Abstract Gold (Au) and carbon (C) ion irradiations were performed on nanoporous gold (NPG) leaves to study the radiation impact of ion species on the microstructure of NPG from the aspects of ligament size, surface areal porosity, ligament surface and internal defect clusters. The results show a great dependence on the species of incident ions when NPG is subjected to the deliberately designed similar radiation exposures of ion irradiations. Heavier ions (Au) are more efficient in changing the surface morphologies of ligaments while lighter ions (C) tend to cause more obvious coarsening of ligaments. The difference is mainly originated from the collision cascade size and the deposited energy density induced by different kinds of incident ions. The present study may help better understand the radiation response mechanism of NPG under different irradiation environments.

中文翻译：

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离子种类对纳米多孔金微观结构的辐射效应

摘要 对纳米多孔金（NPG）叶片进行金（Au）和碳（C）离子辐照，从韧带尺寸、表面积孔隙率、韧带表面和内部缺陷等方面研究离子种类对NPG微观结构的辐射影响。集群。结果表明，当 NPG 受到有意设计的类似离子辐射的辐射暴露时，对入射离子的种类有很大的依赖性。较重的离子 (Au) 在改变韧带的表面形态方面更有效，而较轻的离子 (C) 往往会导致韧带更明显的粗化。这种差异主要源于不同种类的入射离子引起的碰撞级联大小和沉积能量密度。