Mirror test for International Thermonuclear Experimental Reactor at the JET tokamak: An overview of the program
Mirror test for International Thermonuclear Experimental Reactor at the JET tokamak: An overview of the program
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DOI：
10.1063/1.2202915
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发表时间：
2006-06
影响因子：
1.6
通讯作者：
M. Rubel;G. D. Temmerman;J. Coad;J. Vince;J. Drake;F. L. Guern;A. Murari;R. Pitts;C. Walker
中科院分区：
文献类型：
--
作者：
M. Rubel;G. D. Temmerman;J. Coad;J. Vince;J. Drake;F. L. Guern;A. Murari;R. Pitts;C. Walker
金属镜将是所有用于等离子体诊断的光谱学和成像系统的重要组成部分，这些系统将用于下一步磁聚变实验，国际热核聚变实验反应堆（ITER）。反射镜性能的任何变化，特别是反射率的变化，都会影响检测信号的质量和可靠性。在热核实验堆设计小组的推动下，在JET托卡马克上启动了一项专门的技术和实验活动，旨在评估由于暴露于等离子体而造成的镜面退化。本文提供了一个全面的概述的镜子测试程序，包括设计细节的镜子样品和他们的支持，他们在JET内的位置，以及曝光前后的光学表征的镜子。由于氚和铍都存在的环境，在JET中的后暴露表征特别具有挑战性。
Metallic mirrors will be essential components of all optical spectroscopy and imaging systems for plasma diagnosis that will be used at the next-step magnetic fusion experiment, International Thermonuclear Experimental Reactor (ITER). Any change of the mirror performance, in particular, reflectivity, will influence the quality and reliability of detected signals. At the instigation of the ITER Design Team, a dedicated technical and experimental activity aiming at the assessment of mirror surface degradation as a result of exposure to the plasma has been initiated on the JET tokamak. This article provides a comprehensive overview of the mirror test program, including design details of the mirror samples and their supports, their locations within JET, and the issue of optical characterization of the mirrors both before and after exposure. The postexposure characterization is particularly challenging in JET as a consequence of an environment in which both tritium and beryllium are present.