Absolute intensity calibrated extreme ultraviolet spectra radiated by highly charged holmium (Ho) ions from 1 μ m Nd:YAG laser generated plasmas in the 1–8 nm wavelength spectral range were measured and investigated. The spectral features show a broad structured continuum-like emission band, most prominent in the wavelength range 6–8 nm, which accounts for more than half of the emitted power. Assuming local thermodynamic equilibrium (LTE) in the laser produced plasmas and using the flexible atomic code and Cowan suite of codes, the wavelengths and LTE- gA values of unresolved transition arrays (UTAs) from E 1 -contributing transition arrays 4p–4d, 4d–4f and super transition arrays such as 4p 6 4d k −1 4f + 4p 5 4d k +1 –4p 6 4d k −2 4f 2 + 4p 4 4d k +2 + 4p 5 4d k 4f and 4d 10 (5s5p) k 4f...

中文翻译：

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研究1μm激光产生的等离子体中高电荷离子的极紫外光谱

测量并研究了由1μm Nd：YAG激光产生的等离子在1-8 nm波长光谱范围内由高电荷的（（Ho）辐射出的绝对强度校准的极端紫外光谱。光谱特征显示出宽广的结构连续体状发射带，在6-8 nm的波长范围内最为突出，占发射功率的一半以上。假设激光产生的等离子体中存在局部热力学平衡（LTE），并使用灵活的原子代码和Cowan编码套件，则来自E 1贡献跃迁阵列4p–4d，4d的未分辨跃迁阵列（UTA）的波长和LTE-gA值–4f和超过渡数组，例如4p 6 4d k -1 4f + 4p 5 4d k +1 –4p 6 4d k -2 4f 2 + 4p 4 4d k +2 + 4p 5 4d k 4f和4d 10（5s5p） k 4f ...