Bound-electron capture from surface atoms by heavy projectiles at grazing collisions
The capture of electrons bound to the atoms of a crystal surface by grazing heavy projectiles is studied in the high-energy regime. The eikonal impulse approximation is used to calculate the capture atomic probabilities, which are then folded with the distance-to-the-surface distribution given by pl...
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todo:paper_10502947_v50_n3_p2425_Gravielle2023-10-03T15:58:58Z Bound-electron capture from surface atoms by heavy projectiles at grazing collisions Gravielle, M.S. Miraglia, J.E. The capture of electrons bound to the atoms of a crystal surface by grazing heavy projectiles is studied in the high-energy regime. The eikonal impulse approximation is used to calculate the capture atomic probabilities, which are then folded with the distance-to-the-surface distribution given by planar channeling theory. Good agreement is found with experiments at high energies. We also study the influence of the rugosity or surface irregularities formed by adsorbed atoms. It is concluded that, in the high-energy tail, the capture of bound electrons is more important that capture from the free-electron gas. It is found that the closest distance to the surface and the rugosity play decisive roles. © 1994 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10502947_v50_n3_p2425_Gravielle |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The capture of electrons bound to the atoms of a crystal surface by grazing heavy projectiles is studied in the high-energy regime. The eikonal impulse approximation is used to calculate the capture atomic probabilities, which are then folded with the distance-to-the-surface distribution given by planar channeling theory. Good agreement is found with experiments at high energies. We also study the influence of the rugosity or surface irregularities formed by adsorbed atoms. It is concluded that, in the high-energy tail, the capture of bound electrons is more important that capture from the free-electron gas. It is found that the closest distance to the surface and the rugosity play decisive roles. © 1994 The American Physical Society. |
| format |
JOUR |
| author |
Gravielle, M.S. Miraglia, J.E. |
| spellingShingle |
Gravielle, M.S. Miraglia, J.E. Bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| author_facet |
Gravielle, M.S. Miraglia, J.E. |
| author_sort |
Gravielle, M.S. |
| title |
Bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| title_short |
Bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| title_full |
Bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| title_fullStr |
Bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| title_full_unstemmed |
Bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| title_sort |
bound-electron capture from surface atoms by heavy projectiles at grazing collisions |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v50_n3_p2425_Gravielle |
| work_keys_str_mv |
AT graviellems boundelectroncapturefromsurfaceatomsbyheavyprojectilesatgrazingcollisions AT miragliaje boundelectroncapturefromsurfaceatomsbyheavyprojectilesatgrazingcollisions |
| _version_ |
1807322175633358848 |