Compact collimated vacuum ultraviolet diagnostics for localized impurity measurements in fusion boundary plasmas
Compact collimated vacuum ultraviolet diagnostics for localized impurity measurements in fusion boundary plasmas
复制标题
用于聚变边界等离子体中局部杂质测量的紧凑型准直真空紫外诊断
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
R. Majeski
中科院分区：
文献类型：
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作者：
V. Soukhanovskii;D. Stutman;M. Finkenthal;H. Moos;R. Kaita;R. Majeski
本文介绍了用于核聚变等离子体装置边界等离子体杂质发射测量的紧凑型真空紫外诊断技术。仪器设计用于监测300 - 2000 A之间的共振杂质线强度。强度被用来推断基本但重要的等离子体参数，如杂质电荷态密度，辐射功率，或电子温度和密度估计。所有使用的组件和材料均满足超真空和高烘烤温度要求，使仪器能够在靠近发射等离子体的位置进行真空端口或容器内放置。该仪器具有高的空间分辨率（Δ 1 ~ 1cm）和时间分辨率（Δτ ~ 100 μs）。 光谱分辨率为Δλ <$20 A。 近垂直入射的平面衍射光栅用于入射辐射的色散，由高精度机械叠栅准直器准直。高度局部化的视野，足够的吞吐量和紧凑性区分这些...
Compact vacuum ultraviolet diagnostics for impurity emission measurements in boundary plasmas of nuclear fusion plasma devices are described. The instruments are designed for monitoring intensities of resonant impurity lines between 300 and 2000 A. The intensities are used to infer basic yet important plasma parameters, such as density of impurity charge states, radiated power, or electron temperature and density estimates. All utilized components and materials satisfy ultrahigh vacuum and high bake-out temperature requirements, enabling the instruments to qualify for vacuum port or in-vessel placement, in close proximity to emitting plasmas. The instruments have high spatial (Δl⩽1 cm) and temporal (Δτ⩽100 μs) resolution. The spectral resolution is Δλ⩽20 A. Planar diffraction gratings at near-normal incidence are used for dispersion of incident radiation, collimated by high precision mechanical stacked grid collimators. Highly localized field of view, adequate throughput, and compactness distinguish these...