H - Formation in proton-metal collisions
| Autor: | J.J.C. Geerlings, P. W. van Amersfoort, J. Los, Jean-Pierre Gauyacq, E.H.A. Granneman, L. F. Tz. Kwakman |
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| Rok vydání: | 1985 |
| Předmět: |
Proton
Chemistry Scattering Energy conversion efficiency chemistry.chemical_element Perturbation (astronomy) First order perturbation Surfaces and Interfaces Tungsten Condensed Matter Physics Ion Surfaces Coatings and Films Metal visual_art visual_art.visual_art_medium Materials Chemistry Atomic physics |
| Zdroj: | Surface Science Letters. 157:A381 |
| ISSN: | 0167-2584 |
| DOI: | 10.1016/0167-2584(85)91082-5 |
| Popis: | Negative hydrogen ion formation is studied by scattering protons from a cesiated tungsten (110) surface. The primary energy ranges from 50 to 400 eV. The angle of incidence is 70° with respect to the surface normal. A maximum conversion efficiency H − (H − + H 0 ) of 67% is measured. The measurements can be described in terms of the probability model. The perturbation of the H − ion by the metal is described within first order perturbation theory. A reasonable agreement between theory and experiment is obtained. |
| Databáze: | OpenAIRE |
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