Dissociation ofH2+Ions in Collision with H Atoms: 3 to 115 keV
- 5 January 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 153 (1), 182-183
- https://doi.org/10.1103/physrev.153.182
Abstract
The cross section for the production of fast protons in collisions between ions and H atoms has been measured in the energy range 3 to 115 keV. The cross section for the same process with as the target particle was also measured and results were compared with previous work as a test of the calibration method. The results show that the H-atom target is more effective in dissociating than is the larger molecule in the energy range 10 to 42 keV. This order of effectiveness is reversed below 10 keV and above 42 keV. Comparison of the H-target results with theoretical calculations based on the Born approximation shows that the collisional excitation of the lowest excited state of the ion—the state—contributes a minor fraction of the total fast-proton production at 115 keV and a major fraction at 3 keV. The differential angular distributions of the fast protons were found to be the same for the H and targets at 10 keV.
Keywords
This publication has 9 references indexed in Scilit:
- Electron Transfer in Proton-Hydrogen-Atom Collisions: 2-117 keVPhysical Review B, 1966
- Franck—Condon Factors for the Ionization of H2 and D2The Journal of Chemical Physics, 1966
- Differential Angular Distribution of H and Dissociation Fragments of Fast Ions Incident on GasPhysical Review B, 1965
- The Transition in Induced by Collision with an Electron, Proton, or Hydrogen AtomPhysical Review B, 1965
- Measurements of Thermal Dissociation of Hydrogen, Using Fast ProtonsThe Journal of Chemical Physics, 1964
- Charge Exchange and Dissociation of , , and Ions Incident on GasPhysical Review B, 1963
- Resonant Electron Capture in Violent Proton-Hydrogen Atom CollisionsPhysical Review B, 1962
- Dissoziation und Umladung von Wasserstoff- und Deuterium-Molekülionen beim Durchgang durch WasserstoffThe European Physical Journal A, 1961
- The dissociation of fast H 2 + ions by hydrogenProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1960