Extreme ultraviolet radiation of laser-produced zirconium (Zr) plasmas were measured in the 6.7-14.7 nm region using a spatio-temporally resolved laser-produced plasma spectroscopy technique. At shorter wavelengths, the spectrum was dominated by several lines attributed to the 4s-(6p,7p,8p) transition arrays of Zr⁶⁺ to Zr¹⁰⁺ ions. For the 4s-5p and 4p-6s transitions, the spectral lines concentrated near 11.18 nm and smoothly move towards longer wavelengths with decreasing ion-charge-state, which are experimentally and theoretically investigated. The Hartree-Fok (HF) method with relativistic corrections (HFR) using the Cowan's codes and Flexible Atomic Code (FAC) were used to calculate and interpret the observed spectral obtained, respectively. At relatively high temperatures, lines from 3p-3d transitions in Zr¹³⁺ and Zr¹⁴⁺ ions have been found to have an important contribution. A number of spectral lines are established in this study for the first time. Besides the atomic structure calculations, a numerical computation based on the assumption of a normalized Boltzmann distribution among the excited states associated with a steady-state collisional-radiative model (CR), has also been performed to obtain the plasma parameters by comparing the experimental and simulated spectra. The corresponding dominant ion stages and ion fractions for different ion stages were obtained. We have also provided the evolution of rate coefficients as a function of electron density and electron temperature. We reproduced synthetic spectra which are in good agreement with the experiment. Temporal and spatial evolution behavior about plasma parameters have been analyzed. The variation of electron plasma frequency and skin depth with plasma temperature were introduced. The results are may be beneficial for spectroscopic diagnostics of hot plasmas in tokamak and fusion research.

使用时空分辨的激光产生等离子体光谱技术，在6.7-14.7 nm区域内测量了激光产生的锆（Zr）等离子体的极紫外辐射。在较短的波长下，光谱由归因于Zr ⁶⁺到Zr ¹⁰⁺的4s-（6p，7p，8p）过渡阵列的几条线主导。离子。对于4s-5p和4p-6s跃迁，光谱线集中在11.18 nm附近，并随着离子电荷态的降低而平滑地向更长的波长移动，这是通过实验和理论研究的。使用Cowan码和弹性原子码（FAC）进行相对论校正（HFR）的Hartree-Fok（HF）方法分别计算和解释所获得的观测光谱。在相对较高的温度下，Zr ¹³⁺和Zr ^14+中3p-3d跃迁的谱线已发现离子具有重要作用。这项研究中首次建立了许多谱线。除原子结构计算外，还基于与稳态碰撞辐射模型（CR）相关的激发态之间的归一化玻耳兹曼分布的假设进行了数值计算，通过比较实验值和实验值来获得等离子体参数。模拟光谱。获得了相应的主要离子级和不同离子级的离子分数。我们还提供了速率系数随电子密度和电子温度的变化。我们复制了与实验非常吻合的合成光谱。分析了血浆参数的时空演化行为。介绍了电子等离子体频率和趋肤深度随等离子体温度的变化。该结果对于在托卡马克和融合研究中对热等离子体的光谱诊断可能是有益的。