Some problems of the material choice for the first mirrors of plasma diagnostics in a fusion reactor
Some problems of the material choice for the first mirrors of plasma diagnostics in a fusion reactor
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DOI：
10.1063/1.1149402
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发表时间：
1999-01
影响因子：
1.6
通讯作者：
V. Voitsenya;V. Konovalov;A. F. Shtan;S. I. Solodovchenko;M. Becker;A. F. Bardamid;K. Yakimov;V. Gritsyna;D. Orlinskij
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文献类型：
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作者：
V. Voitsenya;V. Konovalov;A. F. Shtan;S. I. Solodovchenko;M. Becker;A. F. Bardamid;K. Yakimov;V. Gritsyna;D. Orlinskij
我们提出的聚变反应堆的环境对光谱学和激光诊断的第一镜的光学性质的影响的模拟实验的结果。我们发现，最大的影响，镜面光学性能的退化是由于电荷交换原子。这些原子可以通过两种方式影响镜子质量：溅射和从真空室的其他内部组件溅射的材料的再沉积。比较了由不同金属制成的反射镜在氢或氘等离子体离子长期轰击下的退化率。根据对所有数据的分析，我们得出结论，为了正确选择第一反射镜材料，必须进行特殊的实验。这些试验应包括以下几个方面：（1）研究肿胀对反射镜表面改性的作用;（2）找到金属反射镜的百万次激光损伤阈值;（3）开发和测试保护第一反射镜免受再沉积的方法。
We present the results of simulation experiments on the effect of the fusion reactor environment on the optical properties of the first mirrors for spectroscopy and laser diagnostics. We found the greatest effect on the degradation of mirror optical properties was due to charge exchange atoms. These atoms can affect mirror quality in two ways: by sputtering and by redeposition of material sputtered from other inner components of the vacuum chamber. The degradation rates of mirrors made of different metals and subjected to long-term bombardment by ions from hydrogen or deuterium plasmas are compared. From analysis of all data, we concluded that special experiments will have to be conducted in order to make a correct choice of a first mirror material. These tests should include the following: (1) study the role of swelling on mirror surface modification; (2) find the multimillion shot laser-induced-damage threshold of metal mirrors; and (3) develop and test methods to protect the first mirrors from redeposi...