类Mg离子,特别是n=3的情况,已被广泛地研究了多年,使用的光源主要是激光产生的等离子体和聚变等离子体。对束箔谱学的研究的主要目的是测量能级寿命。Sugar等报告过5条Br谱线,他们用Tokamak产生的等离子体光源进行测量,不确定性好于5pm,并建立5个类Mg的Br能级。Ekberg和Churilo Class Mg ions, especially n = 3, have been extensively studied for many years and the light sources used are mainly laser-generated plasmas and fusion plasmas. The main purpose of the study of beam-shed spectroscopy is to measure the energy level lifetime. Sugar et al. Reported five Br spectra measured by a Tokamak-generated plasma source with uncertainty better than 5 μm and five Br-level Mg-like species. Ekberg and Churilo