形成机制及理论模型的新进展

Latent track formation and theoretical model in the electronic stopping power regime

潜径迹是荷能离子与固体相互作用的一个重要效应 ,可以借助化学蚀刻、电子显微镜、卢瑟福散射和其他方法所显现。通过研究依赖于离子能量和各种靶参数的径迹尺寸的变化可以获得关于微观机制的信息。本文概括地介绍了在电子能损体制下径迹形成的基本现象、观测技术以及所获得的重要的实验结果 。

Latent track formation is a major effect of the interaction of energetic ions with solids. Formative tracks can be revealed by applying many different techniques like chemical etching, electron microscopy, Rutherford backscattering etc. The size and the topography of these tracks are characteristic for the definite ion-solid interaction as well as the deexcitation process. The information on microscopic mechanism can be obtained by studying how the track size changes as a function of the ion energy and various target parameters. This paper intended to give a representative review of investigations dominated by electronic energy loss, including the track formation, the observation techniques, the significant results obtained and the latest progress.