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Polarization of Radiation Emitted after Electron Impact Excitation |
| WU Ze-Qing;LI Yue-Ming;DUAN Bin;YAN Jun;ZHANG Hong |
| Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, PO Box 8009-57, Beijing 100088 |
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| Cite this article: |
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WU Ze-Qing, LI Yue-Ming, DUAN Bin et al 2007 Chin. Phys. Lett. 24 1560-1562 |
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Abstract A programme is developed to calculate the polarizations of the radiation emitted after electron impact excitation. The fully relativistic distorted-wave method is used in cross-section calculations. The programme is applied to He- and Li-like ions. The calculated values of line polarization are compared with other theoretical results and experimental values. For He-like U, at lower
incident energy, the present polarization agrees with the other theoretical ones within 1%, while at higher energy, the differences increase up to about 10%. For He-like Fe and Ti, the present results of polarization degree for most of the lines agree with the experimental data within the experimental error bars. For the Li-like Ti line q (1s2s2p2P 3/2 to 1s22s), the present value of
the polarization agree excellently with another theoretical one, and both the values are consistent with the measured data within the experimental error bar.
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| Keywords:
34.80.Dp
34.80.Kw
32.30.Rj
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Received: 06 December 2006
Published: 17 May 2007
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