Potential Effects in the Interaction of Highly Charged Ions with Solid Surfaces
Potential Effects in the Interaction of Highly Charged Ions with Solid Surfaces
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DOI：
10.1380/ejssnt.2016.1
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发表时间：
2016-01
影响因子：
0.7
通讯作者：
M. Sakurai;K. Sasaki;T. Miyamoto;D. Kato;H. Sakaue
中科院分区：
文献类型：
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作者：
M. Sakurai;K. Sasaki;T. Miyamoto;D. Kato;H. Sakaue
在核聚变技术领域，Er 2 O3薄膜是热核聚变反应堆包层涂层材料的候选材料。已知Er 2 O3的发光提供关于其结晶度的信息。我们观察到发光的各种样品，包括Er 2 O3在照射过程中与高电荷态的离子产生的电子束离子源（EBIS）作为入射Ar离子的电荷状态和动能的函数。我们发现发光强度随电荷态的增加呈非线性上升，且与动能无关。这表明发光来自高电荷离子的势能而不是动能。从各种样品的发射光谱表明，从溅射的原子，主要是原子氢，是显着的，而从表面层的发射线，由于斯塔克分裂之间的过渡观察到Er 2 O3样品。[DOI：10.1380/ejssnt.2016.1]
In the field of nuclear fusion technology, Er2O3 thin film is a candidate for the coating material of the blanket of thermonuclear fusion reactor. It is known that the luminescence of Er2O3 provides information on its crystallinity. We observed luminescence of various samples including Er2O3 during the irradiation with highly charged ions produced by an electron beam ion source (EBIS) as a function of charge state and kinetic energy of incident Ar ions. We found that the luminescence intensity non-linearly rises as the charge state increases and is independent of kinetic energy. This demonstrates that the luminescence arises from the potential energy of highly charged ions rather than the kinetic energy. Emission spectra from various samples indicate that emission from sputtered atoms, mostly atomic hydrogen, is remarkable, while emission lines from the surface layers due to transitions among Stark splitting were observed for Er2O3 samples. [DOI: 10.1380/ejssnt.2016.1]