用于ITER转向器真空紫外线光谱仪的碳化镜样本的反射度测量
Yoo Kwan Kim1,2, Changrae Seon2, Younghwa An2
1Department of Energy Systems Research, Ajou University, 206 Worldcup-ro, Suwon 16499, South Korea.
The Review of scientific instruments
|August 2, 2024
概括
碳化 (SiC) 镜子在真空紫外线 (VUV) 范围内进行反射测试,用于融合等离子体诊断. 测量结果证实了SiC的存在.
科学领域:
- 材料科学 材料科学 材料科学
- 等离子体物理学的物理学
- 光学工程是指光学工程.
背景情况:
- 第一镜是聚变等离子体诊断中的关键光学元件,反射光线分析系统.
- 碳化 (SiC) 被选为ITER转向器VUV光谱仪的第一镜,因为它的强度和辐射耐受性.
研究的目的:
- 开发和使用一种用于测量真空紫外线 (VUV) 波长范围内SiC镜子的反射率的装置.
- 为了实验性地确定SiC镜的反射率在与ITER转向器应用相关的角度.
主要方法:
- 使用空阴极灯 (23-60 nm) 和专用VUV光谱仪开发了一种定制的VUV反射度测量设备.
- 该光谱仪内置了层层衍射格子和反向照明的电荷合装置 (BI-CCD).
- 一种采摘技术,在SiC镜样上精确定位VUV光反射的光圈.
主要成果:
- 对SiC镜样进行了实验性反射度测量,测量了所需的冲击角度.
- 测量的反射率值与理论计算进行了比较.
- 影响反射精度的确定因素包括SiC表面氧化层 (SiO2) 和探测器上的VUV发射角度.
结论:
- 开发的VUV反射性测量系统为化环境中的SiC镜像性能提供实验数据.
- 了解反射率变化对于优化诊断系统设计和数据解释至关重要.
- 表面氧化和入射角是影响SiC镜像反射性在VUV光谱中的关键参数.
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