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Title: Characterization of radial turbulent fluxes in the Santander linear plasma machine

It is shown that the statistical and correlation properties of the local turbulent flux measured at different radial locations of the cold, weakly ionized plasmas inside the Santander Linear Plasma Machine [Castellanos et al., Plasma Phys. Control. Fusion 47, 2067 (2005)] are consistent with diffusive-like transport dynamics. This is in contrast to the dynamical behavior inferred from similar measurements taken in hotter, fully ionized tokamak and stellarator edge plasmas, in which long-term correlations and other features characteristic of complex, non-diffusive transport dynamics have been reported in the past. These results may shed some light on a recent controversy regarding the possible universality of the dynamics of turbulent transport in magnetized plasmas.
Authors:
; ;  [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Departamento de Física Aplicada, Universidad de Cantabria, 39005 Santander (Spain)
  2. Departamento de Física, Universidad Carlos III de Madrid, 28911 Leganés, Madrid (Spain)
  3. Department of Physics, University of Alaska, Fairbanks, Alaska 99775-5920 (United States)
  4. Instituto de Hidráulica Ambiental, Universidad de Cantabria, 39005 Santander (Spain)
  5. Laboratorio Nacional de Fusión, Asociación EURATOM-CIEMAT, 28040 Madrid (Spain)
Publication Date:
OSTI Identifier:
22252902
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONTROL; CORRELATIONS; PLASMA; TOKAMAK DEVICES