Abstract
Multiply charged carbon ions up to C5+ ions have been observed from C2H2 and CH4 molecules in 1.05 MeV/amu Ar12+ ion impact. These ions are believed to be produced through processes where multiply charged molecular ions are produced first by direct ionization and, then, dissociate via Coulomb explosion into atomic ions. The peak positions of ions from C2H2 molecules are found to be shifted with respect to those of ions from CH4 molecules and this shift is understood to be due to the initial kinetic energy provided through the Coulomb potential between the dissociating ions.
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Tawara, H., Tonuma, T., Shibata, H. et al. Multiply charged carbon ions produced from C2H2 and CH4 molecules in energetic, heavy ion impact. Z Phys D - Atoms, Molecules and Clusters 2, 239–242 (1986). https://doi.org/10.1007/BF01429079
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DOI: https://doi.org/10.1007/BF01429079