Energy-loss corrections to the lateral spread distributions of helium ions in solids

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2026-04-01 Epub Date: 2026-02-10 DOI:10.1016/j.nimb.2026.166044

A. Mekhtiche , K. Khalal-Kouache

引用次数: 0

Abstract

This study investigated the lateral spread of keV He⁺ ions passing through carbon and aluminum targets using the Marwick and Sigmund’s (MS) theory. We enhanced this theory by incorporating the effect of ion energy loss within the target materials into the calculation using the Valdés and Arista (VA) method. Additionally, we used the mean energy approximation method to identify the optimal expression that best represents the energy loss in the enhanced MS theory. Two expressions of the mean energy show excellent agreement with the extended formulation, providing a computationally efficient approach suitable for depth-resolution algorithms and self-consistent ion-beam analysis workflows. Furthermore, we re-evaluated the scaling law linking angular and lateral distributions at high energy losses, and found that it remains valid.

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固体中氦离子横向扩散分布的能量损失修正

本研究利用Marwick和Sigmund的（MS）理论研究了keV He+离子通过碳和铝靶的横向扩散。我们利用vald和Arista （VA）方法将目标材料内离子能量损失的影响纳入计算，从而加强了这一理论。此外，我们使用平均能量近似方法来确定在增强的质谱理论中最能代表能量损失的最佳表达式。平均能量的两个表达式与扩展公式非常吻合，为深度分辨算法和自洽离子束分析工作流程提供了一种计算效率高的方法。此外，我们重新评估了在高能量损失下连接角分布和横向分布的标度律，并发现它仍然有效。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.