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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Ronchi, G. [1] ; Severo, J. H. F. [1] ; Salzedas, F. [2, 3] ; Galvao, R. M. O. [1] ; Sanada, E. K. [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Fis, CP 20516, BR-01498 Sao Paulo - Brazil
[2] Univ Porto, Fac Engn, Rua Campo Alegre 823, P-4100 Oporto - Portugal
[3] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1699 Lisbon - Portugal
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: PLASMA PHYSICS REPORTS; v. 42, n. 5, p. 465-471, MAY 2016.
Citações Web of Science: 1
Resumo

The behavior of the intrinsic toroidal rotation of the plasma column during the growth and eventual saturation of m/n = 2/1 magnetic islands, triggered by programmed density rise, has been carefully investigated in disruptive discharges in TCABR. The results show that, as the island starts to grow and rotate at a speed larger than that of the plasma column, the angular frequency of the intrinsic toroidal rotation increases and that of the island decreases, following the expectation of synchronization. As the island saturates at a large 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 quite reproducible and can be considered as an indicative of disruption. (AU)

Processo FAPESP: 11/50773-0 - Núcleo de excelência em física e aplicações de plasmas
Beneficiário:Ricardo Magnus Osório Galvão
Linha de fomento: Auxílio à Pesquisa - Temático