Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges

Detalhes bibliográficos
Autor(a) principal: G. Ronchi
Data de Publicação: 2016
Outros Autores: J. H. F. Severo, F. Salzedas, R. M. O. Galvão, E. K. Sanada
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://repositorio-aberto.up.pt/handle/10216/83774
Resumo: The behavior of the intrinsic toroidal rotation of the plasma column during the growth and eventualsaturation of m/n = 2/1 magnetic islands, triggered by programmed density rise, has been carefully investigatedin disruptive discharges in TCABR. The results show that, as the island starts to grow and rotate at aspeed larger than that of the plasma column, the angular frequency of the intrinsic toroidal rotation increasesand that of the island decreases, following the expectation of synchronization. As the island saturates at alarge size, just before a major disruption, the angular speed of the intrinsic rotation decreases quite rapidly,even though the island keeps still rotating at a reduced speed. This decrease of the toroidal rotation is quitereproducible and can be considered as an indicative of disruption.
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spelling Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive dischargesThe behavior of the intrinsic toroidal rotation of the plasma column during the growth and eventualsaturation of m/n = 2/1 magnetic islands, triggered by programmed density rise, has been carefully investigatedin disruptive discharges in TCABR. The results show that, as the island starts to grow and rotate at aspeed larger than that of the plasma column, the angular frequency of the intrinsic toroidal rotation increasesand that of the island decreases, following the expectation of synchronization. As the island saturates at alarge size, just before a major disruption, the angular speed of the intrinsic rotation decreases quite rapidly,even though the island keeps still rotating at a reduced speed. This decrease of the toroidal rotation is quitereproducible and can be considered as an indicative of disruption.20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://repositorio-aberto.up.pt/handle/10216/83774eng1063-780X10.1134/S1063780X16050159G. RonchiJ. H. F. SeveroF. SalzedasR. M. O. GalvãoE. K. Sanadainfo: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:RCAAP2023-11-29T15:33:23Zoai:repositorio-aberto.up.pt:10216/83774Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:26:30.759647Repositório 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 Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
title Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
spellingShingle Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
G. Ronchi
title_short Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
title_full Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
title_fullStr Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
title_full_unstemmed Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
title_sort Interplay between intrinsic plasma rotation and magnetic island evolution in disruptive discharges
author G. Ronchi
author_facet G. Ronchi
J. H. F. Severo
F. Salzedas
R. M. O. Galvão
E. K. Sanada
author_role author
author2 J. H. F. Severo
F. Salzedas
R. M. O. Galvão
E. K. Sanada
author2_role author
author
author
author
dc.contributor.author.fl_str_mv G. Ronchi
J. H. F. Severo
F. Salzedas
R. M. O. Galvão
E. K. Sanada
description The behavior of the intrinsic toroidal rotation of the plasma column during the growth and eventualsaturation of m/n = 2/1 magnetic islands, triggered by programmed density rise, has been carefully investigatedin disruptive discharges in TCABR. The results show that, as the island starts to grow and rotate at aspeed larger than that of the plasma column, the angular frequency of the intrinsic toroidal rotation increasesand that of the island decreases, following the expectation of synchronization. As the island saturates at alarge size, just before a major disruption, the angular speed of the intrinsic rotation decreases quite rapidly,even though the island keeps still rotating at a reduced speed. This decrease of the toroidal rotation is quitereproducible and can be considered as an indicative of disruption.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01T00:00:00Z
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://repositorio-aberto.up.pt/handle/10216/83774
url https://repositorio-aberto.up.pt/handle/10216/83774
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1063-780X
10.1134/S1063780X16050159
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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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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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