Some problems arising due to plasma–surface interaction for operation of the in-vessel mirrors in a fusion reactor
Some problems arising due to plasma–surface interaction for operation of the in-vessel mirrors in a fusion reactor
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DOI：
10.1016/s0022-3115(00)00634-6
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发表时间：
2001-03
影响因子：
3.1
通讯作者：
V. Voitsenya;A. F. Bardamid;V. N. Bondarenko;W. Jacob;V. Konovalov;S. Masuzaki;O. Motojima;D. Orlinskij;V. L. Poperenko;I. Ryzhkov;A. Sagara;A. F. Shtan;S. I. Solodovchenko;M. Vinnichenko
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文献类型：
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作者：
V. Voitsenya;A. F. Bardamid;V. N. Bondarenko;W. Jacob;V. Konovalov;S. Masuzaki;O. Motojima;D. Orlinskij;V. L. Poperenko;I. Ryzhkov;A. Sagara;A. F. Shtan;S. I. Solodovchenko;M. Vinnichenko
利用模拟实验的结果，详细分析了两个相互矛盾的过程，即电荷交换原子的溅射和腐蚀材料的沉积对聚变堆等离子体诊断用容器内反射镜寿命的影响。在keV能量范围内的氘等离子体离子长期轰击下，反射镜的退化率不仅与反射镜材料有关，而且与反射镜的初始结构和入射离子的能量有关。最高的电阻表现出由单晶W和Mo制造的反射镜和最低的热压Be制造的反射镜。至于镜面污染的影响，有效的反射率进行了测量和计算的一些金属镜涂有薄膜典型的现有的聚变装置或聚变反应堆：硼，碳，铍。
Effects of two contradictory processes on the survivability of the in-vessel mirrors for diagnosing plasma in a fusion reactor, namely, the sputtering by charge exchanged atoms and deposition of eroded material, are analyzed in detail using results of simulation experiments. The degradation rate of mirrors bombarded long-term by keV energy range ions of deuterium plasma was found to depend strongly not only on the mirror material but also on its initial structure and energy of projectiles. The highest resistance was demonstrated by mirrors fabricated of monocrystal W and Mo and the lowest by mirrors fabricated of hot-pressed Be. As for the effect of mirror contamination, an effective reflectance was measured and calculated for some metal mirrors coated by thin films typical for existing fusion devices or for a fusion reactor: boron, carbon, and beryllium.