Electron-impact multiple ionization of Ne, Ar, Kr and Xe

This work describes the multiple ionization cross sections of rare gases by electron-impact. We pay special attention to the high energy region (0.1-10) where the direct ionization is a minor contribution and the post-collisional electron emission dominates the final target charge state. We report h...

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Autores principales: Montanari, C.C., Miraglia, J.E.
Formato: JOUR
Materias:
electron
multiple ionization
post-colisional
Electrons
High energy physics
Continuum distorted waves
Electron-impact ionization cross sections
First Born approximation
Ionization cross section
Multiple ionization
Total ionization cross sections
Trajectory correction
Impact ionization
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09534075_v47_n10_p_Montanari
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09534075_v47_n10_p_Montanari
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spelling todo:paper_09534075_v47_n10_p_Montanari2023-10-03T15:51:05Z Electron-impact multiple ionization of Ne, Ar, Kr and Xe Montanari, C.C. Miraglia, J.E. electron multiple ionization post-colisional Electrons High energy physics Continuum distorted waves Electron-impact ionization cross sections First Born approximation Ionization cross section Multiple ionization post-colisional Total ionization cross sections Trajectory correction Impact ionization This work describes the multiple ionization cross sections of rare gases by electron-impact. We pay special attention to the high energy region (0.1-10) where the direct ionization is a minor contribution and the post-collisional electron emission dominates the final target charge state. We report here electron-impact single to sextuple ionization cross sections and total ionization cross sections including direct and post-collisional processes, even in the total values. We use the continuum distorted wave and the first Born approximations adapted to describe light-particle impact, i.e. energy, mass and trajectory corrections are incorporated, the latter by considering the electron-target potential and by using the Abel transformation. Auger-type post-collisional contributions are included in the multinomial expansion through experimental branching ratios after single ionization events. Tabulations of these experimental branching ratios for all the orbitals of the four targets are included. Present results are compared with the large amount of electron-impact experimental data available. We have obtained a good description of the multiple-ionization measurements at high energies, where the post-collisional ionization dominates. At intermediate energies, our theoretical results show the correct tendency, with the electron-impact ionization cross sections being far below the proton-impact ones. © 2014 IOP Publishing Ltd. Fil:Montanari, C.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Miraglia, J.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09534075_v47_n10_p_Montanari
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic electron
multiple ionization
post-colisional
Electrons
High energy physics
Continuum distorted waves
Electron-impact ionization cross sections
First Born approximation
Ionization cross section
Multiple ionization
post-colisional
Total ionization cross sections
Trajectory correction
Impact ionization
spellingShingle electron
multiple ionization
post-colisional
Electrons
High energy physics
Continuum distorted waves
Electron-impact ionization cross sections
First Born approximation
Ionization cross section
Multiple ionization
post-colisional
Total ionization cross sections
Trajectory correction
Impact ionization
Montanari, C.C.
Miraglia, J.E.
Electron-impact multiple ionization of Ne, Ar, Kr and Xe
topic_facet electron
multiple ionization
post-colisional
Electrons
High energy physics
Continuum distorted waves
Electron-impact ionization cross sections
First Born approximation
Ionization cross section
Multiple ionization
post-colisional
Total ionization cross sections
Trajectory correction
Impact ionization
description This work describes the multiple ionization cross sections of rare gases by electron-impact. We pay special attention to the high energy region (0.1-10) where the direct ionization is a minor contribution and the post-collisional electron emission dominates the final target charge state. We report here electron-impact single to sextuple ionization cross sections and total ionization cross sections including direct and post-collisional processes, even in the total values. We use the continuum distorted wave and the first Born approximations adapted to describe light-particle impact, i.e. energy, mass and trajectory corrections are incorporated, the latter by considering the electron-target potential and by using the Abel transformation. Auger-type post-collisional contributions are included in the multinomial expansion through experimental branching ratios after single ionization events. Tabulations of these experimental branching ratios for all the orbitals of the four targets are included. Present results are compared with the large amount of electron-impact experimental data available. We have obtained a good description of the multiple-ionization measurements at high energies, where the post-collisional ionization dominates. At intermediate energies, our theoretical results show the correct tendency, with the electron-impact ionization cross sections being far below the proton-impact ones. © 2014 IOP Publishing Ltd.
format JOUR
author Montanari, C.C.
Miraglia, J.E.
author_facet Montanari, C.C.
Miraglia, J.E.
author_sort Montanari, C.C.
title Electron-impact multiple ionization of Ne, Ar, Kr and Xe
title_short Electron-impact multiple ionization of Ne, Ar, Kr and Xe
title_full Electron-impact multiple ionization of Ne, Ar, Kr and Xe
title_fullStr Electron-impact multiple ionization of Ne, Ar, Kr and Xe
title_full_unstemmed Electron-impact multiple ionization of Ne, Ar, Kr and Xe
title_sort electron-impact multiple ionization of ne, ar, kr and xe
url http://hdl.handle.net/20.500.12110/paper_09534075_v47_n10_p_Montanari
work_keys_str_mv AT montanaricc electronimpactmultipleionizationofnearkrandxe
AT miragliaje electronimpactmultipleionizationofnearkrandxe
_version_ 1807322889581494272

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