B. Marlétaz

Overview of the TCV digital real-time plasma control system and its applications

C. Galperti, F. Felici, Vu Thi Phuong Lien, O. Sauter et autres

Real-time plasma control systems are at the heart of operation of modern tokamaks. The control system of the TCV tokamak has recently seen a major upgrade in terms of its hardware and software components. Control algorithms are entirely programmed and tested in …

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Upgrade of the neutral beam heating system on the TCV tokamak – second high energy neutral beam

A. Karpushov, F. Bagnato, M. Baquero-Ruiz, S. Coda et autres

The TCV tokamak continues to leverage its unique shaping capabilities, flexible heating systems and modern control system to provide a stepladder approach for extrapolations of experimental results from different machines to ITER and DEMO. TCV's configurational flexibility has recently been enhanced by …

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Megawatt power generation of the dual-frequency gyrotron for TCV at 84 and 126 GHz, in long pulses

J.-P. Hogge, S. Alberti, Konstantinos A. Avramidis, A. Bruschi et autres

In the frame of the TCV Tokamak upgrade, two 84/126 GHz/2 s dual frequency gyrotrons designed by SPC and KIT and manufactured by THALES will be added to the existing EC-System. The first unit has been delivered to EPFL-SPC and tested. In …

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Thomson scattering measurements in the divertor region of the TCV Tokamak plasmas

P. Blanchard, Y. Andrèbe, H. Arnichand, R. Agnello et autres

Thomson scattering measurements in the divertor region of the TCV Tokamak plasmas, Blanchard, P., Andrebe, Y., Arnichand, H., Agnello, R., Antonioni, S., Couturier, S., Decker, J., D`Exaerde, T. De Kerchove, Duval, B.P., Furno, I., Isoz, P.-F., Lavanchy, P., Llobet, X., Marlétaz, B., …

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New capabilities of the incoherent Thomson scattering diagnostics in the TCV tokamak: divertor and real-time measurements

H. Arnichand, Y. Andrèbe, P. Blanchard, S. Antonioni et autres

New capabilities of the incoherent Thomson scattering diagnostics in the TCV tokamak: divertor and real-time measurements, Arnichand, H., Andrebe, Y., Blanchard, P., Antonioni, S., Couturier, S., Decker, J., Duval, B.P., Felici, F., Galperti, C., Isoz, P.-F., Lavanchy, P., Llobet, X., Marlétaz, B., …

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High-efficiency, long-pulse operation of MW-level dual-frequency gyrotron, 84/126GHz, for the TCV Tokamak

S. Alberti, J.-P. Hogge, P.-F. Isoz, P. Lavanchy et autres

The first unit of the dual-frequency gyrotron, 84-126GHz/1MW/2s, for the upgrade of the TCV ECH system has been delivered and is presently being commissioned. During a first phase, long-pulse operation (TRF>0.5s) has been achieved and powers in excess of 0.93MW/1.1s and 1MW/1.2s …

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Langmuir probe electronics upgrade on the tokamak à configuration variable

H. De Oliveira, Ph. Marmillod, C. Theiler, R. Chavan et autres

A detailed description of the Langmuir probe electronics upgrade for TCV (Tokamak à Configuration Variable) is presented. The number of amplifiers and corresponding electronics has been increased from 48 to 120 in order to simultaneously connect all of the 114 Langmuir probes …

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LTCC magnetic sensors at EPFL and TCV: Lessons learnt for ITER

D. Testa, Adrien Corne, Caroline Jacq, Thomas Maeder et autres

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From W7-X Towards ITER and Beyond: 2019 Status on EU Fusion Gyrotron Developments

John Jelonnek, J. Dubray, F. Fanale, D. Fasel et autres

In Europe, the research and development with main focus on achieving robust industrial designs of series gyrotrons for electron cyclotron heating and current drive of today's nuclear fusion experiments and towards a future DEMOnstration fusion power plant is constantly progressing. The R&D …

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Manufacturing and Test of the 1 MW Long-Pulse 84/126 GHz Dual-Frequency Gyrotron for TCV

R. Marchesin, Stefano Albert, Konstantinos A. Avramidis, Andrea Bertinetti et autres

An 1 MW long-pulse (2s), 84/126 GHz dual-frequency gyrotron has been produced by THALES MSI, France responding to the needs for upgrading the ECH system of the TCV tokamak. The initial tests of the prototype carried out at EPFL, Switzerland, have verified …

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Improving spatial and spectral resolution of TCV Thomson scattering

J. Hawke, Y. Andrèbe, R. Bertizzolo, P. Blanchard et autres

The recently completed MST2 upgrade to the Thomson scattering (TS) system on TCV (Tokamak à Configuration Variable) at the Swiss Plasma Center aims to provide an enhanced spatial and spectral resolution while maintaining the high level of diagnostic flexibility for the study …

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Commissioning of the heating neutral beam injector on the TCV tokamak

D. Fasel, Y. Andrèbe, J. Dubray, A. Karpushov et autres

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