Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15-11.08keV/u

RUAN Fang-Fang; ZHANG Hong-Qiang; DING Bao-Wei; YANG Zhi-Hu; CHEN Xi-Meng; CAI Xiao-Hong; YU De-Yang; LU Rong-Chun; SHAO Cao-Jie; LU Jun; CUI Ying; SHAO Jian-Xiong; XU Xu

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Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15-11.08keV/u

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The cross-section ratios of double-, triple-, quadruple-, and the total multi-electron processes to the single electron capture process (σDE/σSC ,σTE/σSC ,σQB/σSC and σME/σSC) as well as the relative ratios among reaction channels in double-electron active, triple-electron active and quadruple-electron active are measured in 13C6+-Ne collision in the energy region of 4.15-11.08 keV/u by employing position-sensitive and time-of-flight coincident techniques. It is determined that the cross-section ratios σDE/σSC ,σTE/σSC ,σQE/σSC and σME/σSC are approximately the constants of 0.20 ±0.03, 0.16±0.04, 0.06±0.02 and 0.42±0.05. These values are obviously smaller than the predictions of the molecular Coulomb over-the-barrier model (MCBM) [J. Phys. B 23 (1990) 4293], the extended classical over-the-barrier model (ECBM) [J. Phys. B 19 (1986) 2925] and the semiempirical scaling laws (SL) [Phys. Rev. A 54 (1996) 4127]. However, the relative ratios among partial processes of DE, TE and QE are found to depend on collision energy, which suggests that the collision dynamics depends on the collision velocity. The limitation of velocity-independent character of ECBM, MCBM and SL is undoubtedly shown.

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《中国物理快报：英文版》 |2006年第1期|95-98|共4页
作者
RUAN Fang-Fang; ZHANG Hong-Qiang; DING Bao-Wei; YANG Zhi-Hu; CHEN Xi-Meng; CAI Xiao-Hong; YU De-Yang; LU Rong-Chun; SHAO Cao-Jie; LU Jun; CUI Ying; SHAO Jian-Xiong; XU Xu;
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Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Graduate School of the Chinese Academy of Sciences, Beijing 100049;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Graduate School of the Chinese Academy of Sciences, Beijing 100049;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Department of Modern Physics, Lanzhou University, Lanzhou 730000;

Department of Modern Physics, Lanzhou University, Lanzhou 730000;

Department of Modern Physics, Lanzhou University, Lanzhou 730000;

Department of Modern Physics, Lanzhou University, Lanzhou 730000;

Department of Modern Physics, Lanzhou University, Lanzhou 730000;

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000;

Department of Modern Physics, Lanzhou University, Lanzhou 730000;

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中图分类物理学;
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Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15-11.08keV/u

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