First mirror tests for ITER : influence of material choice on the erosion/deposition mechanisms affecting optical reflectivity
First mirror tests for ITER : influence of material choice on the erosion/deposition mechanisms affecting optical reflectivity
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ITER 的首次镜子测试：材料选择对影响光学反射率的侵蚀/沉积机制的影响
DOI：
10.1016/j.jnucmat.2007.01.024
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发表时间：
2007
影响因子：
3.1
通讯作者：
P. Oelhafen
中科院分区：
文献类型：
--
作者：
G. D. Temmerman;R. Pitts;V. Voitsenya;L. Marot;G. Veres;M. Maurer;P. Oelhafen
ITER上几乎所有的光学诊断系统都将基于容器内的金属第一反射镜。由于电荷交换中性粒子的侵蚀和从面向等离子体的部件侵蚀的材料的再沉积，它们的表面反射率可能恶化，这代表了对光谱和激光信号的可靠性的严重关注。托卡马克社区内的协调一致的努力已经开始描述这些影响，并寻求缓解方法。到目前为止，不同的破坏作用（侵蚀和沉积）一直被认为是独立的，忽略了基底可能发挥的任何作用。在这方面的贡献，我们试图评估基板材料的影响，使用不同的方法：实验室模拟实验，在偏滤器区域的TCV托卡马克和数值模拟使用蒙特-卡罗代码TRIDYN的镜子曝光。我们的研究结果对ITER第一镜材料的选择具有潜在的重要意义。
Almost all optical diagnostics systems on ITER will be based on in-vessel metallic first mirrors. The possible deterioration of their surface reflectivity as a result of erosion by charge-exchange neutrals and re-deposition of material eroded from the plasma-facing components represents a serious concern for the reliability of spectroscopic and laser signals. A concerted effort within the tokamak community has been initiated to characterize these effects and seek mitigation methods. To date, the different damaging effects (erosion and deposition) have always been considered independently, neglecting any role that may be played by the substrate. In this contribution, we attempt to assess the influence of substrate material using different approaches: laboratory simulation experiments, mirror exposures in the divertor region of the TCV tokamak and numerical simulations using the Monte-Carlo code TRIDYN. Our results have potentially important implications for the choice of ITER first mirror materials.
影响因子：
3.1
作者：
T. Sugie;S. Kasai;M. Taniguchi;M. Nagatsu;T. Nishitani
通讯作者：
T. Sugie;S. Kasai;M. Taniguchi;M. Nagatsu;T. Nishitani