NII離子4f躍遷幾率和輻射壽命的理論研究.pdf

1、西北師范大學(xué)碩士學(xué)位論文NII 離子4f 躍遷幾率和輻射壽命的理論研究姓名：申曉志申請學(xué)位級別：碩士專業(yè)：原子與分子物理指導(dǎo)教師：袁萍2008-05ABSTRACT On the basis of full relativistic theory, and taking the fine structure of NII 2p4f-2p3d for example, the influence of relativistic, elec

2、tron correlation, relaxation effects, Breit interaction and quantum electrodynamic effects on transition probabilities and the fine structure of pf electron are investigated in detail. The results show that the rel

3、ativistic, electron correlation and relaxation effects are important to the calculations of energy structure and transition probabilities. And the Breit interaction and quantum electrodynamic effects have better optimiza

4、tion on energy level. Then, In the present work, a systematic computation on the transition among 4f and lower configurations for NII ions is carried out by considering relativistic, electron correlation, relaxation effe

5、cts, Breit interaction and quantum electrodynamic effects. The lower odd and even pary include 2s12p3, 2p3s, 2p3d, 2p4s, 2p4d and 2p2, 2p3p,2p4p ,respectively. Transition probabilities of the electric-dipole allowed (E

6、1) and forbidden (E2, M1, M2) transition among the 4f and lower configurations of NII ions are obtained, and the transition probabilities value of the electric-dipole allowed (E1) is well consistent with available exper