Relativistic Distorted-Wave Calculations of Electron Impact Excitation Cross Sections of Be-Like C2＋ Ions  

作　　者：蒋军 董晨钟 颉录有 王建国 颜君 Stephan Fritzsche 

机构地区：[1]College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 [2]National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000 [3]Institute of Applied Physics and Computational Mathematic, Beijing 100088 [4]Institute für Physlk, Universitat Kassel, D-34132 Kassel, Germany

出　　处：《Chinese Physics Letters》2007年第3期691-694,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10376026 and 10434100, the Foundation for the Excellent Youth Scholars of the Ministry of Education of China.

摘　　要：A fully relativistic distorted-wave program is developed based on the Grasp92 and Ratip packages to calculate electron impact excitation （EIE） cross sections. As a first application of the program, the EIE cross sections of Be-like C^α＋ ions from the metastable 1s^22s2p^3 p to 1s^22p^2 ^3 p excitation and the inner-shell excitations are calculated systematically. Meanwhile, the correlation effects of target states are discussed. It is found that the correlation effects play an important role in the low energy EIE cross sections. An excellent agreement is found when the results are compared with previous calculations and recent measurements.A fully relativistic distorted-wave program is developed based on the Grasp92 and Ratip packages to calculate electron impact excitation （EIE） cross sections. As a first application of the program, the EIE cross sections of Be-like C^α＋ ions from the metastable 1s^22s2p^3 p to 1s^22p^2 ^3 p excitation and the inner-shell excitations are calculated systematically. Meanwhile, the correlation effects of target states are discussed. It is found that the correlation effects play an important role in the low energy EIE cross sections. An excellent agreement is found when the results are compared with previous calculations and recent measurements.

关 键 词：HIGHLY-CHARGED IONS ENERGY-LOSS TRANSITION ABSOLUTE ATOMS PROGRAM PACKAGE 

分 类 号：O53[理学—等离子体物理]