H2 dissociation by H+ and He2+ projectiles at intermediate energies
- Autores
- Martínez, Sergio Hernán; Bernardi, Guillermo Carlos; Focke, Pedro Rodolfo; Gonzalez, Alejandro Daniel; Suarez, Sergio Gabriel
- Año de publicación
- 2003
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We have investigated proton emission from dissociated H2 molecules after colliding with H+ and He2+ ions with energies 25, 50 and 100 keV amu-1. The energy spectra of protons have been obtained covering the angular range from 10° to 170° and fragment energies from 3-15 eV for He2+ projectiles and in the 0-15 eV range for H+ impact, respectively. Using the Franck-Condon approximation we were able to find the relative contributions for some dissociation channels (2pπu, 2sσg, 2pσu and Coulomb explosion (CE)). For He2+ projectiles we found that the momentum transfer to the target must be included in the model to obtain a better description of the experimental results. When compared to the H+ impact case, we observe for He2+ projectiles the enhancement of the CE channel due to higher capture probabilities. Differential cross sections as a function of emission angle were obtained to investigate the orientation dependence of the electronic processes leading to dissociation. Total cross sections are also estimated and compared to measurements from other laboratories.
Fil: Martínez, Sergio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Bernardi, Guillermo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Focke, Pedro Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Gonzalez, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Suarez, Sergio Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina - Materia
-
Atomic Collisions
Molecular Fragmentation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/72633
Ver los metadatos del registro completo
id |
CONICETDig_b42789e624f5f8762119fc20627f8b24 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/72633 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
H2 dissociation by H+ and He2+ projectiles at intermediate energiesMartínez, Sergio HernánBernardi, Guillermo CarlosFocke, Pedro RodolfoGonzalez, Alejandro DanielSuarez, Sergio GabrielAtomic CollisionsMolecular Fragmentationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have investigated proton emission from dissociated H2 molecules after colliding with H+ and He2+ ions with energies 25, 50 and 100 keV amu-1. The energy spectra of protons have been obtained covering the angular range from 10° to 170° and fragment energies from 3-15 eV for He2+ projectiles and in the 0-15 eV range for H+ impact, respectively. Using the Franck-Condon approximation we were able to find the relative contributions for some dissociation channels (2pπu, 2sσg, 2pσu and Coulomb explosion (CE)). For He2+ projectiles we found that the momentum transfer to the target must be included in the model to obtain a better description of the experimental results. When compared to the H+ impact case, we observe for He2+ projectiles the enhancement of the CE channel due to higher capture probabilities. Differential cross sections as a function of emission angle were obtained to investigate the orientation dependence of the electronic processes leading to dissociation. Total cross sections are also estimated and compared to measurements from other laboratories.Fil: Martínez, Sergio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Bernardi, Guillermo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Focke, Pedro Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Gonzalez, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Suarez, Sergio Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaIOP Publishing2003-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72633Martínez, Sergio Hernán; Bernardi, Guillermo Carlos; Focke, Pedro Rodolfo; Gonzalez, Alejandro Daniel; Suarez, Sergio Gabriel; H2 dissociation by H+ and He2+ projectiles at intermediate energies; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 36; 24; 12-2003; 4813-48260953-4075CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0953-4075/36/24/005info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/36/24/005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:49Zoai:ri.conicet.gov.ar:11336/72633instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:00:49.891CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
title |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
spellingShingle |
H2 dissociation by H+ and He2+ projectiles at intermediate energies Martínez, Sergio Hernán Atomic Collisions Molecular Fragmentation |
title_short |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
title_full |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
title_fullStr |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
title_full_unstemmed |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
title_sort |
H2 dissociation by H+ and He2+ projectiles at intermediate energies |
dc.creator.none.fl_str_mv |
Martínez, Sergio Hernán Bernardi, Guillermo Carlos Focke, Pedro Rodolfo Gonzalez, Alejandro Daniel Suarez, Sergio Gabriel |
author |
Martínez, Sergio Hernán |
author_facet |
Martínez, Sergio Hernán Bernardi, Guillermo Carlos Focke, Pedro Rodolfo Gonzalez, Alejandro Daniel Suarez, Sergio Gabriel |
author_role |
author |
author2 |
Bernardi, Guillermo Carlos Focke, Pedro Rodolfo Gonzalez, Alejandro Daniel Suarez, Sergio Gabriel |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Atomic Collisions Molecular Fragmentation |
topic |
Atomic Collisions Molecular Fragmentation |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We have investigated proton emission from dissociated H2 molecules after colliding with H+ and He2+ ions with energies 25, 50 and 100 keV amu-1. The energy spectra of protons have been obtained covering the angular range from 10° to 170° and fragment energies from 3-15 eV for He2+ projectiles and in the 0-15 eV range for H+ impact, respectively. Using the Franck-Condon approximation we were able to find the relative contributions for some dissociation channels (2pπu, 2sσg, 2pσu and Coulomb explosion (CE)). For He2+ projectiles we found that the momentum transfer to the target must be included in the model to obtain a better description of the experimental results. When compared to the H+ impact case, we observe for He2+ projectiles the enhancement of the CE channel due to higher capture probabilities. Differential cross sections as a function of emission angle were obtained to investigate the orientation dependence of the electronic processes leading to dissociation. Total cross sections are also estimated and compared to measurements from other laboratories. Fil: Martínez, Sergio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Bernardi, Guillermo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Focke, Pedro Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Gonzalez, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Suarez, Sergio Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina |
description |
We have investigated proton emission from dissociated H2 molecules after colliding with H+ and He2+ ions with energies 25, 50 and 100 keV amu-1. The energy spectra of protons have been obtained covering the angular range from 10° to 170° and fragment energies from 3-15 eV for He2+ projectiles and in the 0-15 eV range for H+ impact, respectively. Using the Franck-Condon approximation we were able to find the relative contributions for some dissociation channels (2pπu, 2sσg, 2pσu and Coulomb explosion (CE)). For He2+ projectiles we found that the momentum transfer to the target must be included in the model to obtain a better description of the experimental results. When compared to the H+ impact case, we observe for He2+ projectiles the enhancement of the CE channel due to higher capture probabilities. Differential cross sections as a function of emission angle were obtained to investigate the orientation dependence of the electronic processes leading to dissociation. Total cross sections are also estimated and compared to measurements from other laboratories. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-12 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/72633 Martínez, Sergio Hernán; Bernardi, Guillermo Carlos; Focke, Pedro Rodolfo; Gonzalez, Alejandro Daniel; Suarez, Sergio Gabriel; H2 dissociation by H+ and He2+ projectiles at intermediate energies; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 36; 24; 12-2003; 4813-4826 0953-4075 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/72633 |
identifier_str_mv |
Martínez, Sergio Hernán; Bernardi, Guillermo Carlos; Focke, Pedro Rodolfo; Gonzalez, Alejandro Daniel; Suarez, Sergio Gabriel; H2 dissociation by H+ and He2+ projectiles at intermediate energies; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 36; 24; 12-2003; 4813-4826 0953-4075 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0953-4075/36/24/005 info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/36/24/005 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1842269661637378048 |
score |
13.13397 |