Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces

Mostrar otras versiones (1)

The influence of microgeometries on the Secondary Electron Yield (SEY) of surfaces is investigated. Laser written structures of different aspect ratio (height to width) on a copper surface tuned the SEY of the surface and reduced its value to less than unity. The aspect ratio of microstructures was...

Descripción completa

Detalles Bibliográficos
Autores principales: Bajek, D, Wackerow, S, Zanin, D A, Baudin, L, Bogdanowicz, K, Valdivieso, E Garcia-Tabares, Calatroni, S, Di Girolamo, B, Sitko, M, Himmerlich, M, Taborelli, M, Chiggiato, P, Abdolvand, A
Lenguaje:eng
Publicado: 2020
Materias:
Physics in General
Acceso en línea:https://dx.doi.org/10.1038/s41598-019-57160-w
http://cds.cern.ch/record/2707196
_version_ 1780964987824504832
author Bajek, D
Wackerow, S
Zanin, D A
Baudin, L
Bogdanowicz, K
Valdivieso, E Garcia-Tabares
Calatroni, S
Di Girolamo, B
Sitko, M
Himmerlich, M
Taborelli, M
Chiggiato, P
Abdolvand, A
author_facet Bajek, D
Wackerow, S
Zanin, D A
Baudin, L
Bogdanowicz, K
Valdivieso, E Garcia-Tabares
Calatroni, S
Di Girolamo, B
Sitko, M
Himmerlich, M
Taborelli, M
Chiggiato, P
Abdolvand, A
author_sort Bajek, D
collection CERN
description The influence of microgeometries on the Secondary Electron Yield (SEY) of surfaces is investigated. Laser written structures of different aspect ratio (height to width) on a copper surface tuned the SEY of the surface and reduced its value to less than unity. The aspect ratio of microstructures was methodically controlled by varying the laser parameters. The results obtained corroborate a recent theoretical model of SEY reduction as a function of the aspect ratio of microstructures. Nanostructures - which are formed inside the microstructures during the interaction with the laser beam - provided further reduction in SEY comparable to that obtained in the simulation of structures which were coated with an absorptive layer suppressing secondary electron emission.
id oai-inspirehep.net-1776146
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling oai-inspirehep.net-17761462020-02-06T16:42:06Zdoi:10.1038/s41598-019-57160-whttp://cds.cern.ch/record/2707196engBajek, DWackerow, SZanin, D ABaudin, LBogdanowicz, KValdivieso, E Garcia-TabaresCalatroni, SDi Girolamo, BSitko, MHimmerlich, MTaborelli, MChiggiato, PAbdolvand, ARole of surface microgeometries on electron escape probability and secondary electron yield of metal surfacesPhysics in GeneralThe influence of microgeometries on the Secondary Electron Yield (SEY) of surfaces is investigated. Laser written structures of different aspect ratio (height to width) on a copper surface tuned the SEY of the surface and reduced its value to less than unity. The aspect ratio of microstructures was methodically controlled by varying the laser parameters. The results obtained corroborate a recent theoretical model of SEY reduction as a function of the aspect ratio of microstructures. Nanostructures - which are formed inside the microstructures during the interaction with the laser beam - provided further reduction in SEY comparable to that obtained in the simulation of structures which were coated with an absorptive layer suppressing secondary electron emission.oai:inspirehep.net:17761462020
spellingShingle Physics in General
Bajek, D
Wackerow, S
Zanin, D A
Baudin, L
Bogdanowicz, K
Valdivieso, E Garcia-Tabares
Calatroni, S
Di Girolamo, B
Sitko, M
Himmerlich, M
Taborelli, M
Chiggiato, P
Abdolvand, A
Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
title Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
title_full Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
title_fullStr Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
title_full_unstemmed Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
title_short Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
title_sort role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces
topic Physics in General
url https://dx.doi.org/10.1038/s41598-019-57160-w
http://cds.cern.ch/record/2707196
work_keys_str_mv AT bajekd roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT wackerows roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT zaninda roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT baudinl roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT bogdanowiczk roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT valdiviesoegarciatabares roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT calatronis roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT digirolamob roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT sitkom roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT himmerlichm roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT taborellim roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT chiggiatop roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces
AT abdolvanda roleofsurfacemicrogeometriesonelectronescapeprobabilityandsecondaryelectronyieldofmetalsurfaces

Ejemplares similares