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Your search keyword '"Thumm, Manfred"' showing total 11 results
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11 results on '"Thumm, Manfred"'

1. A new 3MW ECRH system at 105 GHz for WEST

Author

Delpech, Lena, Alberti, Stefano, Avramidis, Konstantinos, Ayreault, Aline, Batal, Tristan, Bernard, Jean-Michel, Bouquey, Francis, Chelis, Ioannis, Clairet, Frederic, Corbel, Elodie, Doceul, Louis, Durand, Frederic, Dumont, Remi, Fonghetti, Theo, Gantenbein, Gerd, Garibaldi, Pascal, Giruzzi, Gerardo, Goodman, Tim, Hogge, Jean-Philippe, Illy, Stefan, Jelonnek, John, Jin, Jianbo, Laqua, Heinrich, Legrand, Francois, Lievin, Christophe, Magaud, Philippe, Maget, Patrick, Manas, Pierre, Marsen, Stefan, Regal-Mezin, Xavier, Mollard, Patrick, Mouyon, David, Nicolas, Laurent, Ouerfelli, Adam, Pagonakis, Ioannis, Robinet, Benjamin, Ruess, Tobias, Santraine, Benjamin, Thumm, Manfred, and Ioannidis, Zisis

Published
2023
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2. Basic design considerations for a frequency step-tunable electron cyclotron wave system to suppress NTMs in DEMO

Author

Wu, Chuanren, Aiello, Gaetano, Avramidis, Konstantinos A., Bruschi, Alessandro, Fable, Emiliano, Franke, Thomas, Gantenbein, Gerd, Garavaglia, Saul, Granucci, Gustavo, Illy, Stefan, Janky, Filip, Jelonnek, John, Kudláček, Ondřej, Moro, Alessandro, Poli, Emanuele, Ruess, Tobias, Scherer, Theo, Schramm, Raphael, Siccinio, Mattia, Snicker, Antti, Strauß, Dirk, Suárez López, Guillermo, Tardini, Giovanni, Thumm, Manfred, Tran, Minh Quang, and Zohm, Hartmut

Published
2021
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3. Towards a 1.5 MW, 140 GHz gyrotron for the upgraded ECRH system at W7-X

Author

Avramidis, Konstantinos A., Ioannidis, Zisis C., Aiello, Gaetano, Bénin, Patrick, Chelis, Ioannis, Dinklage, Andreas, Gantenbein, Gerd, Illy, Stefan, Jelonnek, John, Jin, Jianbo, Laqua, Heinrich P., Leggieri, Alberto, Legrand, François, Marek, Alexander, Marsen, Stefan, Pagonakis, Ioannis Gr., Ruess, Tobias, Rzesnicki, Tomasz, Scherer, Theo, Strauss, Dirk, Thumm, Manfred, Tigelis, Ioannis, Wagner, Dietmar, Weggen, Jörg, and Wolf, Robert C.

Published
2021
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4. EU DEMO EC system preliminary conceptual design

Author

Garavaglia, Saul, Aiello, Gaetano, Alberti, Stefano, Avramidis, Konstantinos, Bruschi, Alessandro, Chelis, Ioannis G., Franck, Joachim, Gantenbein, Gerd, Granucci, Gustavo, Grossetti, Giovanni, Hizanidis, Kyriakos, Illy, Stefan, Jelonnek, John, Kalaria, Parth, Latsas, George, Moro, Alessandro, Pagonakis, Ioannis, Peponis, Dimitrios V., Poli, Emanuele, Rispoli, Natale, Ruess, Sebastian, Rzesnicki, Tomasz, Scherer, Theo, Strauss, Dirk, Thumm, Manfred, Tigelis, Ioannis, Tsironis, Christos, Wu, Chuanren, Franke, Thomas, and Tran, Minh Quang

Published
2018
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6. Wendelstein 7-X on the path to long-pulse high-performance operation

Author

W7-X Team, Endler, M., Baldzuhn, J., Beidler, C. D., Bosch, H.-S., Bozhenkov, S., Buttenschön, B., Dinklage, A., Fellinger, J., Feng, Y., Fuchert, G., Gao, Y., Geiger, J., Grulke, O., Hartmann, D., Jakubowski, M., König, R., Laqua, H. P., Lazerson, S., McNeely, P., Naujoks, D., Neuner, U., Otte, M., Pasch, E., Sunn Pedersen, T., Perseo, V., Puig Sitjes, A., Rahbarnia, K., Rust, N., Schmitz, O., Spring, A., Stange, T., Stechow, A. von, Turkin, Y., Wang, E., Wolf, R. C., Gantenbein, Gerd, Huber, Martina, Illy, Stefan, Jelonnek, John, Kobarg, Thorsten, Lang, Rouven, Leonhardt, Wolfgang, Mellein, Daniel, Papenfuß, Daniel, Scherer, Theo, Thumm, Manfred, Wadle, Simone, Weggen, Jörg, and W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society

Subjects
Technology, Optimisation, Steady-state, Stellarator, Wendelstein 7-X, Nuclear engineering, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, law.invention, Data acquisition, law, Range (aeronautics), 0103 physical sciences, Water cooling, General Materials Science, 010306 general physics, Civil and Structural Engineering, Steady state, Mechanical Engineering, Fusion power, Nuclear Energy and Engineering, Path (graph theory), ddc:600
Abstract

The Wendelstein 7-X project is aimed at demonstrating that an optimised stellarator is an attractive candidate for a fusion reactor. This requires the achievement of a number of technical and physics goals. Several of these goals have already been achieved in the first three experimental campaigns. We shall exemplify this by a number of results. One important goal is the demonstration of quasi-steady-state operation at high plasma density and temperature for half an hour, which encompasses the physical and technical requirements of stable operation with density and impurity control, cw heating, water-cooled targets, particle exhaust, and an appropriate control and data acquisition system for long-pulse operation. In the previous experimental campaigns, with uncooled targets, stationary discharges for up to 25 s with 5 MW heating power and up to 100 s with 2 MW heating power were achieved. For the next operational phase, to start in 2022, water-cooled targets are being installed, water cooling will be provided for all first-wall components, and a number of further upgrades to plasma heating, vacuum and fuelling systems as well as diagnostics will become available. With this equipment, the further goals of the project will be tackled, including the stepwise extension of discharge intervals to the multi-minute range. The experimental results so far have confirmed the neoclassical theory underlying several of the optimisation goals. At the same time, they showed that an optimisation is also required with respect to anomalous transport. In the future operational phases we aim at building a solid theoretical, experimental and technical foundation for the design of a next-step stellarator device.

Published
2021

9. Status of the development of the EU 170 GHz/1 MW/CW gyrotron

Author

Pagonakis, Ioannis Gr., primary, Albajar, Ferran, additional, Alberti, Stefano, additional, Avramidis, Konstantinos, additional, Bonicelli, Tullio, additional, Braunmueller, Falk, additional, Bruschi, Alex, additional, Chelis, Ioannis, additional, Cismondi, Fabio, additional, Gantenbein, Gerd, additional, Hermann, Virgile, additional, Hesch, Klaus, additional, Hogge, Jean-Philippe, additional, Jelonnek, John, additional, Jin, Jianbo, additional, Illy, Stefan, additional, Ioannidis, Zisis C., additional, Kobarg, Thorsten, additional, Latsas, George P., additional, Legrand, Francois, additional, Lontano, Maurizio, additional, Piosczyk, Bernhard, additional, Rozier, Yoann, additional, Rzesnicki, Tomasz, additional, Samartsev, Andrey, additional, Schlatter, Christian, additional, Thumm, Manfred, additional, Tigelis, Ioannis G., additional, Tran, Minh-Quang, additional, Tran, Trach-Minh, additional, Weggen, Joerg, additional, and Vomvoridis, John L., additional

Published
2015
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