Upgrade and validation on plasma of the Tore Supra CW LHCD generator

Journal Article · Fri Dec 23 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3664949· OSTI ID:21612472

Delpech, L; Achard, J; Armitano, A; Berger-By, G; Bertrand, E; Bouquey, F; Chaix, J P; Corbel, E; Crest, I; Ekedahl, A; Faisse, F; Fejoz, P; Garibaldi, P; Goletto, C; Lebourg, P; Leroux, F; Lombard, G; Magne, R; Martinez, A; Moreau, M ^[1]

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1. CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)

A one year-long major upgrade of the 3.7 GHz Lower Hybrid Current Drive (LHCD) generator for the Tore Supra (TS) tokamak has been performed. It consisted in installing a first series of eight Thales Electron Devices (TED) 700 kW CW klystrons, new CW components and auxiliaries, and in modifying the transmitter control and protection software. Modifications and calibration of the sensors and the RF subsystems were completed as well. Finally, the RF power available in the generator has been increased by 35% and the pulse duration could reach 1000 s. A complete validation and optimization of the klystrons have been performed in 2010 on matched load before the generator could enter into operation. The eight klystrons connected with the Full Active Multijunction (FAM) antenna delivered 3.5 MW/50s in December 2010. The upgrade of the generator and the steps to validate the modifications are described.

• OSTI ID: 21612472
• Journal Information: AIP Conference Proceedings, Vol. 1406, Issue 1; Conference: 9. topical conference on radio frequency power in plasmas, Newport (United States), 1-3 Jun 2011; Other Information: DOI: 10.1063/1.3664949; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
CALIBRATION
COMPUTER CODES
ELECTRONS
KLYSTRONS
LOWER HYBRID CURRENT DRIVE
MODIFICATIONS
OPERATION
OPTIMIZATION
PLASMA
PLASMA PRODUCTION
PULSES
RF SYSTEMS
SENSORS
TORE SUPRA TOKAMAK
VALIDATION
CLOSED PLASMA DEVICES
ELECTRICAL EQUIPMENT
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
LEPTONS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
NON-INDUCTIVE CURRENT DRIVE
TESTING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES