快速重离子在 MgF2 单晶体中产生色心：能量损耗与通量相关性

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2024-11-08 DOI:10.1016/j.radphyschem.2024.112369

Ayman S. El-Said

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引用次数: 0

摘要

离子与固体的相互作用会导致不同材料的表面和主体发生显著变化。金红石晶体结构的 MgF2 是一种应用广泛的重要光学材料。我们用不同动能和流量的高能重离子辐照单晶体。辐照后，我们利用光学光谱法研究了离子诱导的缺陷及其随离子束参数的变化。吸收光谱显示产生了不同类型的离子诱导缺陷，即 F-、F2- 和 F3 中心。根据离子能量损失和通量，研究了观察到的颜色中心的浓度及其产生效率。这些结果对于了解光学材料在太空环境中的降解具有重要意义。

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Creation of color centers in MgF2 single crystals by swift heavy ions: Energy loss and fluence dependence

Ion-solid interaction leads to significant modifications in the surface and bulk of different materials. MgF₂ of a rutile crystalline structure is an important optical material for a large variety of applications. The single crystals were irradiated with energetic heavy ions of various kinetic energies and fluences. After irradiation, we utilized optical spectroscopy to study the ion-induced defects and their evolutions as a function of ion beam parameters. The absorption spectra show the creation of different types of ion-induced defects, namely F-, F₂-, and F₃-centers. The concentrations of the observed color centers as well as their creation efficiency are studied in terms of ion energy loss and fluence. The results are of high importance for understanding the degradation of optical materials in space environments.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.