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Chin. Phys. B, 2015, Vol. 24(12): 123401    DOI: 10.1088/1674-1056/24/12/123401
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Fast-electron-impact study on excitations of 4d electron of xenon

Zhang Xina b, Liu Ya-Weia b, Peng Yi-Genga b, Xu Long-Quana b, Ni Dong-Donga b, Kang Xua b, Wang Yang-Yanga b, Qi Yue-Yingc, Zhu Lin-Fana b
a Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
b Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China;
c School of Mathematics, Physics, and Information Engineering, Jiaxing University, Jiaxing 314001, China
Abstract  The electron energy loss spectrum of the 4d excitations of xenon was measured at an incident electron energy of 1500 eV and a scattering angle of 6°. Besides the optically allowed transitions of 4d5/2-1np and 4d3/2-1np', the optically forbidden transitions of 45/2-1ns, 4d5/2-1nd, 4d3/2-1ns', and 4d3/2-1nd' were observed. The measured features are assigned with the help of the calculation by the Cowan Code. The line profile parameters of both optically allowed transitions and optically forbidden ones were determined and compared with the previous available data. It is found that the natural widths of both dipole-allowed and dipole-forbidden excitations are approximately identical, which means the spectator transitions dominate the resonant Auger effect for both dipole-allowed and dipole-forbidden transitions.
Keywords:  electron energy loss spectrum      optically forbidden transition      natural width  
Received:  26 June 2015      Revised:  26 August 2015      Accepted manuscript online: 
PACS:  34.80.Dp (Atomic excitation and ionization)  
  32.80.Aa (Inner-shell excitation and ionization)  
  32.80.Hd (Auger effect)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. U1332204, 11274291, 11504361, and 11320101003).
Corresponding Authors:  Zhu Lin-Fan     E-mail:  lfzhu@ustc.edu.cn

Cite this article: 

Zhang Xin, Liu Ya-Wei, Peng Yi-Geng, Xu Long-Quan, Ni Dong-Dong, Kang Xu, Wang Yang-Yang, Qi Yue-Ying, Zhu Lin-Fan Fast-electron-impact study on excitations of 4d electron of xenon 2015 Chin. Phys. B 24 123401

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