Electron emission spectra by charging analysis

The energy spectra of electrons emitted due to electron irradiation are essential in relevant scientific and technological fields. While the energy spectra of conductor materials are generally acquired using hemispherical electron energy analyzers, technical difficulties remain in the acquisition of...

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Main Authors: L. Olano, I. Montero
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Results in Physics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379720301868
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author L. Olano
I. Montero
author_facet L. Olano
I. Montero
author_sort L. Olano
collection DOAJ
description The energy spectra of electrons emitted due to electron irradiation are essential in relevant scientific and technological fields. While the energy spectra of conductor materials are generally acquired using hemispherical electron energy analyzers, technical difficulties remain in the acquisition of these spectra when dielectric materials are involved, as these materials charge due to electron irradiation. In this work, the energy spectra were obtained taking advantage of the unavoidable effect of charging on the energy of the secondary electrons emitted from non-conductive surfaces. A novel time-resolved low-dose irradiation method was applied for the first time to obtain the energy spectra of copper, silver, and gold samples, with the results compared with the spectra measured by the hemispherical energy analyzer. This new method could be promising for obtaining the energy spectra of dielectric materials.
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spelling doaj.art-d02e8b53bf8949c9b0b29a13c3f2e9e12022-12-22T01:23:55ZengElsevierResults in Physics2211-37972020-06-0117103050Electron emission spectra by charging analysisL. Olano0I. Montero1Instituto de Ciencia de Materiales de Madrid, CSIC, C/Sor Juana Inés de la Cruz 3, 28049 Madrid, SpainCorresponding author.; Instituto de Ciencia de Materiales de Madrid, CSIC, C/Sor Juana Inés de la Cruz 3, 28049 Madrid, SpainThe energy spectra of electrons emitted due to electron irradiation are essential in relevant scientific and technological fields. While the energy spectra of conductor materials are generally acquired using hemispherical electron energy analyzers, technical difficulties remain in the acquisition of these spectra when dielectric materials are involved, as these materials charge due to electron irradiation. In this work, the energy spectra were obtained taking advantage of the unavoidable effect of charging on the energy of the secondary electrons emitted from non-conductive surfaces. A novel time-resolved low-dose irradiation method was applied for the first time to obtain the energy spectra of copper, silver, and gold samples, with the results compared with the spectra measured by the hemispherical energy analyzer. This new method could be promising for obtaining the energy spectra of dielectric materials.http://www.sciencedirect.com/science/article/pii/S2211379720301868Electron energy spectraSecondary electron emissionSurface chargingElectron irradiation
spellingShingle L. Olano
I. Montero
Electron emission spectra by charging analysis
Results in Physics
Electron energy spectra
Secondary electron emission
Surface charging
Electron irradiation
title Electron emission spectra by charging analysis
title_full Electron emission spectra by charging analysis
title_fullStr Electron emission spectra by charging analysis
title_full_unstemmed Electron emission spectra by charging analysis
title_short Electron emission spectra by charging analysis
title_sort electron emission spectra by charging analysis
topic Electron energy spectra
Secondary electron emission
Surface charging
Electron irradiation
url http://www.sciencedirect.com/science/article/pii/S2211379720301868
work_keys_str_mv AT lolano electronemissionspectrabycharginganalysis
AT imontero electronemissionspectrabycharginganalysis