Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas

Detalhes bibliográficos
Autor(a) principal: F. Salzedas
Data de Publicação: 2002
Outros Autores: F. C. Schuller, A. A. M. Oomens, RTP Team
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/10216/23182
Resumo: The local measurement of the island width w, around the resonant surface, allowed a direct test of the extended Rutherford model [P. H. Rutherford, PPPL Report-2277 (1985)], describing the evolution of radiation-induced tearing modes prior to disruptions of tokamak plasmas. It is found that this model accounts very well for the observed exponential growth and supports radiation losses as being the main driving mechanism. The model implies that the effective perpendicular electron heat conductivity in the island is smaller than the global one. Comparison of the local measurements of w with the magnetic perturbed field showed that w1/2 was valid for widths up to 18% of the minor radius.
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spelling Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmasFísicaPhysical sciencesThe local measurement of the island width w, around the resonant surface, allowed a direct test of the extended Rutherford model [P. H. Rutherford, PPPL Report-2277 (1985)], describing the evolution of radiation-induced tearing modes prior to disruptions of tokamak plasmas. It is found that this model accounts very well for the observed exponential growth and supports radiation losses as being the main driving mechanism. The model implies that the effective perpendicular electron heat conductivity in the island is smaller than the global one. Comparison of the local measurements of w with the magnetic perturbed field showed that w1/2 was valid for widths up to 18% of the minor radius.20022002-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/23182eng0031-900710.1103/PhysRevLett.88.075002F. SalzedasF. C. SchullerA. A. M. OomensRTP Teaminfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T15:42:16Zoai:repositorio-aberto.up.pt:10216/23182Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:30:03.609286Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
title Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
spellingShingle Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
F. Salzedas
Física
Physical sciences
title_short Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
title_full Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
title_fullStr Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
title_full_unstemmed Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
title_sort Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas
author F. Salzedas
author_facet F. Salzedas
F. C. Schuller
A. A. M. Oomens
RTP Team
author_role author
author2 F. C. Schuller
A. A. M. Oomens
RTP Team
author2_role author
author
author
dc.contributor.author.fl_str_mv F. Salzedas
F. C. Schuller
A. A. M. Oomens
RTP Team
dc.subject.por.fl_str_mv Física
Physical sciences
topic Física
Physical sciences
description The local measurement of the island width w, around the resonant surface, allowed a direct test of the extended Rutherford model [P. H. Rutherford, PPPL Report-2277 (1985)], describing the evolution of radiation-induced tearing modes prior to disruptions of tokamak plasmas. It is found that this model accounts very well for the observed exponential growth and supports radiation losses as being the main driving mechanism. The model implies that the effective perpendicular electron heat conductivity in the island is smaller than the global one. Comparison of the local measurements of w with the magnetic perturbed field showed that w1/2 was valid for widths up to 18% of the minor radius.
publishDate 2002
dc.date.none.fl_str_mv 2002
2002-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10216/23182
url https://hdl.handle.net/10216/23182
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0031-9007
10.1103/PhysRevLett.88.075002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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