Relativistic Distorted-Wave Calculations of Electron Impact Excitation Cross Sections of Be-Like C 2+ Ions
JIANG Jun 1, DONG Chen-Zhong 1,2, XIE Lu-You1, WANG Jian-Guo3, YAN Jun3, Stephan Fritzsche4
1College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 7300702 National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 7300003 Institute of Applied Physics and Computational Mathematic, Beijing 1000884 Institute fur Physik, Universitat Kassel, D-34132 Kassel, Germany
Relativistic Distorted-Wave Calculations of Electron Impact Excitation Cross Sections of Be-Like C 2+ Ions
JIANG Jun 1;DONG Chen-Zhong 1,2;XIE Lu-You1;WANG Jian-Guo3;YAN Jun3;Stephan Fritzsche4
1College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 7300702 National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 7300003 Institute of Applied Physics and Computational Mathematic, Beijing 1000884 Institute fur Physik, Universitat Kassel, D-34132 Kassel, Germany
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 2+ ions from the metastable 1s22s2p 3P to 1s22p23P 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.
Abstract：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 2+ ions from the metastable 1s22s2p 3P to 1s22p23P 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.
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2007, Vol. 24 
