Statistics of plasma fluctuations in runaway discharges in TCABR tokamak

M S Baptista, I L Caldas, W P de Sa, J I Elizondo

Research output: Contribution to journalArticle

Abstract

In this work we analyze the spikes in the H-alpha emission, and density turbulence in runaway discharges in the TCABR tokamak. For the plasma edge density fluctuations, we find a symmetric-recurrent-type turbulence, with the same statistics found in measures of low-dimensional recurrent chaotic systems. For the plasma core fluctuations, we note that the line density oscillations axe synchronized to the H-alpha oscillations. In addition, we suggest that both the onset of the H-alpha spikes and the line density oscillations axe triggered by a process similar to the bifurcation responsible for the firing of neurons.

Original languageEnglish
Pages (from-to)95-99
Number of pages5
JournalBrazilian Journal of Physics
Volume32
Issue number1
DOIs
Publication statusPublished - Mar 2002

Keywords

  • disruptions
  • JET

Cite this

Statistics of plasma fluctuations in runaway discharges in TCABR tokamak. / Baptista, M S ; Caldas, I L ; de Sa, W P ; Elizondo, J I .

In: Brazilian Journal of Physics, Vol. 32, No. 1, 03.2002, p. 95-99.

Research output: Contribution to journalArticle

Baptista, M S ; Caldas, I L ; de Sa, W P ; Elizondo, J I . / Statistics of plasma fluctuations in runaway discharges in TCABR tokamak. In: Brazilian Journal of Physics. 2002 ; Vol. 32, No. 1. pp. 95-99.
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