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R. Sabot, P. Hennequin, L. Colas
Fusion Science and Technology | Volume 56 | Number 3 | October 2009 | Pages 1253-1272
Technical Papers | Tore Supra Special Issue | dx.doi.org/10.13182/FST09-A9176
Articles are hosted by Taylor and Francis Online.
Measurement of turbulence properties provides key insight to understand anomalous transport in magnetic fusion devices. On Tore Supra, scattering diagnostics and reflectometers have been used to measure density fluctuations in the plasma core. A cross-polarization scattering diagnostic was also the first diagnostic to measure the turbulence magnetic fluctuations in a fusion plasma core. This paper presents the principle and the experimental setup of these diagnostics, with chosen results illustrating their capabilities to determine the spatial structure of the turbulence and to assess the link between energy transport and fluctuations. These flexible and complementary measurements made it possible to analyze the confinement and fluctuation scaling laws with nondimensional parameters, which requires a wide variety of plasma conditions.