Spectral lines classification and hyperfine structure investigation of Niobium i̇n the ultraviolet region

In this study, the spectral lines of the element niobium (Nb) observed in the ultraviolet region (27922.789 cm-1 – 49261.172 cm-1) using Fourier Transform Spectroscopy (FTS) method were classified and the hyperfine structure of the energy levels was examined. 517 lines of atomic niobium (Nb I), 726 lines of first ion of niobium (Nb II) and 491 lines of niobium (Nb) or neon (Ne) were observed. 127 of 517 lines of Nb I and 126 of the 473 lines classified of Nb I were observed in this study for the first time. 260 of 726 lines Nb II and 292 of the722 lines classified Nb II were observed in this study for the first time. Moreover, 8 spectral lines of Nb I and 8 spectral lines of Nb II were examined by hyperfine structure analysis. 7 A magnetic dipole hyperfine structure constant of energy levels of Nb I were determined. 6 of the 7 A magnetic dipole hyperfine structure constant of energy levels of Nb I were determined for the first time. 6 A magnetic dipole hyperfine structure constant of energy levels of Nb II were determined and compared with literatüre.