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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >A review of colour center and nanostructure creation in LiF under heavy ion irradiation
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A review of colour center and nanostructure creation in LiF under heavy ion irradiation

机译：重离子辐照下LiF的色心和纳米结构创建综述

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摘要

A study of radiation damage in LiF crystals under irradiation with MeV-GeV energy ions, from C-12 to U-238, at temperatures varying from 8 to 300 K, depending on the ion energy, energy loss and irradiation temperature, is presented. For light ions (C-12, N-14) at low fluences, it is mainly color centers that are created. Increasing the fluence leads to the overlapping of tracks and the creation of more complex color centers, defect aggregates and dislocations. For ions with an energy loss above a threshold value (dE/dx = 10 keV nm(-1)) the tracks exhibit a central core damage region with a radius of 1-2 nm, surrounded by an extended halo which mainly contains single color centers. In this case, ion-induced nanostructuring is observed. Novel effects of radiation damage creation under ion irradiation at 8 K are observed. The role of energy loss and irradiation temperature in damage creation is discussed.
机译：提出了在LiV晶体中，在8至300 K的温度范围内，从C-12至U-238的MeV-GeV能量离子辐照下，LiF晶体的辐射损伤的研究，具体取决于离子能量，能量损失和辐照温度。对于低通量的轻离子（C-12，N-14），主要是创建了色心。通量的增加会导致轨迹重叠，并导致创建更复杂的色心，缺陷聚集和错位。对于能量损失高于阈值（dE / dx = 10 keV nm（-1））的离子，轨道显示出中心核损伤区域，其半径为1-2 nm，并被扩展的光晕围绕，该光晕主要包含单色中心。在这种情况下，观察到离子诱导的纳米结构。观察到在8 K的离子辐射下产生辐射损伤的新效果。讨论了能量损失和辐射温度在破坏产生中的作用。

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