Publications of H. Laqua

Wagner, F.; Andreeva, T.; Baldzuhn, J.; Benndorf, A.; Bolt, H.; Boscary, J.; Bosch, H. S.; Bräuer, T.; Brakel, R.; Brand, P. et al.; Cardella, A.; Czerwinski, M.; Damiani, C.; Dammertz, G.; Dübner, A.; Ehmler, H.; Elio, F.; Endler, M.; Erckmann, V.; Feist, J. H.; Fillunger, M.; Gantenbein, G.; Gardebrecht, W.; Gasparotto, M.; Giesen, B.; Greuner, H.; Greve, H.; Grigull, P.; Grote, H.; Harmeyer, E.; Hartfuss, H. J.; Hartmann, D.; Hein, B.; Heinemann, B.; Holtum, D.; Huguet, M.; Hurd, F.; Jaksic, N.; Kasparek, W.; Kisslinger, J.; Klinger, T.; Knauer, J.; Krampitz, R.; Laqua, H.; Lentz, H.; Liesenberg, K.; Maier, J.; Maix, R.; Mendelevitch, B.; Michel, G.; Nagel, M.; Naujoks, D.; Niedermeyer, H.; Nührenberg, C.; Opitz, A.; Pfeiffer, G.; Pietsch, M.; Reich, J.; Risse, K.; Rong, P.; Rummel, K.; Rummel, T.; Sborchia, C.; Schauer, F.; Schröder, R.; Schultz, U.; Schweizer, S.; Simon-Weidner, J.; Sochor, M.; Sonnerup, L.; Streibl, B.; Tretter, J.; Thumm, M.; Viebke, H.; Wanner, M.; Wegener, L.; Weissgerber, M.; Werner, A.; Winkler, M.: Physics, Technologies and Status of the Wendelstein 7-X Device. In: 20th IAEA Fusion Energy Conference Proceedings, FT/3-5. 20th IAEA Fusion Energy Conference, Vilamoura, November 01, 2004 - November 06, 2004. International Atomic Energy Agency, Vienna (2005)

Dammertz, G.; Alberti, S.; Arnold, A.; Borie, E.; Brand, P.; Braune, H.; Erckmann, V.; Gantenbein, G.; Giguet, E.; Heidinger, R. et al.; Hogge, J. P.; Illy, S.; Kasparek, W.; Koppenburg, K.; Kunze, M.; Laqua, H.; Le Cloarec, G.; Legrand, F.; Piosczyk, B.; Schmid, M.; Thumm, M.; Tran, M. Q.: Status of the 1 MW, CW Gyrotrons for the Stellarator W7-X. In: Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW 2004/THz 2004), M4.4, pp. 113 - 114 (Eds. Thumm, M.; Wiesbeck, W.). Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW 2004/THz 2004), Karlsruhe, September 27, 2004 - October 01, 2004. University of Karlsruhe (TH), Karlsruhe (2004)

Dammertz, G.; Alberti, S.; Arnold, A.; Borie, E.; Erckmann, V.; Gantenbein, G.; Giguet, E.; Heidinger, R.; Hogge, J. P.; Illy, S. et al.; Kasparek, W.; Koppenburg, K.; Kuntze, M.; Laqua, H.; LeCloarec, G.; Legrand, G.; LeGoff, Y.; Leonhardt, W.; Lievin, C.; Magne, R.; Michel, G.; Müller, G.; Neffe, G.; Piosczyk, B.; Rzesnicki, T.; Schmid, M.; Thumm, M.; Tran, M. Q.: Development of multimegawatt gyrotrons for fusion plasma heating and current drive. In: Fifth IEEE International Vacuum Electronics Conference, pp. 28 - 29. 5th IEEE International Vacuum Electronics Conference (IVEC 2004), Monterey,CA, April 27, 2004 - April 29, 2004. IEEE Operations Center, Piscataway,NJ (2004)

Dammertz, G.; Alberti, S.; Arnold, A.; Brand, P.; Braune, H.; Borie, E.; Erckmann, V.; Gantenbein, G.; Giguet, E.; Heidinger, R. et al.; Hogge, J. P.; Illy, S.; Kasparek, W.; Koppenburg, K.; Kuntze, M.; Laqua, H.; LeCloarec, G.; Legrand, F.; Leonhardt, W.; Liévin, C.; Magne, R.; Michel, G.; Müller, G.; Neffe, G.; Piosczyk, B.; Schmid, M.; Schwörer, K.; Thumm, M.; Tran, M. Q.: Progress in the Development of 1 MW CW Gyrotrons for the Stellarator W7-X. In: 13th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating. Papers and Contributions. 13th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-13), Nizhny Novgorod, May 17, 2004 - May 20, 2004. (2004)

Gantenbein, G.; Erckmann, V.; Kasparek, W.; Plaum, B.; Laqua, H.; Michel, G.; Schwörer, K.; Bruschi, A.; Cirant, S.; Gandini, F. et al.; Verhoeven, A. G. A.; ECRH Group: First High-Power Tests of a Remote Steering Concept for ECRH/ECCD at ITER. In: Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW 2004/THz 2004), Tu11.2, pp. 291 - 292 (Eds. Thumm, M.; Wiesbeck, W.). Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW 2004/THz 2004), Karlsruhe, September 27, 2004 - October 01, 2004. University of Karlsruhe (TH), Karlsruhe (2004)

Gantenbein, G.; Kasparek, W.; Plaum, B.; Schwörer, K.; Grünert, M.; Erckmann, V.; Hollmann, F.; Jonitz, L.; Laqua, H.; Michel, G. et al.; Noke, F.; Purps, F.; Bruschi, A.; Cirant, S.; Gandini, F.; Verhoeven, A. G. A.; ECRH Group: High-power Tests of a Remote Steering Launcher Mock-up at 140 GHZ. In: 13th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating. Papers and Contributions. 13th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-13), Nizhny Novgorod, May 17, 2004 - May 20, 2004. (2004)

Kasparek, W.; Dammertz, G.; Erckmann, V.; Gantenbein, G.; Grünert, M.; Hollmann, F.; Jonitz, L.; Laqua, H.; Michel, G.; Noke, F. et al.; Plaum, B.; Purps, F.; Schultz, T.; Schwörer, K.; Weissgerber, M.: First high-power tests of the 140 GHz, 10 MW CW transmission system for ECRH on the stellarator W7-X. In: Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics (IRMMW 2004/THz 2004), Tu3.4, pp. 223 - 224 (Eds. Thumm, M.; Wiesbeck, W.). Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics, Karlsruhe, September 27, 2004 - October 01, 2004. University of Karlsruhe (TH), Karlsruhe (2004)

Hartfuss, H. J.; Erckmann, V.; Hirsch, M.; Laqua, H.: Problems with ECRH stray radiation in Wendelstein 7-X. In: 30th EPS Conference on Plasma Physics and Controlled Fusion, O-3.2C (Eds. Koch, R.; Lebedev, S.). 30th European Physical Society Conference on Plasma Physics and Controlled Fusion, St. Petersburg (RU), July 07, 2003 - July 11, 2003. European Physical Society, Geneva (2003)

Grigull, P.; McCormick, K.; Baldzuhn, J.; Burhenn, R.; Brakel, R.; Ehmler, H.; Feng, Y.; Gadelmeier, F.; Giannone, L.; Hartmann, D. et al.; Hildebrandt, D.; Hirsch, M.; Jaenicke, R.; Kisslinger, J.; Knauer, J.; König, R.; Kühner, G.; Laqua, H.; Naujoks, D.; Niedermeyer, H.; Ramasubramanian, N.; Rust, N.; Sardei, F.; Wagner, F.; Weller, A.; Wenzel, U.; W7-AS Team, Max Planck Institute for Plasma Physics, Max Planck Society: First island divertor experiments on the W7-AS stellarator. In: Proceedings of the 13th International Stellarator Workshop. 13th International Stellarator Workshop, Canberra, February 25, 2002 - March 01, 2002. Plasma Physics Princeton Lab., Princeton (2002)

Jaenicke, R.; Bäumel, S.; Baldzuhn, J.; Brakel, R.; Burhenn, R.; Ehmler, H.; Endler, M.; Erckmann, V.; Feng, Y.; Gadelmeier, F. et al.; Geiger, J.; Giannone, L.; Grigull, P.; Hartfuß, H.-J.; Hartmann, D.; Hildebrandt, D.; Hirsch, M.; Holzhauer, E.; Kick, M.; Kisslinger, J.; Klinger, T.; Klose, S.; Knauer, J.; König, R.; Kühner, G.; Laqua, H.; Maaßberg, H.; McCormick, K.; Narayanan, R.; Niedermeyer, H.; Pasch, E.; Ruhs, N.; Rust, N.; Saffert, J.; Sardei, F.; Schneider, F.; Schubert, M.; Speth, E.; Wagner, F.; Weller, A.; Wenzel, U.; Werner, A.; Würsching, E.: Overview on recent W7-AS results. In: Proceedings of the 13th International Stellarator Workshop, OI.6. 13th International Stellarator Workshop, Canberra, February 25, 2002 - March 01, 2002. Princeton Plasma Physics Lab., Princeton (2002)

Jaenicke, R.; Anton, M.; Baldzuhn, J.; Bäumel, S.; Brakel, R.; Burhenn, R.; Callaghan, H.; Cattanei, G.; Dorst, D.; Ehmler, H. et al.; Elsner, A.; Erckmann, V.; Feng, Y.; Fiedler, S.; Fuchs, C.; Gadelmeier, F.; Geiger, J.; Giannone, L.; Grigull, P.; Hacker, H.; Hartfuß, H.-J.; Hartmann, D.; Hildebrandt, D.; Hirsch, M.; Holzhauer, E.; Karger, F.; Kick, M.; Kisslinger, J.; Klose, S.; Knauer, J. P.; Koponen, J. P.; Koenig, R.; Kühner, G.; Laqua, H.; Ledl, L.; Maaßberg, H.; Niedermeyer, H.; McCormick, K.; Naujoks, D.; Ott, W.; Penningsfeld, F.-P.; Reimbold, S.; Ruhs, N.; Rust, N.; Saffert, J.; Sallander, E.; Sardei, F.; Schubert, M.; Speth, E.; Stroth, U.; Volpe, F.; Wagner, F.; Weller, A.; Wendland, C.; Werner, A.; Würsching, E.: Operational Boundaries on the Stellarator W7-AS at the Beginning of the Divertor Experiments. In: 18th Conference on Fusion Energy. 18th Conference on Fusion Energy, Sorrento, October 04, 2000 - October 10, 2000. (2001)

Maassberg, H.; Geiger, J.; Laqua, H.; Marushchenko, N. B.; Rome, M.; Wendland, C.; W7-AS Team: High Power ECCD Experiments at W7-AS. 18th Conference on Fusion Energy, Sorrento, October 04, 2000 - October 10, 2000., (2001)

Stroth, U.; Itoh, K.; Itoh, S.-I.; Hartfuss, H.-J.; Laqua, H.; ECRH Team; W7-AS Team: Internal Transport Barriers in W7-AS. In: Potential and Structure in Plasmas, pp. 43 - 47 (Eds. Tanaka, M.Y.; Fujisawa, A.; Inutake, M.). 11th International Toki Conference on Plasma Physics and Controlled Nuclear Fusion (ITC-11), Toki-city, December 05, 2000 - December 08, 2000. Japan Society of Plasma Science and Nuclear Fusion Research (2001)

Beidler, C. D.; Erckmann, V.; Gasparino, U.; Laqua, H.; Maaßberg, H.; Murakami, S.: The ECRH-Driven "Electron Root" at W7-AS. In: 12th International Stellarator Workshop, Vol. CD-ROM. 12th International Stellarator Workshop, Madison, WI, September 27, 1999 - October 01, 1999. (2000)

Geiger, J.; Erckmann, V.; Gasparino, U.; Laqua, H.; Kasilov, S. V.; Maaßberg, H.; Marushchenko, N. B.; Rome, M.; W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society: Fokker-Planck Estimation of Electron Distribution Functions for High Power ECCD at W7-AS. In: 12th International Stellarator Workshop, Vol. CD-ROM. 12th International Stellarator Workshop, Madison, WI, September 27, 1999 - October 01, 1999. (2000)

Laqua, H.; Erckmann, V.; Geiger, J.; Maaßberg, H.; W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society: Overview on ECRH Experiments at the Wendelstein-AS Stellarator. In: 12th International Stellarator Workshop, Vol. CD-ROM. 12th International Stellarator Workshop, Madison, WI, September 27, 1999 - October 01, 1999. (2000)

Koponen, J. P. T.; Geist, T.; Hartfuss, H.-J.; Laqua, H.; Stroth, U.; Wendland, C.; Würsching, E.; ECRH Team; W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society: Evidence for Convective Inward Particle Transport in W7-AS. In: 26th European Physical Society Conference on Controlled Fusion and Plasma Physics. Contributed Papers, P4.071 (Eds. Schweer, B.; Van Oost, G.; Vietzke, E.). 26th EPS Conference on Controlled Fusion and Plasma Physics, Maastricht, June 14, 1999 - June 18, 1999. European Physical Society, Geneva (1999)

Laqua, H.; Erckmann, V.; Maassberg, H.; W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society; ECRH-Group: Advanced High Power ECRH Launch Scenarios at the W7-AS Stellarator. In: 26th European Physical Society Conference on Controlled Fusion and Plasma Physics. Contributed Papers, P4.053 (Eds. Schweer, B.; Van Oost, G.; Vietzke, E.). 26th EPS Conference on Controlled Fusion and Plasma Physics, Maastricht, June 14, 1999 - June 18, 1999. European Physical Society, Geneva (1999)

Wagner, F.; Anton, M.; Baldzuhn, J.; Brakel, R.; Burhenn, R.; Cattanei, G.; Endler, M.; Erckmann, V.; Feng, Y.; Fiedler, S. et al.; Geiger, J.; Geist, T.; Giannone, L.; Grigull, P.; Hartfuss, H. J.; Hartmann, D.; Herre, G.; Hirsch, M.; Holzhauer, E.; Jaenecke, R.; Kick, M.; Kisslinger, J.; Koponen, J.; Kuehner, G.; Laqua, H. P.; Maassberg, H.; Sardei, F.; Stroth, U.; Weller, A.; Zoletnik, S.; Chatenet, J. H.; Dorst, D.; Elsner, A.; Goerner, C.; Hacher, H.; Karger, F.; Knauer, J.; Koenig, R.; Laqua, H.; McCormick, K.; Niedermeyer, H.; Nuehrenberg, C.; Ott, W.; Penningsfeld, F. P.; Salat, A.; Schneider, F.; Theimer, G.; Walter, H.; Wendland, C.; Werner, A.; Wuersching, E.; Zeiler, P.: Overview on W7-AS Results with Relevance for Wendelstein 7-X and the Low-Shear Stellarator Line. In: Fusion Energy 1998. 17th Conference Proceedings, pp. 115 - 128. 17th Conference on Fusion Energy, Yokohama, October 18, 1998 - October 24, 1998. International Atomic Energy Agency (IAEA), Vienna (1999)

Mueller, G. A.; Beaumont, B.; Foerster, W.; Libeyre, P.; Erckmann, V.; De Gentile, B.; Laqua, H.: High Voltage Regulator for Power Modulation of a Gyrotron with Voltage Depressed Collector. In: Fusion Technology 1998: Proceedings of the 20th Symposium on Fusion Technology, p. 877. 20th Symposium on Fusion Technology (SOFT 1998), Marseille (FR), November 07, 1998 - November 11, 1998. Association EURATOM-CEA, Saint Paul Lez Durance (1998)