Artículo
Energy Threshold in multiple ionization by electron or positron impact
Fecha de publicación:
04/2015
Editorial:
IOP Publishing
Revista:
Journal of physics conference series
ISSN:
1742-6588
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The energy threshold for the formation of highly charged ions is experimentallywell-known and measured. For single ionization, it is the binding energy of the outermost electrons. For multiple ionization, the ionization begins at impact energies much larger than the theoretically expected ones. In this contribution we present a simple expression for the energy threshold for multiple ionization by electron or positron impact. It was obtained as the mean value of the energy transferred to each ionized electron by using Thompson classical approximation. Present results reproduce quite well the experimental thresholds. Moreover, theinclusion of these values in the theoretical multiple ionization cross sections allows describing rather well the experimental data for single up to sextuple ionization of rare gases.
Palabras clave:
Multipleionization
,
Ionization
,
Threshold
,
Electron
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Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Montanari, Claudia Carmen; Miraglia, Jorge Esteban; Energy Threshold in multiple ionization by electron or positron impact; IOP Publishing; Journal of physics conference series; 583; 1; 4-2015; 1-5; 012018
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