In the present work Landé $g_J$ factors for 17 even-parity electronic levels of the terbium atom are presented. The spectra of the Zeeman splitting of the hyperfine structure were recorded with the method of laser spectroscopy in a hollow cathode discharge lamp in a constant magnetic field, with laser induced fluorescence detection. The analysis of 47 spectral lines of terbium in the spectral range between 490 and 609 nm enabled the determination of the $g_J$ factors for the presented even-parity levels for the first time. Moreover, verification of the $g_J$ factor values for 17 odd-parity levels, previously reported by other authors from the analysis of Fourier transform spectra.

在目前的工作中兰德$G_{Ĵ}$给出了铽原子的 17 个偶宇称电子能级的因子。超精细结构的塞曼分裂光谱采用激光光谱法在恒定磁场中的空心阴极放电灯中记录，激光诱导荧光检测。对 490 至 609 nm 光谱范围内的 47 条铽谱线的分析能够确定$G_{Ĵ}$首次提出的均价水平的因素。此外，验证$G_{Ĵ}$17 个奇校验级别的因子值，之前由其他作者从傅里叶变换光谱分析中报告。