Redistribution of high energy alpha particles due to sawteeth with partial reconnection

Autores
Farengo, Ricardo; Ferrari, Hugo Emilio; Garcia Martinez, Pablo Luis; Firpo, M. C.; Ettoumi, W.; Lifschitz, A. F.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The redistribution of high energy alpha particles due to internal kink modes is studied in plasmas with ITER-like parameters. The exact particle trajectories in the total fields, equilibrium plus perturbation, are calculated. The equilibrium magnetic field is obtained by analytically solving the Grad–Shafranov equation and the perturbed electric and magnetic fields are reconstructed using ideal MHD and the experimental information about the displacement eigenfunction. The (1, 1), (2, 2) and (2, 1) modes are included and the effect of changing their amplitude and frequency is determined. The results show that if the conditions are similar to those reported in Igochine et al (2007 Nucl. Fusion 47 23), the peak density of counter-passing particles decreases between 25% and 40% (depending on the energy); the peak of the trapped particles density shifts outwards by approximately 10% of the minor radius and the total on axis density decreases by more than 25%. This redistribution occurs inside the q = 1 surface. The addition of a (2, 1) mode, which can produce the stochastization of the magnetic field, significantly increases particle redistribution and allows particles to spread beyond the q = 1 surface. Different groups of particles (co-passing, counter-passing, trapped) respond differently to the perturbations.
Fil: Farengo, Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Ferrari, Hugo Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Garcia Martinez, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Firpo, M. C.. Centre National de la Recherche Scientifique; Francia
Fil: Ettoumi, W.. Centre National de la Recherche Scientifique; Francia
Fil: Lifschitz, A. F.. Centre National de la Recherche Scientifique; Francia
Materia
Iter
Sawtooth
Particles
Redistribution
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/17701
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/17701
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Redistribution of high energy alpha particles due to sawteeth with partial reconnectionFarengo, RicardoFerrari, Hugo EmilioGarcia Martinez, Pablo LuisFirpo, M. C.Ettoumi, W.Lifschitz, A. F.IterSawtoothParticlesRedistributionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The redistribution of high energy alpha particles due to internal kink modes is studied in plasmas with ITER-like parameters. The exact particle trajectories in the total fields, equilibrium plus perturbation, are calculated. The equilibrium magnetic field is obtained by analytically solving the Grad–Shafranov equation and the perturbed electric and magnetic fields are reconstructed using ideal MHD and the experimental information about the displacement eigenfunction. The (1, 1), (2, 2) and (2, 1) modes are included and the effect of changing their amplitude and frequency is determined. The results show that if the conditions are similar to those reported in Igochine et al (2007 Nucl. Fusion 47 23), the peak density of counter-passing particles decreases between 25% and 40% (depending on the energy); the peak of the trapped particles density shifts outwards by approximately 10% of the minor radius and the total on axis density decreases by more than 25%. This redistribution occurs inside the q = 1 surface. The addition of a (2, 1) mode, which can produce the stochastization of the magnetic field, significantly increases particle redistribution and allows particles to spread beyond the q = 1 surface. Different groups of particles (co-passing, counter-passing, trapped) respond differently to the perturbations.Fil: Farengo, Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Ferrari, Hugo Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); ArgentinaFil: Garcia Martinez, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Firpo, M. C.. Centre National de la Recherche Scientifique; FranciaFil: Ettoumi, W.. Centre National de la Recherche Scientifique; FranciaFil: Lifschitz, A. F.. Centre National de la Recherche Scientifique; FranciaInt Atomic Energy Agency2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17701Farengo, Ricardo; Ferrari, Hugo Emilio; Garcia Martinez, Pablo Luis; Firpo, M. C.; Ettoumi, W.; et al.; Redistribution of high energy alpha particles due to sawteeth with partial reconnection; Int Atomic Energy Agency; Nuclear Fusion; 53; 4; 4-2013; 1-12; 0430120029-5515enginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0029-5515/53/4/043012info:eu-repo/semantics/altIdentifier/doi/10.1088/0029-5515/53/4/043012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:48Zoai:ri.conicet.gov.ar:11336/17701instacron: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 09:43:48.715CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Redistribution of high energy alpha particles due to sawteeth with partial reconnection
title Redistribution of high energy alpha particles due to sawteeth with partial reconnection
spellingShingle Redistribution of high energy alpha particles due to sawteeth with partial reconnection
Farengo, Ricardo
Iter
Sawtooth
Particles
Redistribution
title_short Redistribution of high energy alpha particles due to sawteeth with partial reconnection
title_full Redistribution of high energy alpha particles due to sawteeth with partial reconnection
title_fullStr Redistribution of high energy alpha particles due to sawteeth with partial reconnection
title_full_unstemmed Redistribution of high energy alpha particles due to sawteeth with partial reconnection
title_sort Redistribution of high energy alpha particles due to sawteeth with partial reconnection
dc.creator.none.fl_str_mv Farengo, Ricardo
Ferrari, Hugo Emilio
Garcia Martinez, Pablo Luis
Firpo, M. C.
Ettoumi, W.
Lifschitz, A. F.
author Farengo, Ricardo
author_facet Farengo, Ricardo
Ferrari, Hugo Emilio
Garcia Martinez, Pablo Luis
Firpo, M. C.
Ettoumi, W.
Lifschitz, A. F.
author_role author
author2 Ferrari, Hugo Emilio
Garcia Martinez, Pablo Luis
Firpo, M. C.
Ettoumi, W.
Lifschitz, A. F.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Iter
Sawtooth
Particles
Redistribution
topic Iter
Sawtooth
Particles
Redistribution
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The redistribution of high energy alpha particles due to internal kink modes is studied in plasmas with ITER-like parameters. The exact particle trajectories in the total fields, equilibrium plus perturbation, are calculated. The equilibrium magnetic field is obtained by analytically solving the Grad–Shafranov equation and the perturbed electric and magnetic fields are reconstructed using ideal MHD and the experimental information about the displacement eigenfunction. The (1, 1), (2, 2) and (2, 1) modes are included and the effect of changing their amplitude and frequency is determined. The results show that if the conditions are similar to those reported in Igochine et al (2007 Nucl. Fusion 47 23), the peak density of counter-passing particles decreases between 25% and 40% (depending on the energy); the peak of the trapped particles density shifts outwards by approximately 10% of the minor radius and the total on axis density decreases by more than 25%. This redistribution occurs inside the q = 1 surface. The addition of a (2, 1) mode, which can produce the stochastization of the magnetic field, significantly increases particle redistribution and allows particles to spread beyond the q = 1 surface. Different groups of particles (co-passing, counter-passing, trapped) respond differently to the perturbations.
Fil: Farengo, Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Ferrari, Hugo Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Garcia Martinez, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Firpo, M. C.. Centre National de la Recherche Scientifique; Francia
Fil: Ettoumi, W.. Centre National de la Recherche Scientifique; Francia
Fil: Lifschitz, A. F.. Centre National de la Recherche Scientifique; Francia
description The redistribution of high energy alpha particles due to internal kink modes is studied in plasmas with ITER-like parameters. The exact particle trajectories in the total fields, equilibrium plus perturbation, are calculated. The equilibrium magnetic field is obtained by analytically solving the Grad–Shafranov equation and the perturbed electric and magnetic fields are reconstructed using ideal MHD and the experimental information about the displacement eigenfunction. The (1, 1), (2, 2) and (2, 1) modes are included and the effect of changing their amplitude and frequency is determined. The results show that if the conditions are similar to those reported in Igochine et al (2007 Nucl. Fusion 47 23), the peak density of counter-passing particles decreases between 25% and 40% (depending on the energy); the peak of the trapped particles density shifts outwards by approximately 10% of the minor radius and the total on axis density decreases by more than 25%. This redistribution occurs inside the q = 1 surface. The addition of a (2, 1) mode, which can produce the stochastization of the magnetic field, significantly increases particle redistribution and allows particles to spread beyond the q = 1 surface. Different groups of particles (co-passing, counter-passing, trapped) respond differently to the perturbations.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/17701
Farengo, Ricardo; Ferrari, Hugo Emilio; Garcia Martinez, Pablo Luis; Firpo, M. C.; Ettoumi, W.; et al.; Redistribution of high energy alpha particles due to sawteeth with partial reconnection; Int Atomic Energy Agency; Nuclear Fusion; 53; 4; 4-2013; 1-12; 043012
0029-5515
url http://hdl.handle.net/11336/17701
identifier_str_mv Farengo, Ricardo; Ferrari, Hugo Emilio; Garcia Martinez, Pablo Luis; Firpo, M. C.; Ettoumi, W.; et al.; Redistribution of high energy alpha particles due to sawteeth with partial reconnection; Int Atomic Energy Agency; Nuclear Fusion; 53; 4; 4-2013; 1-12; 043012
0029-5515
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0029-5515/53/4/043012
info:eu-repo/semantics/altIdentifier/doi/10.1088/0029-5515/53/4/043012
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
dc.publisher.none.fl_str_mv Int Atomic Energy Agency
publisher.none.fl_str_mv Int Atomic Energy Agency
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
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score 13.13397

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