dc.creator Jones, E. Grant en_US dc.date.accessioned 2006-06-15T14:10:26Z dc.date.available 2006-06-15T14:10:26Z dc.date.issued 1979 en_US dc.identifier 1979-FC-07 en_US dc.identifier.uri http://hdl.handle.net/1811/10774 dc.description $^{1}$ Supported by Air Force Aero Propulsion Laboratory under contract No. F33625-77-C-3141 en_US dc.description Author Institution: en_US dc.description.abstract Resonant charge-transfer is the major reaction channel in symmetric ion-atom collisions in the rare-gases; however, in xenon, collision excitation can also be a significant reaction channel at low collision energies. Cross section for the reaction $Xe^{+}Xe\rightarrow Xe^{+}+Xe^{*}$ in the range 7-50 eV (c.m). The distribution of electronic excitation in xenon is determined by monitoring luminescence Produced in the bimolecular collision. Within the spectral range 60-600 nm only Xe I spectral lines are observed. The two major Xe I lines at 147.0 and 129.6 nm are classified as $1_{S_{0}} \leftarrow 6s[3/2]^{0}_{1}$ and $1_{S_{0}}\leftarrow 6s[1/2]^{0}_{1}$, respectively. All observed reaction display kinetic energy thresholds corresponding to the transfer of more than 11 eV of translational into internal energy. In each case the observed thresholds exceed the energy difference between the reactants and products taken at infinite separation. Excitation of the lowest resonance level of xenon $6s[3/2]^{0}_{1}$ is found to depend strongly on the electronic state, $^{2}P^{0}_{3/2}$ or $^{2}P^{0}_{1/2}$ of the reacting xenon ions. Mechanisms are proposed to described the major reactions in terms of the potential curves for the $Xe^{+}_{2}$ systems. en_US dc.format.extent 122713 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title ELECTRONIC EXCITATION IN LOW ENERGY SYMMETRIC ION-ATOM COLLIONS IN $XENON^{1}$ en_US dc.type article en_US
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