固体材料中快重离子辐照损伤建立过程中的离子速度效应

Ion Velocity Effect in the Process of the Damage Creation in Solid Materials Induced by Swift Heavy Ion Irradiations

快重离子辐照损伤建立过程中的离子速度效应是近年来才发现的,离子速度效应是指快重离子在固体材料中引起辐照损伤的损伤截面,损伤效率和损伤形貌的离子速度相关性,简要介绍了固体材料中快重离子辐照损伤建立过程中离子速度效应的发现、研究现状和主要实验结果,并进行了尝试性评价。

In recent years, the velocity dependence of the damage cross section, the damage efficiency and the damage morphology of solid materials induced by swift heavy ions, named ion velocity effect, is observed. But the mechanism or origin of the ion velocity effect is not clear up to now. In this paper, the discovery, current researching situation and some typical experimental results of ion velocity effect in the process of the damage creation in solids induced by swift heavy ion irradiations were briefly described, and the main theoretical explanation of ion velocity effect was also reviewed and discussed in short words.