Single-, Double- and Triple-Electron Capture Cross Sections for Multicharged Slow Carbon Ions in H_2, CH_4, C_2H_6, C_3H_8 and CO_2 Molecules

概要

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Cross sections have been measured for single, double and triple electron capture by C^<q+> (q = 1-4) ions from H_2, CH_4, C_2 H_6, C_3 H_8 and CO_2 molecules in the energy range of (1-20)q keV. The cross sections obtained here exhibit little dependence on the incident energy. Compared with the previous scaling laws, the present cross sections revealed a much stronger dependence on the first ionization potential of the molecules. For hydrocarbon molecules including H_2 all the cross sections show a remarkable linearity on the number of compositeatoms. The single electron capture cross sections σ_<q, q-1> are compared with the classical over barrier model and with the Olson model which was slighty modified so as to be applied to the molecular targets.
社団法人日本物理学会の論文
1995-09-15