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Analog Feedback Control of RFP Plasma: Implementation and First Results in the RFX Experiment

Pietro Fiorentin, Elena Gaio, Giuseppe Marchiori, Roberto Piovan, Vanni Toigo

Fusion Science and Technology / Volume 26 / Number 3P2 / November 1994 / Pages 572-576

Plasma Heating and Current Drive, Plasma Engineering / Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 / dx.doi.org/10.13182/FST94-A40218

The design of an analog feedback control system of the plasma current and of the toroidal field at the first-wall is presented. Features and differences with respect to Tokamak devices are pointed out. Details on front-end electronics for feedback signal generation, regulator structure, signal transmission, logic units for feedback insertion and for protection are described. Finally, experimental results are presented and discussed.