Information About TS-1 and TS-2 Double Ionization Mechanisms for Positron and Electron Impact Ionization of Argon

Jared M. Gavin; O. G. de Lucio; Robert D. DuBois

doi:10.1016/j.nimb.2008.10.076

Information About TS-1 and TS-2 Double Ionization Mechanisms for Positron and Electron Impact Ionization of Argon

Jared M. Gavin
, O. G. de Lucio
, Robert D. DuBois

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Ejected electron angular distributions are measured for single and double ionization of argon by 500 eV positron and electron impact. Double to single ionization ratios show marked differences as a function of projectile charge. Combinations of the positron and electron data and a simple double ionization model are used to obtain differential information about the TS-1 and TS-2 mechanisms. Our analysis suggests that both mechanisms contribute roughly equally to the emission of two electrons and that interference between the two mechanisms significantly alters the ejected electron spectra.

Original language	American English
Journal	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
DOIs	https://doi.org/10.1016/j.nimb.2008.10.076
State	Published - Jan 1 2009

Keywords

Electron
Ionization
Positron
TS-1
TS-2

Disciplines

Physics

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10.1016/j.nimb.2008.10.076License: Unspecified

https://doi.org/10.1016/j.nimb.2008.10.076

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title = "Information About TS-1 and TS-2 Double Ionization Mechanisms for Positron and Electron Impact Ionization of Argon",

abstract = " Ejected electron angular distributions are measured for single and double ionization of argon by 500 eV positron and electron impact. Double to single ionization ratios show marked differences as a function of projectile charge. Combinations of the positron and electron data and a simple double ionization model are used to obtain differential information about the TS-1 and TS-2 mechanisms. Our analysis suggests that both mechanisms contribute roughly equally to the emission of two electrons and that interference between the two mechanisms significantly alters the ejected electron spectra.",

keywords = "Electron, Ionization, Positron, TS-1, TS-2",

author = "Gavin, \{Jared M.\} and \{de Lucio\}, \{O. G.\} and DuBois, \{Robert D.\}",

year = "2009",

month = jan,

day = "1",

doi = "10.1016/j.nimb.2008.10.076",

language = "American English",

journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",

}

TY - JOUR

T1 - Information About TS-1 and TS-2 Double Ionization Mechanisms for Positron and Electron Impact Ionization of Argon

AU - Gavin, Jared M.

AU - de Lucio, O. G.

AU - DuBois, Robert D.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - Ejected electron angular distributions are measured for single and double ionization of argon by 500 eV positron and electron impact. Double to single ionization ratios show marked differences as a function of projectile charge. Combinations of the positron and electron data and a simple double ionization model are used to obtain differential information about the TS-1 and TS-2 mechanisms. Our analysis suggests that both mechanisms contribute roughly equally to the emission of two electrons and that interference between the two mechanisms significantly alters the ejected electron spectra.

AB - Ejected electron angular distributions are measured for single and double ionization of argon by 500 eV positron and electron impact. Double to single ionization ratios show marked differences as a function of projectile charge. Combinations of the positron and electron data and a simple double ionization model are used to obtain differential information about the TS-1 and TS-2 mechanisms. Our analysis suggests that both mechanisms contribute roughly equally to the emission of two electrons and that interference between the two mechanisms significantly alters the ejected electron spectra.

KW - Electron

KW - Ionization

KW - Positron

KW - TS-1

KW - TS-2

UR - https://scholarsmine.mst.edu/phys_facwork/139

UR - https://doi.org/10.1016/j.nimb.2008.10.076

U2 - 10.1016/j.nimb.2008.10.076

DO - 10.1016/j.nimb.2008.10.076

M3 - Article

JO - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

ER -

Information About TS-1 and TS-2 Double Ionization Mechanisms for Positron and Electron Impact Ionization of Argon

Abstract

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