Accurate extreme ultraviolet spectra of open N-shell neodymium (Nd) ions were recorded at the electron beam ion trap facility of the National Institute of Standards and Technology. The measurements were performed for nominal electron beam energies in the range of 0.90 keV to 2.31 keV. The measured spectra were then compared with the spectra simulated by a collisional-radiative model utilizing atomic data produced with a fully relativistic atomic structure code. Consequently, 59 lines from Br-like to Ni-like Nd ions were unambiguously identified, most of which were newly assigned in this study. The wavelengths of 9 known lines from Ni-, Cu- and Zn-like Nd ions were in excellent agreement with previous measurements.

在美国国家标准技术研究院的电子束离子阱设备中记录了开孔N壳钕（Nd）离子的准确的极端紫外光谱。针对标称电子束能量在0.90 keV至2.31 keV的范围内进行了测量。然后将测得的光谱与通过使用完全相对论原子结构代码产生的原子数据的碰撞辐射模型模拟的光谱进行比较。因此，明确确定了从Br样到Ni样Nd离子的59条谱线，其中大多数是本研究中新分配的。类似于镍，铜和锌的Nd离子的9条已知谱线的波长与以前的测量非常吻合。