Production of excitons in grazing collisions of protons with LiF surfaces: An onion model
In this work we evaluate the production of excitons of a lithium fluoride crystal induced by proton impact in the intermediate and high energy regime (from 100 keV to 1 MeV). A simple model is proposed to account for the influence of the Coulomb grid of the target by dressing crystal ions to transfo...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v84_n6_p_Miraglia http://hdl.handle.net/20.500.12110/paper_10502947_v84_n6_p_Miraglia |
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paper:paper_10502947_v84_n6_p_Miraglia2023-06-08T16:02:42Z Production of excitons in grazing collisions of protons with LiF surfaces: An onion model Crystal ions Distorted waves Eikonal Inelastic transitions Intermediate and high energies Lithium fluoride crystals Proton impact Stopping power Total cross section Lithium Protons Excitons In this work we evaluate the production of excitons of a lithium fluoride crystal induced by proton impact in the intermediate and high energy regime (from 100 keV to 1 MeV). A simple model is proposed to account for the influence of the Coulomb grid of the target by dressing crystal ions to transform them in what we call onions. The excited states of these onions can be interpreted as excitons. Within this model, total cross section and stopping power are calculated by using the first Born and the continuum distorted-wave (CDW) eikonal initial-state (EIS) approximations. We found that between 7 and 30 excitons per incident proton are produced in grazing collisions with LiF surfaces, becoming a relevant mechanism of inelastic transitions. © 2011 American Physical Society. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v84_n6_p_Miraglia http://hdl.handle.net/20.500.12110/paper_10502947_v84_n6_p_Miraglia |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Crystal ions Distorted waves Eikonal Inelastic transitions Intermediate and high energies Lithium fluoride crystals Proton impact Stopping power Total cross section Lithium Protons Excitons |
| spellingShingle |
Crystal ions Distorted waves Eikonal Inelastic transitions Intermediate and high energies Lithium fluoride crystals Proton impact Stopping power Total cross section Lithium Protons Excitons Production of excitons in grazing collisions of protons with LiF surfaces: An onion model |
| topic_facet |
Crystal ions Distorted waves Eikonal Inelastic transitions Intermediate and high energies Lithium fluoride crystals Proton impact Stopping power Total cross section Lithium Protons Excitons |
| description |
In this work we evaluate the production of excitons of a lithium fluoride crystal induced by proton impact in the intermediate and high energy regime (from 100 keV to 1 MeV). A simple model is proposed to account for the influence of the Coulomb grid of the target by dressing crystal ions to transform them in what we call onions. The excited states of these onions can be interpreted as excitons. Within this model, total cross section and stopping power are calculated by using the first Born and the continuum distorted-wave (CDW) eikonal initial-state (EIS) approximations. We found that between 7 and 30 excitons per incident proton are produced in grazing collisions with LiF surfaces, becoming a relevant mechanism of inelastic transitions. © 2011 American Physical Society. |
| title |
Production of excitons in grazing collisions of protons with LiF surfaces: An onion model |
| title_short |
Production of excitons in grazing collisions of protons with LiF surfaces: An onion model |
| title_full |
Production of excitons in grazing collisions of protons with LiF surfaces: An onion model |
| title_fullStr |
Production of excitons in grazing collisions of protons with LiF surfaces: An onion model |
| title_full_unstemmed |
Production of excitons in grazing collisions of protons with LiF surfaces: An onion model |
| title_sort |
production of excitons in grazing collisions of protons with lif surfaces: an onion model |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v84_n6_p_Miraglia http://hdl.handle.net/20.500.12110/paper_10502947_v84_n6_p_Miraglia |
| _version_ |
1768546032563519488 |