ECRH and ECCD with high power gyrotrons at the stellarators W7-AS and W7-X

IEEE Transactions on Plasma Science

Volumn 27, Issue 2, 1999, Pages 538-546

  Erckmann, V ^a  

^a MAX PLANCK INSTITUT FÜR PLASMAPHYSIK   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRIC CURRENTS; ELECTRON CYCLOTRON RESONANCE; GYROTRONS; MICROWAVE HEATING; MILLIMETER WAVES; PLASMA HEATING;

ELECTRON CYCLOTRON RESONANCE HEATING (ECRH); ELECTRON CYCLOTRON-CURRENT DRIVES (ECCD); MAGNETIC CONFINEMENT FUSION; STELLARATORS;

PLASMA CONFINEMENT;

EID: 0032648096     PISSN: 00933813     EISSN: None     Source Type: Journal    
DOI: 10.1109/27.772283     Document Type: Article

References (22)

1. L. Empacher W. Foerster G. Gantenbein W. Kasparek G. A. Mueller P. G. Schueller K. Schwoerer U. Schumacher D. Wagner V. Erckmann T. Geist and H. Laqua Conceptual design of the 140 Ghz/10 MW CW ECRH system for the stellarator W7-X in Proc. 19th Symp. Fusion Technol. 1996 Fusion Technol.. Amsterdam The Netherlands: Elsevier 1997 pp. 541-544.
2. T. Shimozuma M. Sato Y. Takita S. Kubo H. Idei K. Ohkubo T. Watari S. Yasutomi Y. Suzuki F. Saito S. Sasaki Y. Saito and T. Okamoto Development of an ECRH system for large helical device in Proc. 19th Symp. Fusion Techn. 1996 Fusion Technol.. Amsterdam The Netherlands: Elsevier 1997 vol. 1 p. 553.
3. WVII-A TEAM and NI-GROUP Neutral injection in the Wendelstein VII-A stellarator with reduced ohmic current in Plasma Physics and Controlled Nuclear Fusion Research. Vienna Austria: IAEA 1981 vol. 1 p. 185.
4. V. Erckmann W7-A Team NI-Team (W7-AS) and ECRH Group (IFF Stuttgart) Electron cyclotron resonance heating in the Wendelstein 7A stellarator Plasma Phys. Controlled Fusion vol. 28 no. 9A pp. 1277-1290 1986.
5. G. Grieger W. Lotz P. Merkel J. Nuehrenberg J. Sapper E. Strumberger H. Wobig the W7-X Team R. Burhenn V. Erckmann U. Gasparino L. Giannone H. J. Hartfuss R. Jaenicke G. Kuehner H. Ringler A. Weller F. Wagner and the W7-AS Team Physics optimization of stellarators Phys. Fluids B vol. 4 no. 7 pp. 2081-2091 1992.
6. C. Beidler G. Grieger F. Herrnegger E. Harmeyer et al. Physics and engineering design for W7-X Fusion Technol. vol. 17 pp. 148-168 1990.
7. H. Wobig The theoretical basis of a drift optimized stelerator reactor Plasma Phys. Control. Fusion vol. 35 pp. 908-917 1993.
8. V. Erckmann H. J. Hartfuss M. Kick H. Renner J. Sapper F. Schauer E. Speth F. Wesner F. Wagner M. Wanner A. Weller and H. Wobig The W7-X project: Scientific basis and technical realization in Proc. 17th 1EEE/NPSS Symp. Fusion Eng. San Diego CA. 1997 pp. 40-48.
9. G. Grieger J. Nuehrenberg H. Renner J. Sapper and H. Wobig HELIAS stellarator reactor studies and related European technology studies Fusion Eng. Design vol. 25 pp. 73-84 1994.
10. J. Nührenberg and R. Zille Stable stellarators with medium β and aspect ratio Phys. Lett. vol. 114A no 3 pp. 129-132 1986.
11. J. Nührenberg and R. Zille Quasi-helically symmetric toroidal stellarators Phys. Lett. vol. 129A no. 2 pp. 113-117 1988.
12. M. Rome V. Erckmann U. Gasparino and N. Karulin Electron cyclotron resonance heating and current drive in the W7-X stellarator Plasma Phys. Control Fusion vol. 40 p. 511 1998.
13. U. Gasparino V. Erckmann H. J. Hartfu H. Maaberg and M. Rome Transport analysis through heat waves driven at different radial positions Plasma Phys. Control Fusion vol. 40 pp. 233-244 1998.
14. H. Wobig and I. Ott Plasma parameters in W VII-X in Proc. 4th Workshop Wendelstein 7-X Schloβ Ringberg Germany 1991 IPP Report 2/313 p. 112.
15. V. Erckmann N. Karulin and H. Wobig High density operation with 140 GHz ECRH: Experiments at the W7-AS stellarator prospects for the W7-X stellarator in Proc. 21st EPS Conf. Controlled Fusion Plasma Phys. Montpellier France 1994 Part II vol. 18B p. 1008.
16. H. P. Laqua V. Erckmann H. J. Hartfu H. Laqua W7-AS Team and ECRH Group Resonant and nonresonant electron cyclotron heating at densities above the plasma cutoff by O-X-B mode conversion at the W7-AS stellarator Phys. Rev. Lett. vol. 78 p. 3467 1997.
17. V. Erckmann U. Gasparino and H. Maaberg Current drive and bootstrap current in stellarators Plasma Phys. Controlled Fusion vol. 34 pp. 1917-1923 1992.
18. G. Gantenbein L. Empacher V. Erckmann F. Hollmann W. Kasparek M. Weigerber and H. Zohm Simulation and experiments on a Multibeam waveguide ECRH transmission system in Proc. of the 20th Symp. Fusion Technol. 1998 Fusion Technol. 1998 Marseille France vol. 1 pp. 423-426.
19. D. Vinogradov Mirror conversion of Gaussian beams with simple astigmatism Int. J. Infrared Millimeter Waves vol. 16 no. 11 p. 1945 1995.
20. W. Kasparek Millimeter wave systems for high-power ECRH status and future trends in Proc. 8th Joint Workshop Electron Cyclotron Emission Electron Cyclotron Heating Gut Ising Germany 1992 IPP Report III-186 1993 vol. 2 p. 423.
21. R. Petit Ed. Electromagnetic Theory of Gratings. Berlin Germany: Springer 1980.
22. M. Q. Tran et al. Properties of diffraction gratings used as output couplers in a quasi-optical gyrotron J. Appl. Phys. vol. 73 p. 2089 1993.