Exponentially growing tearing modes in Rijnhuizen Tokamak Project plasmas

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

F. Salzedas (Autor) FEUP; F. C. Schuller (Autor) Outra; A. A. M. Oomens (Autor) Outra; RTP Team (Autor) Outra

Revista

Título: Physical Review Letters

Vol. 88 Nº 7

Páginas: 075002-75005

ISSN: 0031-9007

Editora: American Physical Society

Indexação

ISI Web of Science

Scopus

COMPENDEX

INSPEC

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

DOI: 10.1103/PhysRevLett.88.075002

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4