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[en] The ECRH experiment on TORE SUPRA is designed to inject up to 3 MW of power at 118 GHz using an antenna consisting of six fixed spherical mirrors and three mobile steering mirrors. The position of the mobile mirrors can be varied in real time using two stepper motors for each mobile mirror. In addition to controlling the injection angle, the position of the mobile mirrors also affects the polarisation of the injected wave. Accurate formulae to compute, in real time, the stepper motor positions required to obtain the desired beam injection angles have been derived. Formulae to determine the effect on the wave polarisation, of the actual mobile mirror positions have also been determined. These formulae have been verified by precise laser measurements and by comparison of power deposition calculations and experimental results. (authors)
Source
Giruzzi, Gerardo (Association Euratom-CEA sur la Fusion, DRFC/SCCP, CEA/Cadarache, 13108 St. Paul-lez-Durance (France)); Association Euratom-CEA sur la Fusion, DRFC/SCCP, CEA/Cadarache, 13108 St. Paul-lez-Durance (France). Funding organisation: Association Euratom-CEA sur la Fusion, CEA/Cadarache, 13108 St. Paul-lez-Durance (France); Region Provence-Alpes Cote d'Azur - The City of Aix-en-Provence, Aix-en-Provence (France); Communaute de l'Agglomeration du Pays d'Aix, Aix-en-Provence (France); Thales Electron Devices (France); Alstom Magnets and Superconductors (France); Spinner GMBH (Germany); 610 p; ISBN 981-238-189-9; 
; 2003; p. 309-316; 12. Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Heating; Aix-en-Provence (France); 13-16 May 2002; 11 refs., 7 figs.
; 2003; p. 309-316; 12. Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Heating; Aix-en-Provence (France); 13-16 May 2002; 11 refs., 7 figs.