Time Series Statistical Analysis for Electron Temperature Fluctuations Measurements in Plasmas

time by means of insertable probes, little is known about T̃e in the plasma core [1,2] where no material objects can be inserted. Moreover even less information is available about the time evolution of the fluctuations level [3]. We report here the first measurements of the core electron temperature fluctuations in the Reversed Field Pinch (RFP) plasma, a self-organizing magnetic configuration for the confinement of thermonuclear plasmas. They have been obtained, with high time resolution, with a simple diagnostics and with the application of an advanced adaptive statistical technique, the Singular Spectrum Analysis (SSA) [4].