Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Physics |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600047 |
Resumo: | Photon stimulated ion desorption (PSID) from condensed carbon dioxide has been studied for photon excitation energies ranging from 93 to 193 eV. PSID studies have been performed at the Brazilian synchrotron light source (LNLS), Campinas, during a multi-bunch operation mode of the storage ring. The results showed that after photon excitation several ions desorbed from the CO2 films: C+ , O+ , CO+ and O2+. PSID experiments showed that ion desorption was enhanced only at the Si resonance excitations. When the thickness of the CO2 was ~ 500 L or higher, almost no desorption yield was observed. The study of the dependence of the relative partial ion yield on the photon excitation showed that the X-ray induced Electron Stimulated Desorption (XESD) mechanism has to be invoked to explain the origin of the desorbed ions in the energy region studied. |
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Brazilian Journal of Physics |
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Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiationPhoton stimulated ion desorption (PSID)Condensed carbon dioxideSynchrotron radiationX-ray induced Electron Stimulated Desorption (XESD)Photon stimulated ion desorption (PSID) from condensed carbon dioxide has been studied for photon excitation energies ranging from 93 to 193 eV. PSID studies have been performed at the Brazilian synchrotron light source (LNLS), Campinas, during a multi-bunch operation mode of the storage ring. The results showed that after photon excitation several ions desorbed from the CO2 films: C+ , O+ , CO+ and O2+. PSID experiments showed that ion desorption was enhanced only at the Si resonance excitations. When the thickness of the CO2 was ~ 500 L or higher, almost no desorption yield was observed. The study of the dependence of the relative partial ion yield on the photon excitation showed that the X-ray induced Electron Stimulated Desorption (XESD) mechanism has to be invoked to explain the origin of the desorbed ions in the energy region studied.Sociedade Brasileira de Física2006-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600047Brazilian Journal of Physics v.36 n.3b 2006reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332006000600047info:eu-repo/semantics/openAccessMota,Gunar V. S.Weibel,Daniel E.Araújo,Geovane S.Rocco,Maria Luiza M.eng2006-11-29T00:00:00Zoai:scielo:S0103-97332006000600047Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-11-29T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false |
dc.title.none.fl_str_mv |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
title |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
spellingShingle |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation Mota,Gunar V. S. Photon stimulated ion desorption (PSID) Condensed carbon dioxide Synchrotron radiation X-ray induced Electron Stimulated Desorption (XESD) |
title_short |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
title_full |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
title_fullStr |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
title_full_unstemmed |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
title_sort |
Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation |
author |
Mota,Gunar V. S. |
author_facet |
Mota,Gunar V. S. Weibel,Daniel E. Araújo,Geovane S. Rocco,Maria Luiza M. |
author_role |
author |
author2 |
Weibel,Daniel E. Araújo,Geovane S. Rocco,Maria Luiza M. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mota,Gunar V. S. Weibel,Daniel E. Araújo,Geovane S. Rocco,Maria Luiza M. |
dc.subject.por.fl_str_mv |
Photon stimulated ion desorption (PSID) Condensed carbon dioxide Synchrotron radiation X-ray induced Electron Stimulated Desorption (XESD) |
topic |
Photon stimulated ion desorption (PSID) Condensed carbon dioxide Synchrotron radiation X-ray induced Electron Stimulated Desorption (XESD) |
description |
Photon stimulated ion desorption (PSID) from condensed carbon dioxide has been studied for photon excitation energies ranging from 93 to 193 eV. PSID studies have been performed at the Brazilian synchrotron light source (LNLS), Campinas, during a multi-bunch operation mode of the storage ring. The results showed that after photon excitation several ions desorbed from the CO2 films: C+ , O+ , CO+ and O2+. PSID experiments showed that ion desorption was enhanced only at the Si resonance excitations. When the thickness of the CO2 was ~ 500 L or higher, almost no desorption yield was observed. The study of the dependence of the relative partial ion yield on the photon excitation showed that the X-ray induced Electron Stimulated Desorption (XESD) mechanism has to be invoked to explain the origin of the desorbed ions in the energy region studied. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600047 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600047 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-97332006000600047 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
dc.source.none.fl_str_mv |
Brazilian Journal of Physics v.36 n.3b 2006 reponame:Brazilian Journal of Physics instname:Sociedade Brasileira de Física (SBF) instacron:SBF |
instname_str |
Sociedade Brasileira de Física (SBF) |
instacron_str |
SBF |
institution |
SBF |
reponame_str |
Brazilian Journal of Physics |
collection |
Brazilian Journal of Physics |
repository.name.fl_str_mv |
Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF) |
repository.mail.fl_str_mv |
sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br |
_version_ |
1754734863358885888 |