Artículo
Charge exchange and x-ray emission cross sections for multiply charged ions colliding with H2O
Fecha de publicación:
02/2008
Editorial:
American Physical Society
Revista:
Physical Review A: Atomic, Molecular and Optical Physics
ISSN:
1050-2947
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Total and state selective nl-electron capture cross sections are presented for highly charged ions Z=4–10, 14, 18, and 26 colliding with water molecules. The energy range investigated was from 10 eV/amu v =0.02 a.u. to 100 keV/amu v=2 a.u.. An initialization for the 1B1 and 3A1 orbitals of the water molecule is introduced based on the one center expansion of Moccia and compared to our previous studies based on a hydrogenic approximation within the microcanonical ensemble. The Z dependence of the calculated total cross sections is in reasonable agreement with the recent data of Mawhorter et al. Phys. Rev. A 75, 032704 2007 and is improved over previous results. The energy dependence of the n- and l-level populations is investigated. The K-shell x-ray emission cross sections are determined by using the calculated state-selective electron capture results as input and then applying hydrogenic branching and cascading values for the photon emission. Our results compare favorably with experimental data from the KVI-Groningen, Jet Propulsion Laboratory and Lawrence Livermore National Laboratory groups.
Palabras clave:
Charge Exchange
,
Line Emission Cross Sections
,
Cometary X-Ray Emission
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Identificadores
Colecciones
Articulos(IFISUR)
Articulos de INSTITUTO DE FISICA DEL SUR
Articulos de INSTITUTO DE FISICA DEL SUR
Citación
Otranto, Sebastián; Olson, R. E.; Charge exchange and x-ray emission cross sections for multiply charged ions colliding with H2O; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 77; 2; 2-2008; 1-9; 022709
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