Total cross section measurements for electron scattering from dichloromethane

Using our magnetically confined electron transmission apparatus, we report the results of total cross sections (TCSs) for electron scattering from dichloromethane (CH2C12). The energy range of this study is 1-300 eV. Wherever possible, the present data are compared to earlier measured TCSs of Wan et...

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Detalles Bibliográficos
Autores: Lozano, A. I., Alvarez, L., Blanco Ramos, Francisco, Brunger, M. J., García, G.
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/13276
Acceso en línea:https://hdl.handle.net/20.500.14352/13276
Access Level:acceso abierto
Palabra clave:539.1
Chloromethanes
Transport
Física nuclear
2207 Física Atómica y Nuclear
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oai_identifier_str oai:docta.ucm.es:20.500.14352/13276
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repository_id_str
spelling Total cross section measurements for electron scattering from dichloromethaneLozano, A. I.Alvarez, L.Blanco Ramos, FranciscoBrunger, M. J.García, G.539.1ChloromethanesTransportFísica nuclear2207 Física Atómica y NuclearUsing our magnetically confined electron transmission apparatus, we report the results of total cross sections (TCSs) for electron scattering from dichloromethane (CH2C12). The energy range of this study is 1-300 eV. Wherever possible, the present data are compared to earlier measured TCSs of Wan et al. [J. Chem. Phys. 94, 1865 (1991)] and Karwasz et al. [Phys. Rev. A 59, 1341 (1999)] and to the corresponding theoretical independent atom model with screening corrected additivity rule and interference term (IAM-SCAR+I) results of Krupa et al. [Phys. Rev. A 97, 042702 (2018)] and a spherical complex optical potential formulation calculation of Naghma et al. [J. Electron Spectrosc. Relat. Phenom. 193, 48 (2014)]. Within their respective uncertainties, the present TCS and those of Karwasz et al. are found to be in very good agreement over their common energy range. However, agreement with the results of Wan et al. is quite poor. The importance of the experimentally inherent `missing angle' effect (see later) on the measured TCS is investigated and found to be significant at the lower energies studied. Indeed, when this effect is accounted for, agreement between our measured TCSs and the corrected IAM-SCAR+I+rotations calculation results are, for energies above about 3 eV, in good accord (to better than 8%). Finally, we observe two o-* shape resonances, consistent with the earlier electron transmission spectroscopy results of Burrow et al. [J. Chem. Phys. 77, 2699 (1982)], at about 2.8 eV and 4.4 eV incident electron energy, in our measured TCS. Published by AIP Publishing.Amer Inst PhysicsUniversidad Complutense de Madrid20182018-12-2820182018-12-28journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/13276reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/132762026-06-02T12:44:21Z
dc.title.none.fl_str_mv Total cross section measurements for electron scattering from dichloromethane
title Total cross section measurements for electron scattering from dichloromethane
spellingShingle Total cross section measurements for electron scattering from dichloromethane
Lozano, A. I.
539.1
Chloromethanes
Transport
Física nuclear
2207 Física Atómica y Nuclear
title_short Total cross section measurements for electron scattering from dichloromethane
title_full Total cross section measurements for electron scattering from dichloromethane
title_fullStr Total cross section measurements for electron scattering from dichloromethane
title_full_unstemmed Total cross section measurements for electron scattering from dichloromethane
title_sort Total cross section measurements for electron scattering from dichloromethane
dc.creator.none.fl_str_mv Lozano, A. I.
Alvarez, L.
Blanco Ramos, Francisco
Brunger, M. J.
García, G.
author Lozano, A. I.
author_facet Lozano, A. I.
Alvarez, L.
Blanco Ramos, Francisco
Brunger, M. J.
García, G.
author_role author
author2 Alvarez, L.
Blanco Ramos, Francisco
Brunger, M. J.
García, G.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 539.1
Chloromethanes
Transport
Física nuclear
2207 Física Atómica y Nuclear
topic 539.1
Chloromethanes
Transport
Física nuclear
2207 Física Atómica y Nuclear
description Using our magnetically confined electron transmission apparatus, we report the results of total cross sections (TCSs) for electron scattering from dichloromethane (CH2C12). The energy range of this study is 1-300 eV. Wherever possible, the present data are compared to earlier measured TCSs of Wan et al. [J. Chem. Phys. 94, 1865 (1991)] and Karwasz et al. [Phys. Rev. A 59, 1341 (1999)] and to the corresponding theoretical independent atom model with screening corrected additivity rule and interference term (IAM-SCAR+I) results of Krupa et al. [Phys. Rev. A 97, 042702 (2018)] and a spherical complex optical potential formulation calculation of Naghma et al. [J. Electron Spectrosc. Relat. Phenom. 193, 48 (2014)]. Within their respective uncertainties, the present TCS and those of Karwasz et al. are found to be in very good agreement over their common energy range. However, agreement with the results of Wan et al. is quite poor. The importance of the experimentally inherent `missing angle' effect (see later) on the measured TCS is investigated and found to be significant at the lower energies studied. Indeed, when this effect is accounted for, agreement between our measured TCSs and the corrected IAM-SCAR+I+rotations calculation results are, for energies above about 3 eV, in good accord (to better than 8%). Finally, we observe two o-* shape resonances, consistent with the earlier electron transmission spectroscopy results of Burrow et al. [J. Chem. Phys. 77, 2699 (1982)], at about 2.8 eV and 4.4 eV incident electron energy, in our measured TCS. Published by AIP Publishing.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-12-28
2018
2018-12-28
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/13276
url https://hdl.handle.net/20.500.14352/13276
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Amer Inst Physics
publisher.none.fl_str_mv Amer Inst Physics
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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