Atomic Physical aspect of the research on highly ionized high atomic nember eleme using a population inversiorl in a plasma

利用等离子体中的粒子数反转研究高度电离的高原子数元素的原子物理方面

• 批准号: 08680505
• 负责人: DAIDO Hiroyuki
• 金额: $ 1.41万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08680505/
• 关键词: X-Ray Laser; Plasma spectroscopy; Multiply ionized ions; Atomic Physics; Laser-plasma; Nickel-like ions; Electron collisional excitation; Wavelength measurement; X-Ray Laser; Plasma spectroscopy; Multiply ionized ions; Atomic Physics; Laser-plasma; Nickel-like ions; Electron collisional excitation; Wavelength measurement

The measurement of wavelengths for well defined isolated and dominant lasing lines in the spectra contributes to the improvement of the precision calculation of atomic structures for highly ionized high atomic number elements where the relativistic atomic physics calculation is essentially important. Because x-ray laser line comes from the well defined atomic configuration from a well defined ionization stage. The plasma parameter space for creating the population inversion is much narrower compared with that of spontaneous emission lines which overlap significantly with many lines from various ionization stages and from the wide range of the density and the temperature regions. Therefore it is very difficult to distinguish single spontaneous emission lines in the high atomic number plasmas. The ratio of the lasing line width versus central wavelength is less than 10^<-4>. We have made precision measurement of the Ni-like soft x-ray laser wavelengths in high-Z ions, which include Nd (Z=60), Sm (Z=62), Gd (Z=64), Dy (Z=66), Ho (Z=67), Yb (Z=70), Hf (Z=72) and Ta (Z=73), where Z is the atomic number. Only one or two lines are amplified due to the population inversions in the well defined plasma, which can be utilized for the wavelength standard for the highly ionized high atomic number stoms. We made the data base of this results. The result can justify the result of the relativistic atomic physics calculation with the electron correlation and so on.

光谱中定义良好的分离和显性激光线的波长的测量有助于改善高度电离高原子数元素原子结构的精确计算，而相对论原子物理学计算基本上很重要。因为X射线激光线来自定义明确的电离阶段定义的原子构型。与自发发射线相比，用于创建种群倒置的血浆参数空间要窄得多，这些发射线与来自各个电离阶段的许多线以及来自密度和温度区域的较大范围的许多线重叠。因此，很难区分高原子数等离子体中的单个自发发射线。激光线宽度与中心波长的比率小于10^<-4>。 We have made precision measurement of the Ni-like soft x-ray laser wavelengths in high-Z ions, which include Nd (Z=60), Sm (Z=62), Gd (Z=64), Dy (Z=66), Ho (Z=67), Yb (Z=70), Hf (Z=72) and Ta (Z=73), where Z is the atomic number.由于定义良好的等离子体中的种群反转，仅将一两条线放大，可用于高度电离高原子数STOM的波长标准。我们做出了此结果的数据库。结果可以证明相对论原子物理学与电子相关等等的结果合理。