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Abstract:

We present theoretical single to quintuple ionization cross sections for Ne, Ar, Kr and Xe bombarded by H+ and He+. Post-collisional contributions due to Auger-like processes are taken into account using recent photoionization data. The present continuum distorted wave-eikonal initial state (CDW-EIS) and first Born approximation results are compared with the experimental data available in the energy range of 50-10 000 keV amu-1 for H+ on Ne and Ar, and 50-1000 keV amu -1 for the other cases. In general, the combination of the CDW-EIS with the post-collisional branching ratios describes well the multiple ionization data above 300 keV amu-1, showing a clear tendency to coalesce with the first Born approximation at high energies. The surprising result of this work is the good performance of the first Born approximation which describes rather well the experimental data of double and triple ionization, even in the intermediate energy range (50-300 keV amu-1), where direct ionization is the dominant contribution. © 2010 IOP Publishing Ltd.

Registro:

Documento: Artículo
Título:CDW-EIS calculations for multiple ionization of Ne, Ar, Kr and Xe by the impact of H+ and He+, including post-collisional electron emission
Autor:Montanari, C.C.; Montenegro, E.C.; Miraglia, J.E.
Filiación:Instituto de Astronomìa y Fìsica del Espacio, casilla de correo 67 ,Asucursal 28, C1428EGA, Buenos Aires, Argentina
Departamento de Fìsica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Instituto de Fìsica, Universidade Federal de Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro 21945-970, RJ, Brazil
Palabras clave:Branching ratio; Collisional contributions; Continuum distorted wave-eikonal initial state; Dominant contributions; Energy ranges; Experimental data; First Born approximation; High energy; Intermediate energy range; Ionization cross section; Multiple ionization; Born approximation; Charge density waves; Electrochemical corrosion; High energy physics; Krypton; Neon; Particle detectors; Quantum theory; Xenon; Ionization
Año:2010
Volumen:43
Número:16
DOI: http://dx.doi.org/10.1088/0953-4075/43/16/165201
Título revista:Journal of Physics B: Atomic, Molecular and Optical Physics
Título revista abreviado:J Phys B At Mol Opt Phys
ISSN:09534075
CODEN:JPAPE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v43_n16_p_Montanari

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Citas:

---------- APA ----------
Montanari, C.C., Montenegro, E.C. & Miraglia, J.E. (2010) . CDW-EIS calculations for multiple ionization of Ne, Ar, Kr and Xe by the impact of H+ and He+, including post-collisional electron emission. Journal of Physics B: Atomic, Molecular and Optical Physics, 43(16).
http://dx.doi.org/10.1088/0953-4075/43/16/165201
---------- CHICAGO ----------
Montanari, C.C., Montenegro, E.C., Miraglia, J.E. "CDW-EIS calculations for multiple ionization of Ne, Ar, Kr and Xe by the impact of H+ and He+, including post-collisional electron emission" . Journal of Physics B: Atomic, Molecular and Optical Physics 43, no. 16 (2010).
http://dx.doi.org/10.1088/0953-4075/43/16/165201
---------- MLA ----------
Montanari, C.C., Montenegro, E.C., Miraglia, J.E. "CDW-EIS calculations for multiple ionization of Ne, Ar, Kr and Xe by the impact of H+ and He+, including post-collisional electron emission" . Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 43, no. 16, 2010.
http://dx.doi.org/10.1088/0953-4075/43/16/165201
---------- VANCOUVER ----------
Montanari, C.C., Montenegro, E.C., Miraglia, J.E. CDW-EIS calculations for multiple ionization of Ne, Ar, Kr and Xe by the impact of H+ and He+, including post-collisional electron emission. J Phys B At Mol Opt Phys. 2010;43(16).
http://dx.doi.org/10.1088/0953-4075/43/16/165201