关键词: 双电子复合/
速率系数/
DAC效应/
Au34+离子
English Abstract
Theoretical studies of dielectronic recombination for Au34+ ions
Fu Yan-Biao1 2,Wang Xu-Dong1 2,
Su Mao-Gen1 2,
Dong Chen-Zhong1 2
1.Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
2.Joint Laboratory of Atomic and Molecular Physics, Northwest Normal University and Institute of Modern Physics of Chinese Academy of Sciences, Lanzhou 730070, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant No. 11464043).Received Date:08 September 2015
Accepted Date:17 November 2015
Published Online:05 February 2016
Abstract:Dielectronic recombination (DR) rate coefficients of complex structure ions are very important for spectral simulation in some application researches, such as nuclear fusion and extreme ultraviolet lithography. Theoretical calculations are made for dielectronic recombination rate coefficients of Au34+ ions by using a flexible relativistic atomic code. Influences of excitation and radiation channels, configuration interactions, and decays to autoionizing levels possibly followed by radiative cascades (DAC) on DR rate coefficient are analyzed. The contribution of DAC is evident. The total DR rate coefficient is greater than either the radiation recombination coefficient or three-body recombination coefficient for electron temperature greater than 1 eV. In order to facilitate simple applications, the total DR rate coefficients for the ground state and the first excited state are fitted to an empirical formula. These results should be useful for further analyzing the DR process of complex structures ions.
Keywords: dielectronic recombination/
rate coefficient/
DAC effect/
Au34+ ions
