CNR ExploRA

Articolo in rivista, 2007, ENG, 10.1016/j.fusengdes.2007.01.029

EU Development of the ITER ECRH System

Henderson, M. A.; Alberti, S.; Benin, P.; Bonicelli, T.; Chavan, R.; Campbell, D.; Cirant, S.; Dammertz, G.; Dormicchi, O.; Dumbrajs, O.; Fasel, D.; Goodman, T. P.; Heidinger, R.; Hogge, J. -P.; Kasparek, W.; Lievin, C.; Piosczyk, B.; Poli, E.; Ramponi, G.; Saibene, G.; Sauter, O.; Serikov, A.; Taddia, G.;Thumm, M.; Tran, M. Q.; Verhoeven, A. G. A.; Zohm, H.

[ 1 ] Ecole Polytech Fed Lausanne, EURATOM Confederat Suisse, CRPP, CH-1015 Lausanne, Switzerland [ 2 ] TED, D-78141 Vlizy Villacoublay, Germany [ 3 ] EFDA Close Support Unit, D-85748 Garching, Germany [ 4 ] ANSALDO, I-16152 Genoa, Italy [ 5 ] CNR, ENEA, EURATOM, Istituto di Fisica del Plasma, I-20125 Milan, Italy [ 6 ] Helsinki Univ Technol, EURATOM TEKES, FIN-02150 Espoo, Finland [ 7 ] EURATOM FZK, IHM, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany [ 8 ] EURATOM IPP, Inst Plasmaphys, D-70569 Stuttgart, Germany [ 9 ] EURATOM IPP, Max Planck Inst Plasmaphys, D-85748 Garching, Germany [ 10 ] OCEM, I-1980 Bologna, Italy [ 11 ] EURATOM FOM, FOM Rijnhuizen, Nieuwegein, Netherlands

The EU will be providing the largest contribution to the ITER electron cyclotron (EC) heating and current drive (H&CD) system (20 MW, CW at 170 GHz). The contribution includes one third of the H&CD gyrotrons, their associated power supplies and four upper port launcher antennas. In all areas of participation, the EU EC partnership (coordinated by the European Fusion Development Agreement) aims toward advancing the technology, while staying within a specified cost envelope. This is portrayed in the co-axial gyrotron development that offers the potential to double the output power per source (2.0 MW), increasing the delivered power for a fixed number of auxiliary systems. The EU partnerships also attempt to increase performance for the entire EC system, in particular the launching antennas. The proposed front steering launcher design offers greater control of MHD activity than the previous remote steering design and opens up the possibility of an enhanced performance UL. The EC physics requirements are repartitioned between the upper and equatorial launchers for a synergetic balance, which increases the EC physics capabilities while relaxing some of the engineering requirements. (c) 2007 Elsevier B.V. All rights reserved.

Fusion engineering and design 82 , pp. 454–462