Search Results - "Erckmann, Volker"

Experimental investigation of the ECRH stray radiation during the start-up phase in Wendelstein 7-X by Moseev, Dmitry, Laqua, Heinrich, Marsen, Stefan, Stange, Torsten, Braune, Harald, Erckmann, Volker, Gellert, Florian, Oosterbeek, Johann Wilhelm, Wenzel, Uwe

“…Electron cyclotron resonance heating (ECRH) is the main heating mechanism in the Wendelstein 7-X stellarator (W7-X). W7-X is equipped with five absolutely…”
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140 GHz, 1 MW CW Gyrotron Development for Fusion Applications—Progress and Recent Results by Gantenbein, Gerd, Erckmann, Volker, Illy, Stefan, Kern, Stefan, Kasparek, Walter, Lechte, Carsten, Leonhardt, Wolfgang, Liévin, Christophe, Samartsev, Andrey, Schlaich, Andreas, Schmid, Martin, Thumm, Manfred

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Confirmation of the topology of the Wendelstein 7-X magnetic field to better than 1:100,000 by Pedersen, T. Sunn, Otte, M., Lazerson, S., Helander, P., Bozhenkov, S., Biedermann, C., Klinger, T., Wolf, R. C., Bosch, H. -S.

“…Fusion energy research has in the past 40 years focused primarily on the tokamak concept, but recent advances in plasma theory and computational power have led…”
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From Series Production of Gyrotrons for W7-X Toward EU-1 MW Gyrotrons for ITER by Jelonnek, John, Albajar, Ferran, Alberti, Stefano, Avramidis, Konstantinos, Benin, Patrick, Bonicelli, Tullio, Cismondi, Fabio, Erckmann, Volker, Gantenbein, Gerd, Hesch, Klaus, Hogge, Jean-Philippe, Illy, Stefan, Ioannidis, Zisis C., Jin, Jianbo, Laqua, Heinrich, Latsas, George P., Legrand, Francois, Michel, Georg, Pagonakis, Ioannis G., Piosczyk, Bernhard, Rozier, Yoann, Rzesnicki, Tomasz, Tigelis, Ioannis G., Thumm, Manfred, Tran, Minh Quang, Vomvoridis, John L.

“…Europe is devoting significant joint efforts to develop and to manufacture MW-level gyrotrons for electron cyclotron heating and current drive of future plasma…”
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140 GHz, 1 MW CW Gyrotron Development for Fusion Applications—Progress and Recent Results by Gantenbein, Gerd, Erckmann, Volker, Illy, Stefan, Kern, Stefan, Kasparek, Walter, Lechte, Carsten, Leonhardt, Wolfgang, Liévin, Christophe, Samartsev, Andrey, Schlaich, Andreas, Schmid, Martin, Thumm, Manfred

“…A 10 MW, 140 GHz ECH system is currently under construction for the stellarator W7-X. The RF power will be provided by 10 gyrotrons. A European collaboration…”
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Advanced electron cyclotron heating and current drive experiments on the stellarator Wendelstein 7-X by Stange, Torsten, Laqua, Heinrich Peter, Beurskens, Marc, Bosch, Hans-Stephan, Bozhenkov, Sergey, Brakel, Rudolf, Braune, Harald, Brunner, Kai Jakob, Cappa, Alvaro, Dinklage, Andreas, Erckmann, Volker, Fuchert, Golo, Gantenbein, Gerd, Gellert, Florian, Grulke, Olaf, Hartmann, Dirk, Hirsch, Matthias, Höfel, Udo, Kasparek, Walter, Knauer, Jens, Langenberg, Andreas, Marsen, Stefan, Marushchenko, Nikolai, Moseev, Dmitry, Pablant, Novomir, Pasch, Ekkehard, Rahbarnia, Kian, Mora, Humberto Trimino, Tsujimura, Toru, Turkin, Yuriy, Wauters, Tom, Wolf, Robert

“…During the first operational phase (OP 1.1) of Wendelstein 7-X (W7-X) electron cyclotron resonance heating (ECRH) was the exclusive heating method and provided…”
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EU Megawatt-Class 140-GHz CW Gyrotron by Thumm, Manfred, Alberti, Stefano, Arnold, Andreas, Brand, Peter, Braune, Harald, Dammertz, Gnter, Erckmann, Volker, Gantenbein, Gerd, Giguet, Eric, Heidinger, Roland, Hogge, Jean-Philippe, Illy, Stefan, Kasparek, Walter, Laqua, Heinrich Peter, Legrand, Francois, Leonhardt, Wolfgang, Lievin, Christophe, Michel, Georg, Neffe, Gnter, Piosczyk, Bernhard, Schmid, Martin, Schworer, Karl, Tran, Minh Quang

“…The first series tube of the gyrotrons for the 10-MW electron cyclotron resonance heating system of the stellarator W7-X was tested at Forschungszentrum…”
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Matching of the ECRH transmission line of W7-X by Michel, Georg, Erckmann, Volker, Hollmann, Frank, Jonitz, Lothar, Kasparek, Walter, Laqua, Heinrich, Lechte, Carsten, Marushchenko, Nikolai, Plaum, Burkhard, Turkin, Yuriy, Weißgerber, Michael

“…The polarization of the directed ECRH power has to be matched to the plasma boundary with respect to the magnetic field at the density gradient region close to…”
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Technical developments at the KIT gyrotron test facility by Schmid, Martin, Erckmann, Volker, Gantenbein, Gerd, Illy, Stefan, Kern, Stefan, Liévin, Christophe, Samartsev, Andrey, Schlaich, Andreas, Rzesnicki, Thomáz, Thumm, Manfred

“…Parasitic beam tunnel oscillations have been discovered on some of the series production gyrotrons for W7-X and also on the coaxial pre-prototype gyrotron for…”
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Diplexers for Power Combination and Switching in High Power ECRH Systems by Bruschi, Alex, Erckmann, Volker, Kasparek, Walter, Petelin, Michael I, Thumm, Manfred, Bin, William, Cirant, Sante, D'Arcangelo, Ocleto, Hollmann, Frank, Lubyako, Lev, Noke, Frank, Plaum, Burkhard, Purps, Frank, Zohm, Hartmut

“…Electron Cyclotron Resonance Heating (ECRH) systems for next step large fusion-devices operate at a Continuous Wave (CW) power well beyond 10 MW generated by a…”
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High-power gyrotron development at Forschungszentrum Karlsruhe for fusion applications by Dammertz, G., Alberti, S., Arnold, A., Bariou, D., Brand, P., Braune, H., Erckmann, V., Dumbrajs, O., Gantenbein, G., Giguet, E., Heidinger, R., Hogge, J.-P., Illy, S., Jin, J., Kasparek, W., Koppenburg, K., Laqua, H.P., Legrand, F., Leonhardt, W., Lievin, C., Michel, G., Neffe, G., Piosczyk, B., Prinz, O., Rzesnicki, T., Schmid, M., Thumm, M., Minh Quang Tran, Yang, X., Yovchev, I.

“…In the first part of this paper, the status of the 140-GHz continuously operated gyrotrons with an output power of 1 MW for the stellarator Wendelstein 7-X…”
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Progress in the 10-MW 140-GHz ECH System for the Stellarator W7-X by Thumm, M., Brand, P., Braune, H., Dammertz, G., Erckmann, V., Gantenbein, G., Illy, S., Kasparek, W., Laqua, H.P., Lechte, C., Leonhardt, W., Michel, G., Neffe, G., Piosczyk, B., Schmid, M., Weissgerber, M.

“…During the last years, electron cyclotron heating (ECH) was proven to be one of the most attractive heating schemes for stellarators because it provides…”
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Development of multimegawatt gyrotrons for fusion plasma heating and current drive by Dammertz, G., Alberti, S., Arnold, A., Bariou, D., Borie, E., Brand, P., Braune, H., Erckmann, V., Gantenbein, G., Giguet, E., Heidinger, R., Hogge, J.-P., Illy, S., Jin, J., Kasparek, W., Koppenburg, K., Laqua, H.P., Legrand, F., Leonhardt, W., Lievin, C., Magne, R., Michel, G., Muller, G., Neffe, G., Piosczyk, B., Rzesnicki, T., Schmid, M., Thumm, M., Minhquang Tran, Yang, X.

“…High-frequency gyrotrons with high output power are mainly used for microwave heating and current drive in plasmas for thermonuclear fusion. The development of…”
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Diplexers for Power Combination and Switching in High Power ECRH Systems: SPECIAL ISSUE ON HIGH-POWER MICROWAVE GENERATION by BRUSCHI, Alex, ERCKMANN, Volker, NOKE, Frank, PLAUM, Burkhard, PURPS, Frank, ZOHM, Hartmut, KASPAREK, Walter, PETELIN, Michael I, THUMM, Manfred, BIN, William, CIRANT, Sante, D'ARCANGELO, Ocleto, HOLLMANN, Frank, LUBYAKO, Lev

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THALES TH1507 140 GHz 1 MW CW Gyrotron for W7-X Stellarator by Leggieri, Alberto, Jelonnek, John, Jin, Jianbo, Laqua, Heinrich, Legrand, Francois, Lievin, Christophe, Marchesin, Rodolphe, Pagonakis, Ioannis Gr, Rzesnicki, Tomasz, Thouvenin, Philippe, Thumm, Manfred, Alberti, Stefano, Wolf, Robert, Avramidis, Konstantinos A., Dammertz, Gunter, Erckmann, Volker, Gantenbein, Gerd, Hogge, Jean-Philippe, Illy, Stefan, Ioannidis, Zisis

“…The status of the THALES 140 GHz 1 MW CW industrial gyrotron program for the W7-X stellarator is discussed in this paper. The industrial design and…”
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Progress in the 10-MW ECRH system for the Stellarator W7-X by Dammertz, G., Braune, H., Erckmann, V., Gantenbein, G., Kasparek, W., Laqua, H.P., Leonhardt, W., Michel, G., Muller, G., Neffe, G., Piosczyk, B., Schmid, M., Thumm, M.K.

“…During the last few years, electron-cyclotron resonance heating (ECRH) and electron-cyclotron current drive (ECCD) has proven to be one of the most attractive…”
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Quasi-optical components for microwave control and remote sensing by Erckmann, Volker, Kasparek, Walter, Klooster, Kees Van't, Koshurinov, Yury, Kubo, Shin, Petelin, Michael, Sakamoto, Keishi, Thumm, Manfred, Wu, Zin

“…The microwave vacuum electronics is regarded to make sense only if producing sufficiently high powers at sufficiently high frequencies. And if intense…”
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Design of a remote steering ECRH launcher for the Stellerator Wendelstein 7-X by Plaum, Burkhard, Erckmann, Volker, Kasparek, Walter, Laqua, Heinrich, Lechte, Carsten, Weisgerber, Michael

“…The overall design of the remote steering antenna, which is foreseen for the Stellerator Wendelstein 7-X, is presented. Issues, which arise from the…”
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Adaptive mirror control for an optical resonator cavity by Doelman, Niek, van den Braber, Rens, Kasparek, Walter, Erckmann, Volker, Bongers, Waldo, Stober, Jorg, Fritz, Erik, Dekker, Bert, Krijger, Bob, Hollmann, Frank, Michel, Georg, Noke, Frank, Purps, Frank, Maraschek, Marc, Monaco, Francesco, Muller, Stefan, Schutz, Harald, Wagner, Dietmar

“…An adaptive mirror control strategy for tuning an optical resonator is described. The control approach is model-free and uses a small-amplitude perturbation…”
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High power gyrotron development at KIT for ECH&CD of fusion plasmas by Jelonnek, J., Alberti, S., Avramidis, K., Braune, H., Erckmann, V., Gantenbein, G., Hogge, J-P, Illy, S., Jianbo Jin, Kern, S., Noke, F., Pagonakis, I., Piosczyk, B., Purps, F., Rzesnicki, T., Samartsev, A., Schlaich, A., Schmid, M., Thumm, M.

“…ECH & CD is widely used in fusion plasmas. Gyrotrons are applied as power sources as they offer continuous wave operation at MW power level. This contribution…”
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