| Original Articles |
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Optically Forbidden Excitations of 2s Electron of Neon Studied by Fast Electron Impact |
| GE Min, ZHU Lin-Fan, LIU Cun-Ding, XU Ke-Zun |
| Hefei National Laboratory for Physical Sciences at Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei 230026 |
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| Cite this article: |
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GE Min, ZHU Lin-Fan, LIU Cun-Ding et al 2008 Chin. Phys. Lett. 25 3646-3648 |
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Abstract The electron energy loss spectrum in the energy region of 42--48.5eV of neon is measured with an angle-resolved fast-electron energy-loss spectrometer at an incident electron energy of 2500eV. Besides the dipole-allowed autoionization transitions of 2s-1np(n=3,4) and 2p-23s3p, the dipole-forbidden ones of 2s-1ns(n=3-6) and 2-13d are observed. The line profile parameters, i.e. Er, Γ and q for these transitions, are determined, and the momentum transfer dependence behaviour is discussed.
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| Keywords:
34.80.Dp
34.80.Pa
34.50.Fa
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Received: 28 March 2008
Published: 26 September 2008
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| PACS: |
34.80.Dp
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(Atomic excitation and ionization)
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34.80.Pa
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(Coherence and correlation)
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34.50.Fa
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(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
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