PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon |
Lu Rong-Chun(卢荣春)a)b), Yu De-Yang(于得洋)a)†, Shao Cao-Jie(邵曹杰)a), Ruan Fang-Fang(阮芳芳)a), and Cai Xiao-Hong(蔡晓红)a) |
a Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; b Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract Influence of core property on multi-electron process in the collisions of q=6-9 and 11 isocharged sequence ions with Ne is investigated in the keV/u region. The cross-section ratios of double-, triple-, quadruple- and total multi-electron processes to the single electron capture process as well as the partial ratios of different reaction channels to the relevant multi-electron process are measured by using position-sensitive and time-of-flight techniques. The experimental data are compared with the theoretical predictions including the extended classical over-barrier model, the molecular Columbic barrier model and the semi-empirical scaling law. Results show a core effect on multi-electron process of isocharge ions colliding with Neon, which is consistent with the results of Helium we obtained previously.
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Received: 18 November 2009
Revised: 09 April 2010
Accepted manuscript online:
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PACS:
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34.50.-s
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(Scattering of atoms and molecules)
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34.70.+e
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(Charge transfer)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10874188 and 10775160). |
Cite this article:
Lu Rong-Chun(卢荣春), Yu De-Yang(于得洋), Shao Cao-Jie(邵曹杰), Ruan Fang-Fang(阮芳芳), and Cai Xiao-Hong(蔡晓红) Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon 2010 Chin. Phys. B 19 115202
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