1982 年 51 巻 5 号 p. 1558-1565
Translational energies of secondary neutral atoms produced by the charge transfer reactions in collisions of argon ions Ar+ and metastable argon ions Ar+M with H2. molecules have been measured by a time-of-flight technique at ten eV region. Two kinds of charge transfer processes were examined; reaction between ground state reactants Ar++H2→Ar+H2+, and formation of metastable atoms ArM from metastable ions Ar+M+H2→ArM+H2+. The ground state Ar atoms were predominantly scattered with little or no angular deflection and with little energy exchange, resulting the H2+ in vibrational state v′=1 for Ar+(2P3⁄2) and v′=2 for Ar+(2P1⁄2). On the other hand, the ArM atoms were yielded with being deflected in relatively wide angle and releasing considerable amount of internal energy (≥1 eV).
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