Production of oxygen ions through the laser ablation of alumina
Production of oxygen ions through the laser ablation of alumina
复制标题
通过激光烧蚀氧化铝产生氧离子
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
M. Okamura
中科院分区：
文献类型：
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作者：
G. Saquilayan;S. Ikeda;T. Kanesue;M. Wada;M. Okamura
使用固体氧化物化合物材料的激光烧蚀使得气态元素的离子产生成为可能。激光离子源使用铝和氧化铝靶材，激光功率密度为 2.0 至 4.3 ×10 W/cm。离子信号显示铝和氧化铝靶材主要存在 Al、O 和 C。对于铝靶材，单电荷铝离子在等离子体脉冲中与其他离子一起占主导地位，而较高电荷态的铝离子保持在 30% 以下。同时，由于单电荷氧离子占据总束流的60％，因此在该电流下，氧化铝靶材检测到了大量的单电荷氧和铝离子。
Laser ablation using a solid oxide compound material makes the ion production of gaseous elements possible. Aluminum and alumina targets were used in the laser ion source and was operated for laser power densities 2.0 to 4.3 ×10 W/cm. Ion signals showed the presence of mainly Al, O and C for both aluminum and alumina targets. For the aluminum target, singly charged aluminum ions dominated the ion population in the plasma pulse with other ions and higher charge state aluminum ions stay below 30%. Meanwhile, large amounts of singly charged oxygen and aluminum ions were detected for the alumina target with the current due to the singly charged oxygen ions occupying 60% of the total beam current.