Time-resolved two-dimensional monochromatic imaging of laser-imploded plasma
Time-resolved two-dimensional monochromatic imaging of laser-imploded plasma
复制标题
激光内爆等离子体的时间分辨二维单色成像
DOI：
10.1063/1.1147697
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发表时间：
1997
影响因子：
1.6
通讯作者：
M. Nakasuji
中科院分区：
文献类型：
--
作者：
N. Miyanaga;Y. Aoki;H. Shiraga;K. Shimada;K. Fujimoto;M. Heya;M. Nakasuji
为了准备一种新的激光内爆等离子体诊断工具，我们开发了一种时间分辨二维单色成像系统，该系统由针孔阵列、平面衍射晶体和无阴极狭缝的 X 射线条纹相机组成。我们成功地重建了从充满 D2/Ar 混合气体的内爆塑料壳中发射的 Ar 共振线的时间分辨二维图像。当前系统在垂直于光谱色散的方向上提供~24 ps 的时间分辨率和~16 μm 的空间分辨率。与光谱色散平行的空间分辨率为 ⩽27 μm，这取决于晶体展宽和光谱线宽。
To prepare a new diagnostic tool for the laser-imploded plasma, we have developed a time-resolved, two-dimensional monochromatic imaging system that consists of a pinhole array, a flat diffraction crystal, and an x-ray streak camera without cathode slit. We have successfully reconstructed time-resolved two-dimensional images of an Ar resonance line emitted from an imploded plastic shell filled with D2/Ar mixture gas. The current system provides the temporal resolution of ∼24 ps and the spatial resolution of ∼16 μm for the direction perpendicular to the spectral dispersion. The spatial resolution parallel to the spectral dispersion is ⩽27 μm, that depends on the crystal broadening and the spectral linewidth.