Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15--11.08keV/u
RUAN Fang-Fang1,3, CAI Xiao-Hong1, YU De-Yang1, LU Rong-Chun1,3, SHAO Cao-Jie1, LU Jun1, CUI Ying2, SHAO Jian-Xiong2, XU Xu2, ZHANG Hong-Qiang2, DING Bao-Wei2, YANG Zhi-Hu1, CHEN Xi-Meng2
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Department of Modern Physics, Lanzhou University, Lanzhou 730000
3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15--11.08keV/u
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Department of Modern Physics, Lanzhou University, Lanzhou 730000
3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Abstract： The cross-section ratios of double-, triple-, quadruple-, and the total multi-electron processes to the single electron capture process (σDE/σSC, σTE/σSC, σQE/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--11.08keV/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.
(Ion-molecule, ion-ion, and charge-transfer reactions)
引用本文:
RUAN Fang-Fang;CAI Xiao-Hong;YU De-Yang;LU Rong-Chun;SHAO Cao-Jie;LU Jun;CUI Ying;SHAO Jian-Xiong;XU Xu;ZHANG Hong-Qiang;DING Bao-Wei;YANG Zhi-Hu;CHEN Xi-Meng. Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15--11.08keV/u[J]. 中国物理快报, 2006, 23(1): 95-98.
RUAN Fang-Fang, CAI Xiao-Hong, YU De-Yang, LU Rong-Chun, SHAO Cao-Jie, LU Jun, CUI Ying, SHAO Jian-Xiong, XU Xu, ZHANG Hong-Qiang, DING Bao-Wei, YANG Zhi-Hu, CHEN Xi-Meng. Multi-Electron Processes in 13C6+ Ions with Neon Collisions in Energy Region 4.15--11.08keV/u. Chin. Phys. Lett., 2006, 23(1): 95-98.
2006, Vol. 23 
