类镁离子磁偶、磁四和磁八光谱跃迁的理论研究  

Magnetic dipole M1, magnetic quadrupole M2, magnetic octupole M3 spectral transition for Mg-like ions

作　　者：易颖婷[1] 易有根[2] 何花[2] 江少恩[3] 郑志坚[3] 唐永建[3] 

机构地区：[1]麓山国际实验学校,湖南长沙410006 [2]中南大学物理与电子学院,湖南长沙410083 [3]中国工程物理研究院 高温高密度等离子体物理国家重点实验室,四川绵阳621900

出　　处：《湖南文理学院学报（自然科学版）》2013年第3期16-24,共9页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：国家自然科学基金(10275056);国防科技重点实验室基金(51480010104ZS7702)

摘　　要：采用平均能级AL模型、相对论量子力学GRASP2程序,考虑到核的有限体积效应、Breit和QED效应等修正,系统地计算了类镁离子组态磁偶极M1、磁四极M2和磁八极M3光谱跃迁波长、跃迁几率和振子强度,所得结果和实验数据及其它计算值进行了比较.结果表明:在ICF和MCF高温激光等离子体中,磁多级矩的跃迁几率过程不能被忽视,高原子序数的高荷电离子的磁多级矩的跃迁几率和中性原子的电偶极矩相当.Fully relativistic multiconfiguration Dirac-Fock method with Breit and QED corrections was used to calculate transition energy level separations, transition probabilities and oscillator strengths for the Mg-like ions. In the calculation, the significant Breit and QED corrections were considered. The results were compared with recent experimental data in good agreements and other theoretical values. The results show that the magnetic multidipole transition probabilities were in correspondence with these of E1 transitions and can not be ignored in the laser plasma of high temperature in ICF and MCF Fusion.

关 键 词：高剥离态 类镁离子 能级间隔 跃迁几率 振子强度 

分 类 号：O571.4[理学—粒子物理与原子核物理]