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382 results on '"Tran, M. Q."'

1. Developing Structural, High-heat flux and Plasma Facing Materials for a near-term DEMO Fusion Power Plant: the EU Assessment

Author: Stork, D., Agostini, P., Boutard, J-L., Buckthorpe, D., Diegele, E., Dudarev, S. L., English, C., Federici, G., Gilbert, M. R., Gonzalez, S., Ibarra, A., Linsmeier, Ch., Puma, A. Li, Marbach, G., Morris, P. F., Packer, L. W., Raj, B., Rieth, M., Tran, M. Q., Ward, D. J., and Zinkle, S. J.
Subjects: Physics - Instrumentation and Detectors
Abstract: The findings of the EU 'Materials Assessment Group' (MAG), within the 2012 EU Fusion Roadmap exercise, are discussed. MAG analysed the technological readiness of structural, plasma facing and high heat flux materials for a DEMO concept to be constructed in the early 2030s, proposing a coherent strategy for R&D up to a DEMO construction decision. Technical consequences for the materials required and the development, testing and modelling programmes, are analysed using: a systems engineering approach, considering reactor operational cycles, efficient maintenance and inspection requirements, and interaction with functional materials/coolants; and a project-based risk analysis, with R&D to mitigate risks from material shortcomings including development of specific risk mitigation materials., Comment: 58 pages, 9 figures,Proceedings of the 16th International Conference on Fusion Reactor Materials (ICFRM-16), Beijing, China, 20th-26th October, 2013
Published: 2014
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2. Recent experiments with the European 1MW, 170GHz industrial CW and short-pulse gyrotrons for ITER

Author: Ioannidis, Z. C., Albajar, F., Alberti, S., Avramidis, K. A., Bin, W., Bonicelli, T., Bruschi, A., Chelis, J., Fanale, F., Gantenbein, G., Genoud, J., Hogge, J.-P., Hermann, V., Illy, S., Jelonnek, J., Jin, J., Kasparek, W., Latsas, G. P., Legrand, F., Lechte, C., Pagonakis, I. Gr., Rzesnicki, T., Sánchez, F., Schlatter, C., Schmid, M., Tigelis, I. G., Thumm, M., Tran, M. Q., Zisis, A., and Zein, A.
Published: 2019
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3. Parasitic Oscillations in Smooth-Wall Circular Symmetric Gyrotron Beam Ducts

Author: Genoud, J., Alberti, S., Tran, T. M., Le Bars, G., Kaminski, P., Hogge, J.-Ph., Avramidis, K. A., and Tran, M. Q.
Published: 2019
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4. 1427P Predicting overall survival and prognostic indicator genes in esophagogastric cancer patients using machine learning and bioinformatics analysis

Author: Viet-Nhi, N-K., Chen, P-Y., Kieu Viet Nhu, N., Nguyen Quoc Khanh, L., Tsao, M-K., Tran, M-Q., Vu Cong, T., Tseng, H., and Hung, S-H.
Published: 2024
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5. Generalized Radiation Boundary Conditions in Gyrotron Oscillator Modeling

Author: Alberti, S., Tran, T. M., Brunner, S., Braunmueller, F., Genoud, J., Hogge, J.-Ph., and Tran, M. Q.
Published: 2015
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6. A Variable Structure Control Scheme Proposal for the Tokamak à Configuration Variable

Author: Marco, Aitor, Garrido, Aitor J., Coda, Stefano, Garrido, Izaskun, Ahn, J., Albanese, R., Alberti, S., Alessi, E., Allan, S., Anand, H., Anastassiou, G., Andrebe, Y., Angioni, C., Ariola, M., Bernert, M., Beurskens, M., Bin, W., Blanchard, P., Blanken, T. C., Boedo, J. A., Bolzonella, T., Bouquey, F., Braunmueller, F. H., Bufferand, H., Buratti, P., Calabro, G., Camenen, Y., Carnevale, D., Carpanese, F., Causa, F., Cesario, R., Chapman, I. T., Chellai, O., Choi, D., Cianfarani, C., Ciraolo, G., Citrin, J., Costea, S., Crisanti, F., Cruz, N., Czarnecka, A., Decker, J., De Masi, G., De Tommasi, G., Douai, D., Dunne, M., Duval, B. P., Eich, T., Elmore, S., Esposito, B., Faitsch, M., Fasoli, A., Fedorczak, N., Felici, F., Fevrier, O., Ficker, O., Fietz, S., Fontana, M., Frassinetti, L., Furno, I., Galeani, S., Gallo, A., Galperti, C., Garavaglia, S., Garrido, I., Geiger, B., Giovannozzi, E., Gobbin, M., Goodman, T. P., Gorini, G., Gospodarczyk, M., Granucci, G., Graves, J. P., Guirlet, R., Hakola, A., Ham, C., Harrison, J., Hawke, J., Hennequin, P., Hnat, B., Hogeweij, D., Hogge, J. -Ph., Honore, C., Hopf, C., Horacek, J., Huang, Z., Igochine, V., Innocente, P., Schrittwieser, C. Ionita, Isliker, H., Jacquier, R., Jardin, A., Kamleitner, J., Karpushov, A., Keeling, D. L., Kirneva, N., Kong, M., Koubiti, M., Kovacic, J., Kramer-Flecken, A., Krawczyk, N., Kudlacek, O., Labit, B., Lazzaro, E., Le, H. B., Lipschultz, B., Llobet, X., Lomanowski, B., Loschiavo, V. P., Lunt, T., Maget, P., Maljaars, E., Malygin, A., Maraschek, M., Marini, C., Martin, P., Martin, Y., Mastrostefano, S., Maurizio, R., Mavridis, M., Mazon, D., McAdams, R., McDermott, R., Merle, A., Meyer, H., Militello, F., Miron, I. G., Cabrera, P. A. Molina, Moret, J. -M., Moro, A., Moulton, D., Naulin, V., Nespoli, F., Nielsen, A. H., Nocente, M., Nouailletas, R., Nowak, S., Odstrcil, T., Papp, G., Paprok, R., Pau, A., Pautasso, G., Ridolfini, V. Pericoli, Piovesan, P., Piron, C., Pisokas, T., Porte, L., Preynas, M., Ramogida, G., Rapson, C., Rasmussen, J. Juul, Reich, M., Reimerdes, H., Reux, C., Ricci, P., Rittich, D., Riva, F., Robinson, T., Saarelma, S., Saint-Laurent, F., Sauter, O., Scannell, R., Schlatter, Ch., Schneider, B., Schneider, P., Schrittwieser, R., Sciortino, F., Sertoli, M., Sheikh, U., Sieglin, B., Silva, M., Sinha, J., Sozzi, C., Spolaore, M., Stange, T., Stoltzfus-Dueck, T., Tamain, P., Teplukhina, A., Testa, D., Theiler, C., Thornton, A., Tophoj, L., Tran, M. Q., Tsironis, C., Tsui, C., Uccello, A., Vartanian, S., Verdoolaege, G., Verhaegh, K., Vermare, L., Vianello, N., Vijvers, W. A. J., Vlahos, L., Vu, N. M. T., Walkden, N., Wauters, T., Weisen, H., Wischmeier, M., Zestanakis, P., Zuin, M., and TCV Team
Subjects: Variable structure control, Tokamak, Article Subject, General Computer Science, Plasma heating, Computer science, PID controller, 01 natural sciences, 7. Clean energy, lcsh:QA75.5-76.95, 010305 fluids & plasmas, law.invention, Control-system, Control theory, law, 0103 physical sciences, Nuclear fusion, 010306 general physics, Real-time control, Multidisciplinary, Plasma, Fusion power, Magnetic field, Control system, lcsh:Electronic computers. Computer science, Robust control, Tokamak à configuration variable
Abstract: Fusion power is the most significant prospects in the long-term future of energy in the sense that it composes a potentially clean, cheap, and unlimited power source that would substitute the widespread traditional nonrenewable energies, reducing the geographical dependence on their sources as well as avoiding collateral environmental impacts. Although the nuclear fusion research started in the earlier part of 20th century and the fusion reactors have been developed since the 1950s, the fusion reaction processes achieved have not yet obtained net power, since the generated plasma requires more energy to achieve and remain in necessary particular pressure and temperature conditions than the produced profitable energy. For this purpose, the plasma has to be confined inside a vacuum vessel, as it is the case of the Tokamak reactor, which consists of a device that generates magnetic fields within a toroidal chamber, being one of the most promising solutions nowadays. However, the Tokamak reactors still have several issues such as the presence of plasma instabilities that provokes a decay of the fusion reaction and, consequently, a reduction in the pulse duration. In this sense, since long pulse reactions are the key to produce net power, the use of robust and fast controllers arises as a useful tool to deal with the unpredictability and the small time constant of the plasma behavior. In this context, this article focuses on the application of robust control laws to improve the controllability of the plasma current, a crucial parameter during the plasma heating and confinement processes. In particular, a variable structure control scheme based on sliding surfaces, namely, a sliding mode controller (SMC) is presented and applied to the plasma current control problem. In order to test the validity and goodness of the proposed controller, its behavior is compared to that of the traditional PID schemes applied in these systems, using the RZIp model for the Tokamak à Configuration Variable (TCV) reactor. The obtained results are very promising, leading to consider this controller as a strong candidate to enhance the performance of the PID-based controllers usually employed in this kind of systems.
Published: 2019

7. Experimental Results of the EU ITER Prototype Gyrotrons

Author: Gantenbein G., Albajar F., Alberti S., Avramidis K., Bin W., Bonicelli T., Bruschi A., Chelis J., Fanale F., Legrand F., Hermann V., Hogge J.-P., Illy S., Ioannidis Z. C., Jin J., Jelonnek J., Kasparek W., Latsas G. P., Lechte C., Lontano M., Pagonakis I. G., Rzesnicki T., Schlatter C., Schmid M., Tigelis I. G., Thumm M., Tran M. Q., Vomvoridis J. L., Zein A., and Zisis A.
Subjects: Physics, QC1-999
Abstract: The European 1 MW, 170 GHz CW industrial prototype gyrotron for ECRH&CD on ITER was under test at the KIT test facility during 2016. In order to optimize the gyrotron operation, the tube was thoroughly tested in the short-pulse regime, with pulse lengths below 10 ms, for a wide range of operational parameters. The operation was extended to longer pulses with a duration of up to 180 s. In this work we present in detail the achievements and the challenges that were faced during the long-pulse experimental campaign.
Published: 2017
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8. Millimeter-wave beam scattering and induced broadening by plasma turbulence in the TCV tokamak

Author: Chellai, O, Alberti, S, Furno, I, Goodman, T, Maj, O, Merlo, G, Poli, E, Ricci, P, Riva, F, Weber, H, Coda, S, Agostini, M, Albanese, R, Alessi, E, Allan, S, Allcock, J, Ambrosino, R, Anand, H, Andrebe, Y, Arnichand, H, Auriemma, F, Ayllon-Guerola, J, Bagnato, F, Ball, J, Baquero-Ruiz, M, Beletskii, A, Bernert, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bogar, O, Bolzonella, T, Bombarda, F, Bonanomi, N, Bouquey, F, Bowman, C, Brida, D, Bucalossi, J, Buermans, J, Bufferand, H, Buratti, P, Calabro, G, Calacci, L, Camenen, Y, Carnevale, D, Carpanese, F, Carr, M, Carraro, L, Casolari, A, Causa, F, Cerovsky, J, Chmielewski, P, Choi, D, Christen, N, Ciraolo, G, Cordaro, L, Costea, S, Cruz, N, Czarnecka, A, Dal Molin, A, David, P, Decker, J, De Oliveira, H, Douai, D, Dreval, M, Dudson, B, Dunne, M, Duval, B, Eich, T, Elmore, S, Embreus, O, Esposito, B, Faitsch, M, Farnik, M, Fasoli, A, Fedorczak, N, Felici, F, Feng, S, Feng, X, Ferro, G, Fevrier, O, Ficker, O, Fil, A, Fontana, M, Frassinetti, L, Gahle, D, Galassi, D, Galazka, K, Gallo, A, Galperti, C, Garavaglia, S, Garcia, J, Garcia-Munoz, M, Garrido, A, Garrido, I, Gath, J, Geiger, B, Giruzzi, G, Gobbin, M, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Gruca, M, Gyergyek, T, Hakola, A, Happel, T, Harrer, G, Harrison, J, Havlickova, E, Hawke, J, Henderson, S, Hennequin, P, Hesslow, L, Hogeweij, D, Hogge, J, Hopf, C, Hoppe, M, Horacek, J, Huang, Z, Hubbard, A, Iantchenko, A, Igochine, V, Innocente, P, Ionita Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kappatou, A, Karpushov, A, Kazantzidis, P, Keeling, D, Kirneva, N, Komm, M, Kong, M, Kovacic, J, Krawczyk, N, Kudlacek, O, Kurki-Suonio, T, Kwiatkowski, R, Labit, B, Lazzaro, E, Linehan, B, Lipschultz, B, Llobet, X, Lombroni, R, Loschiavo, V, Lunt, T, Macusova, E, Madsen, J, Maljaars, E, Mantica, P, Maraschek, M, Marchetto, C, Marco, A, Mariani, A, Marini, C, Martin, Y, Matos, F, Maurizio, R, Mavkov, B, Mazon, D, Mccarthy, P, Mcdermott, R, Menkovski, V, Merle, A, Meyer, H, Micheletti, D, Militello, F, Mitosinkova, K, Mlynar, J, Moiseenko, V, Molina Cabrera, P, Morales, J, Moret, J, Moro, A, Mumgaard, R, Naulin, V, Nem, R, Nespoli, F, Nielsen, A, Nielsen, S, Nocente, M, Nowak, S, Offeddu, N, Orsitto, F, Paccagnella, R, Palha, A, Papp, G, Pau, A, Pavlichenko, R, Perek, A, Pericoli Ridolfini, V, Pesamosca, F, Piergotti, V, Pigatto, L, Piovesan, P, Piron, C, Plyusnin, V, Porte, L, Pucella, G, Puiatti, M, Putterich, T, Rabinski, M, Juul Rasmussen, J, Ravensbergen, T, Reich, M, Reimerdes, H, Reimold, F, Reux, C, Ricci, D, Rispoli, N, Rosato, J, Saarelma, S, Salewski, M, Salmi, A, Sauter, O, Scheffer, M, Schlatter, C, Schneider, B, Schrittwieser, R, Sharapov, S, Sheeba, R, Sheikh, U, Shousha, R, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stipani, L, Strand, P, Tala, T, Tema Biwole, A, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tomaz, G, Tomes, M, Tran, M, Tsironis, C, Tsui, C, Urban, J, Valisa, M, Vallar, M, Van Vugt, D, Vartanian, S, Vasilovici, O, Verhaegh, K, Vermare, L, Vianello, N, Viezzer, E, Vijvers, W, Villone, F, Voitsekhovitch, I, Vu, N, Walkden, N, Wauters, T, Weiland, M, Weisen, H, Wensing, M, Wiesenberger, M, Wilkie, G, Wischmeier, M, Wu, K, Yoshida, M, Zagorski, R, Zanca, P, Zebrowski, J, Zisis, A, Zuin, M, Chellai O., Alberti S., Furno I., Goodman T. P., Maj O., Merlo G., Poli E., Ricci P., Riva F., Weber H., Coda S., Agostini M., Albanese R., Alessi E., Allan S., Allcock J., Ambrosino R., Anand H., Andrebe Y., Arnichand H., Auriemma F., Ayllon-Guerola J. M., Bagnato F., Ball J., Baquero-Ruiz M., Beletskii A. A., Bernert M., Bin W., Blanchard P., Blanken T. C., Boedo J. A., Bogar O., Bolzonella T., Bombarda F., Bonanomi N., Bouquey F., Bowman C., Brida D., Bucalossi J., Buermans J., Bufferand H., Buratti P., Calabro G., Calacci L., Camenen Y., Carnevale D., Carpanese F., Carr M., Carraro L., Casolari A., Causa F., Cerovsky J., Chmielewski P., Choi D., Christen N., Ciraolo G., Cordaro L., Costea S., Cruz N., Czarnecka A., Dal Molin A., David P., Decker J., De Oliveira H., Douai D., Dreval M. B., Dudson B., Dunne M., Duval B. P., Eich T., Elmore S., Embreus O., Esposito B., Faitsch M., Farnik M., Fasoli A., Fedorczak N., Felici F., Feng S., Feng X., Ferro G., Fevrier O., Ficker O., Fil A., Fontana M., Frassinetti L., Gahle D. S., Galassi D., Galazka K., Gallo A., Galperti C., Garavaglia S., Garcia J., Garcia-Munoz M., Garrido A. J., Garrido I., Gath J., Geiger B., Giruzzi G., Gobbin M., Gorini G., Gospodarczyk M., Granucci G., Graves J. P., Gruca M., Gyergyek T., Hakola A., Happel T., Harrer G. F., Harrison J., Havlickova E., Hawke J., Henderson S., Hennequin P., Hesslow L., Hogeweij D., Hogge J. -Ph., Hopf C., Hoppe M., Horacek J., Huang Z., Hubbard A., Iantchenko A., Igochine V., Innocente P., Ionita Schrittwieser C., Isliker H., Jacquier R., Jardin A., Kappatou A., Karpushov A., Kazantzidis P. -V., Keeling D., Kirneva N., Komm M., Kong M., Kovacic J., Krawczyk N., Kudlacek O., Kurki-Suonio T., Kwiatkowski R., Labit B., Lazzaro E., Linehan B., Lipschultz B., Llobet X., Lombroni R., Loschiavo V. P., Lunt T., MacUsova E., Madsen J., Maljaars E., Mantica P., Maraschek M., Marchetto C., Marco A., Mariani A., Marini C., Martin Y., Matos F., Maurizio R., Mavkov B., Mazon D., McCarthy P., McDermott R., Menkovski V., Merle A., Meyer H., Micheletti D., Militello F., Mitosinkova K., Mlynar J., Moiseenko V., Molina Cabrera P. A., Morales J., Moret J. -M., Moro A., Mumgaard R. T., Naulin V., Nem R. D., Nespoli F., Nielsen A. H., Nielsen S. K., Nocente M., Nowak S., Offeddu N., Orsitto F. P., Paccagnella R., Palha A., Papp G., Pau A., Pavlichenko R. O., Perek A., Pericoli Ridolfini V., Pesamosca F., Piergotti V., Pigatto L., Piovesan P., Piron C., Plyusnin V., Porte L., Pucella G., Puiatti M. E., Putterich T., Rabinski M., Juul Rasmussen J., Ravensbergen T., Reich M., Reimerdes H., Reimold F., Reux C., Ricci D., Rispoli N., Rosato J., Saarelma S., Salewski M., Salmi A., Sauter O., Scheffer M., Schlatter Ch., Schneider B. S., Schrittwieser R., Sharapov S., Sheeba R. R., Sheikh U., Shousha R., Silva M., Sinha J., Sozzi C., Spolaore M., Stipani L., Strand P., Tala T., Tema Biwole A. S., Teplukhina A. A., Testa D., Theiler C., Thornton A., Tomaz G., Tomes M., Tran M. Q., Tsironis C., Tsui C. K., Urban J., Valisa M., Vallar M., Van Vugt D., Vartanian S., Vasilovici O., Verhaegh K., Vermare L., Vianello N., Viezzer E., Vijvers W. A. J., Villone F., Voitsekhovitch I., Vu N. M. T., Walkden N., Wauters T., Weiland M., Weisen H., Wensing M., Wiesenberger M., Wilkie G., Wischmeier M., Wu K., Yoshida M., Zagorski R., Zanca P., Zebrowski J., Zisis A., Zuin M., Chellai, O, Alberti, S, Furno, I, Goodman, T, Maj, O, Merlo, G, Poli, E, Ricci, P, Riva, F, Weber, H, Coda, S, Agostini, M, Albanese, R, Alessi, E, Allan, S, Allcock, J, Ambrosino, R, Anand, H, Andrebe, Y, Arnichand, H, Auriemma, F, Ayllon-Guerola, J, Bagnato, F, Ball, J, Baquero-Ruiz, M, Beletskii, A, Bernert, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bogar, O, Bolzonella, T, Bombarda, F, Bonanomi, N, Bouquey, F, Bowman, C, Brida, D, Bucalossi, J, Buermans, J, Bufferand, H, Buratti, P, Calabro, G, Calacci, L, Camenen, Y, Carnevale, D, Carpanese, F, Carr, M, Carraro, L, Casolari, A, Causa, F, Cerovsky, J, Chmielewski, P, Choi, D, Christen, N, Ciraolo, G, Cordaro, L, Costea, S, Cruz, N, Czarnecka, A, Dal Molin, A, David, P, Decker, J, De Oliveira, H, Douai, D, Dreval, M, Dudson, B, Dunne, M, Duval, B, Eich, T, Elmore, S, Embreus, O, Esposito, B, Faitsch, M, Farnik, M, Fasoli, A, Fedorczak, N, Felici, F, Feng, S, Feng, X, Ferro, G, Fevrier, O, Ficker, O, Fil, A, Fontana, M, Frassinetti, L, Gahle, D, Galassi, D, Galazka, K, Gallo, A, Galperti, C, Garavaglia, S, Garcia, J, Garcia-Munoz, M, Garrido, A, Garrido, I, Gath, J, Geiger, B, Giruzzi, G, Gobbin, M, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Gruca, M, Gyergyek, T, Hakola, A, Happel, T, Harrer, G, Harrison, J, Havlickova, E, Hawke, J, Henderson, S, Hennequin, P, Hesslow, L, Hogeweij, D, Hogge, J, Hopf, C, Hoppe, M, Horacek, J, Huang, Z, Hubbard, A, Iantchenko, A, Igochine, V, Innocente, P, Ionita Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kappatou, A, Karpushov, A, Kazantzidis, P, Keeling, D, Kirneva, N, Komm, M, Kong, M, Kovacic, J, Krawczyk, N, Kudlacek, O, Kurki-Suonio, T, Kwiatkowski, R, Labit, B, Lazzaro, E, Linehan, B, Lipschultz, B, Llobet, X, Lombroni, R, Loschiavo, V, Lunt, T, Macusova, E, Madsen, J, Maljaars, E, Mantica, P, Maraschek, M, Marchetto, C, Marco, A, Mariani, A, Marini, C, Martin, Y, Matos, F, Maurizio, R, Mavkov, B, Mazon, D, Mccarthy, P, Mcdermott, R, Menkovski, V, Merle, A, Meyer, H, Micheletti, D, Militello, F, Mitosinkova, K, Mlynar, J, Moiseenko, V, Molina Cabrera, P, Morales, J, Moret, J, Moro, A, Mumgaard, R, Naulin, V, Nem, R, Nespoli, F, Nielsen, A, Nielsen, S, Nocente, M, Nowak, S, Offeddu, N, Orsitto, F, Paccagnella, R, Palha, A, Papp, G, Pau, A, Pavlichenko, R, Perek, A, Pericoli Ridolfini, V, Pesamosca, F, Piergotti, V, Pigatto, L, Piovesan, P, Piron, C, Plyusnin, V, Porte, L, Pucella, G, Puiatti, M, Putterich, T, Rabinski, M, Juul Rasmussen, J, Ravensbergen, T, Reich, M, Reimerdes, H, Reimold, F, Reux, C, Ricci, D, Rispoli, N, Rosato, J, Saarelma, S, Salewski, M, Salmi, A, Sauter, O, Scheffer, M, Schlatter, C, Schneider, B, Schrittwieser, R, Sharapov, S, Sheeba, R, Sheikh, U, Shousha, R, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stipani, L, Strand, P, Tala, T, Tema Biwole, A, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tomaz, G, Tomes, M, Tran, M, Tsironis, C, Tsui, C, Urban, J, Valisa, M, Vallar, M, Van Vugt, D, Vartanian, S, Vasilovici, O, Verhaegh, K, Vermare, L, Vianello, N, Viezzer, E, Vijvers, W, Villone, F, Voitsekhovitch, I, Vu, N, Walkden, N, Wauters, T, Weiland, M, Weisen, H, Wensing, M, Wiesenberger, M, Wilkie, G, Wischmeier, M, Wu, K, Yoshida, M, Zagorski, R, Zanca, P, Zebrowski, J, Zisis, A, Zuin, M, Chellai O., Alberti S., Furno I., Goodman T. P., Maj O., Merlo G., Poli E., Ricci P., Riva F., Weber H., Coda S., Agostini M., Albanese R., Alessi E., Allan S., Allcock J., Ambrosino R., Anand H., Andrebe Y., Arnichand H., Auriemma F., Ayllon-Guerola J. M., Bagnato F., Ball J., Baquero-Ruiz M., Beletskii A. A., Bernert M., Bin W., Blanchard P., Blanken T. C., Boedo J. A., Bogar O., Bolzonella T., Bombarda F., Bonanomi N., Bouquey F., Bowman C., Brida D., Bucalossi J., Buermans J., Bufferand H., Buratti P., Calabro G., Calacci L., Camenen Y., Carnevale D., Carpanese F., Carr M., Carraro L., Casolari A., Causa F., Cerovsky J., Chmielewski P., Choi D., Christen N., Ciraolo G., Cordaro L., Costea S., Cruz N., Czarnecka A., Dal Molin A., David P., Decker J., De Oliveira H., Douai D., Dreval M. B., Dudson B., Dunne M., Duval B. P., Eich T., Elmore S., Embreus O., Esposito B., Faitsch M., Farnik M., Fasoli A., Fedorczak N., Felici F., Feng S., Feng X., Ferro G., Fevrier O., Ficker O., Fil A., Fontana M., Frassinetti L., Gahle D. S., Galassi D., Galazka K., Gallo A., Galperti C., Garavaglia S., Garcia J., Garcia-Munoz M., Garrido A. J., Garrido I., Gath J., Geiger B., Giruzzi G., Gobbin M., Gorini G., Gospodarczyk M., Granucci G., Graves J. P., Gruca M., Gyergyek T., Hakola A., Happel T., Harrer G. F., Harrison J., Havlickova E., Hawke J., Henderson S., Hennequin P., Hesslow L., Hogeweij D., Hogge J. -Ph., Hopf C., Hoppe M., Horacek J., Huang Z., Hubbard A., Iantchenko A., Igochine V., Innocente P., Ionita Schrittwieser C., Isliker H., Jacquier R., Jardin A., Kappatou A., Karpushov A., Kazantzidis P. -V., Keeling D., Kirneva N., Komm M., Kong M., Kovacic J., Krawczyk N., Kudlacek O., Kurki-Suonio T., Kwiatkowski R., Labit B., Lazzaro E., Linehan B., Lipschultz B., Llobet X., Lombroni R., Loschiavo V. P., Lunt T., MacUsova E., Madsen J., Maljaars E., Mantica P., Maraschek M., Marchetto C., Marco A., Mariani A., Marini C., Martin Y., Matos F., Maurizio R., Mavkov B., Mazon D., McCarthy P., McDermott R., Menkovski V., Merle A., Meyer H., Micheletti D., Militello F., Mitosinkova K., Mlynar J., Moiseenko V., Molina Cabrera P. A., Morales J., Moret J. -M., Moro A., Mumgaard R. T., Naulin V., Nem R. D., Nespoli F., Nielsen A. H., Nielsen S. K., Nocente M., Nowak S., Offeddu N., Orsitto F. P., Paccagnella R., Palha A., Papp G., Pau A., Pavlichenko R. O., Perek A., Pericoli Ridolfini V., Pesamosca F., Piergotti V., Pigatto L., Piovesan P., Piron C., Plyusnin V., Porte L., Pucella G., Puiatti M. E., Putterich T., Rabinski M., Juul Rasmussen J., Ravensbergen T., Reich M., Reimerdes H., Reimold F., Reux C., Ricci D., Rispoli N., Rosato J., Saarelma S., Salewski M., Salmi A., Sauter O., Scheffer M., Schlatter Ch., Schneider B. S., Schrittwieser R., Sharapov S., Sheeba R. R., Sheikh U., Shousha R., Silva M., Sinha J., Sozzi C., Spolaore M., Stipani L., Strand P., Tala T., Tema Biwole A. S., Teplukhina A. A., Testa D., Theiler C., Thornton A., Tomaz G., Tomes M., Tran M. Q., Tsironis C., Tsui C. K., Urban J., Valisa M., Vallar M., Van Vugt D., Vartanian S., Vasilovici O., Verhaegh K., Vermare L., Vianello N., Viezzer E., Vijvers W. A. J., Villone F., Voitsekhovitch I., Vu N. M. T., Walkden N., Wauters T., Weiland M., Weisen H., Wensing M., Wiesenberger M., Wilkie G., Wischmeier M., Wu K., Yoshida M., Zagorski R., Zanca P., Zebrowski J., Zisis A., and Zuin M.
Abstract: The scattering of millimeter-wave beams from electron density fluctuations and the associated beam broadening are experimentally demonstrated. Using a dedicated setup, instantaneous deflection and (de-)focusing of the beam due to density blobs on the beam path are shown to agree with full-wave simulations. The detected time-averaged wave power transmitted through the turbulent plasma is reproduced by the radiative-transfer model implemented in the WKBeam code, which predicts a ∼50% turbulence-induced broadening of the beam cross-section. The role of core turbulence for the considered geometry is highlighted.
Published: 2021

9. Cherenkov probes and runaway electrons diagnostics

Author: Kwiatkowski, R, Rabinski, M, Sadowski, M, Zebrowski, J, Karpinski, P, Coda, S, Agostini, M, Albanese, R, Alberti, S, Alessi, E, Allan, S, Allcock, J, Ambrosino, R, Anand, H, Andrebe, Y, Arnichand, H, Auriemma, F, Ayllon-Guerola, J, Bagnato, F, Ball, J, Baquero-Ruiz, M, Beletskii, A, Bernert, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bogar, O, Bolzonella, T, Bombarda, F, Bonanomi, N, Bouquey, F, Bowman, C, Brida, D, Bucalossi, J, Buermans, J, Bufferand, H, Buratti, P, Calabro, G, Calacci, L, Camenen, Y, Carnevale, D, Carpanese, F, Carr, M, Carraro, L, Casolari, A, Causa, F, Cerovsky, J, Chellai, O, Chmielewski, P, Choi, D, Christen, N, Ciraolo, G, Cordaro, L, Costea, S, Cruz, N, Czarnecka, A, Molin, A, David, P, Decker, J, De Oliveira, H, Douai, D, Dreval, M, Dudson, B, Dunne, M, Duval, B, Eich, T, Elmore, S, Embreus, O, Esposito, B, Faitsch, M, Farnik, M, Fasoli, A, Fedorczak, N, Felici, F, Feng, S, Feng, X, Ferro, G, Fevrier, O, Ficker, O, Fil, A, Fontana, M, Frassinetti, L, Furno, I, Gahle, D, Galassi, D, Galazka, K, Gallo, A, Galperti, C, Garavaglia, S, Garcia, J, Garcia-Munoz, M, Garrido, A, Garrido, I, Gath, J, Geiger, B, Giruzzi, G, Gobbin, M, Goodman, T, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Gruca, M, Gyergyek, T, Hakola, A, Happel, T, Harrer, G, Harrison, J, Havlickova, E, Hawke, J, Henderson, S, Hennequin, P, Hesslow, L, Hogeweij, D, Hogge, J, Hopf, C, Hoppe, M, Horacek, J, Huang, Z, Hubbard, A, Iantchenko, A, Igochine, V, Innocente, P, Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kappatou, A, Karpushov, A, Kazantzidis, P, Keeling, D, Kirneva, N, Komm, M, Kong, M, Kovacic, J, Krawczyk, N, Kudlacek, O, Kurki-Suonio, T, Labit, B, Lazzaro, E, Linehan, B, Lipschultz, B, Llobet, X, Lombroni, R, Loschiavo, V, Lunt, T, Macusova, E, Madsen, J, Maljaars, E, Mantica, P, Maraschek, M, Marchetto, C, Marco, A, Mariani, A, Marini, C, Martin, Y, Matos, F, Maurizio, R, Mavkov, B, Mazon, D, Mccarthy, P, Mcdermott, R, Menkovski, V, Merle, A, Meyer, H, Micheletti, D, Militello, F, Mitosinkova, K, Mlynar, J, Moiseenko, V, Cabrera, P, Morales, J, Moret, J, Moro, A, Mumgaard, R, Naulin, V, Nem, R, Nespoli, F, Nielsen, A, Nielsen, S, Nocente, M, Nowak, S, Offeddu, N, Orsitto, F, Paccagnella, R, Palha, A, Papp, G, Pau, A, Pavlichenko, R, Perek, A, Pericoli Ridolfini, V, Pesamosca, F, Piergotti, V, Pigatto, L, Piovesan, P, Piron, C, Plyusnin, V, Poli, E, Porte, L, Pucella, G, Puiatti, M, Putterich, T, Rasmussen, J, Ravensbergen, T, Reich, M, Reimerdes, H, Reimold, F, Reux, C, Ricci, D, Ricci, P, Rispoli, N, Rosato, J, Saarelma, S, Salewski, M, Salmi, A, Sauter, O, Scheffer, M, Schlatter, C, Schneider, B, Schrittwieser, R, Sharapov, S, Sheeba, R, Sheikh, U, Shousha, R, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stipani, L, Strand, P, Tala, T, Biwole, A, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tomaz, G, Tomes, M, Tran, M, Tsironis, C, Tsui, C, Urban, J, Valisa, M, Vallar, M, Van Vugt, D, Vartanian, S, Vasilovici, O, Verhaegh, K, Vermare, L, Vianello, N, Viezzer, E, Vijvers, W, Villone, F, Voitsekhovitch, I, Vu, N, Walkden, N, Wauters, T, Weiland, M, Weisen, H, Wensing, M, Wiesenberger, M, Wilkie, G, Wischmeier, M, Wu, K, Yoshida, M, Zagorski, R, Zanca, P, Zisis, A, Zuin, M, Kwiatkowski R., Rabinski M., Sadowski M. J., Zebrowski J., Karpinski P., Coda S., Agostini M., Albanese R., Alberti S., Alessi E., Allan S., Allcock J., Ambrosino R., Anand H., Andrebe Y., Arnichand H., Auriemma F., Ayllon-Guerola J. M., Bagnato F., Ball J., Baquero-Ruiz M., Beletskii A. A., Bernert M., Bin W., Blanchard P., Blanken T. C., Boedo J. A., Bogar O., Bolzonella T., Bombarda F., Bonanomi N., Bouquey F., Bowman C., Brida D., Bucalossi J., Buermans J., Bufferand H., Buratti P., Calabro G., Calacci L., Camenen Y., Carnevale D., Carpanese F., Carr M., Carraro L., Casolari A., Causa F., Cerovsky J., Chellai O., Chmielewski P., Choi D., Christen N., Ciraolo G., Cordaro L., Costea S., Cruz N., Czarnecka A., Molin A. D., David P., Decker J., De Oliveira H., Douai D., Dreval M. B., Dudson B., Dunne M., Duval B. P., Eich T., Elmore S., Embreus O., Esposito B., Faitsch M., Farnik M., Fasoli A., Fedorczak N., Felici F., Feng S., Feng X., Ferro G., Fevrier O., Ficker O., Fil A., Fontana M., Frassinetti L., Furno I., Gahle D. S., Galassi D., Galazka K., Gallo A., Galperti C., Garavaglia S., Garcia J., Garcia-Munoz M., Garrido A. J., Garrido I., Gath J., Geiger B., Giruzzi G., Gobbin M., Goodman T. P., Gorini G., Gospodarczyk M., Granucci G., Graves J. P., Gruca M., Gyergyek T., Hakola A., Happel T., Harrer G. F., Harrison J., Havlickova E., Hawke J., Henderson S., Hennequin P., Hesslow L., Hogeweij D., Hogge J. -P., Hopf C., Hoppe M., Horacek J., Huang Z., Hubbard A., Iantchenko A., Igochine V., Innocente P., Schrittwieser C. I., Isliker H., Jacquier R., Jardin A., Kappatou A., Karpushov A., Kazantzidis P. -V., Keeling D., Kirneva N., Komm M., Kong M., Kovacic J., Krawczyk N., Kudlacek O., Kurki-Suonio T., Labit B., Lazzaro E., Linehan B., Lipschultz B., Llobet X., Lombroni R., Loschiavo V. P., Lunt T., Macusova E., Madsen J., Maljaars E., Mantica P., Maraschek M., Marchetto C., Marco A., Mariani A., Marini C., Martin Y., Matos F., Maurizio R., Mavkov B., Mazon D., McCarthy P., McDermott R., Menkovski V., Merle A., Meyer H., Micheletti D., Militello F., Mitosinkova K., Mlynar J., Moiseenko V., Cabrera P. A. M., Morales J., Moret J. -M., Moro A., Mumgaard R. T., Naulin V., Nem R. D., Nespoli F., Nielsen A. H., Nielsen S. K., Nocente M., Nowak S., Offeddu N., Orsitto F. P., Paccagnella R., Palha A., Papp G., Pau A., Pavlichenko R. O., Perek A., Pericoli Ridolfini V., Pesamosca F., Piergotti V., Pigatto L., Piovesan P., Piron C., Plyusnin V., Poli E., Porte L., Pucella G., Puiatti M. E., Putterich T., Rasmussen J. J., Ravensbergen T., Reich M., Reimerdes H., Reimold F., Reux C., Ricci D., Ricci P., Rispoli N., Rosato J., Saarelma S., Salewski M., Salmi A., Sauter O., Scheffer M., Schlatter C., Schneider B. S., Schrittwieser R., Sharapov S., Sheeba R. R., Sheikh U., Shousha R., Silva M., Sinha J., Sozzi C., Spolaore M., Stipani L., Strand P., Tala T., Biwole A. S. T., Teplukhina A. A., Testa D., Theiler C., Thornton A., Tomaz G., Tomes M., Tran M. Q., Tsironis C., Tsui C. K., Urban J., Valisa M., Vallar M., Van Vugt D., Vartanian S., Vasilovici O., Verhaegh K., Vermare L., Vianello N., Viezzer E., Vijvers W. A. J., Villone F., Voitsekhovitch I., Vu N. M. T., Walkden N., Wauters T., Weiland M., Weisen H., Wensing M., Wiesenberger M., Wilkie G., Wischmeier M., Wu K., Yoshida M., Zagorski R., Zanca P., Zisis A., Zuin M., Kwiatkowski, R, Rabinski, M, Sadowski, M, Zebrowski, J, Karpinski, P, Coda, S, Agostini, M, Albanese, R, Alberti, S, Alessi, E, Allan, S, Allcock, J, Ambrosino, R, Anand, H, Andrebe, Y, Arnichand, H, Auriemma, F, Ayllon-Guerola, J, Bagnato, F, Ball, J, Baquero-Ruiz, M, Beletskii, A, Bernert, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bogar, O, Bolzonella, T, Bombarda, F, Bonanomi, N, Bouquey, F, Bowman, C, Brida, D, Bucalossi, J, Buermans, J, Bufferand, H, Buratti, P, Calabro, G, Calacci, L, Camenen, Y, Carnevale, D, Carpanese, F, Carr, M, Carraro, L, Casolari, A, Causa, F, Cerovsky, J, Chellai, O, Chmielewski, P, Choi, D, Christen, N, Ciraolo, G, Cordaro, L, Costea, S, Cruz, N, Czarnecka, A, Molin, A, David, P, Decker, J, De Oliveira, H, Douai, D, Dreval, M, Dudson, B, Dunne, M, Duval, B, Eich, T, Elmore, S, Embreus, O, Esposito, B, Faitsch, M, Farnik, M, Fasoli, A, Fedorczak, N, Felici, F, Feng, S, Feng, X, Ferro, G, Fevrier, O, Ficker, O, Fil, A, Fontana, M, Frassinetti, L, Furno, I, Gahle, D, Galassi, D, Galazka, K, Gallo, A, Galperti, C, Garavaglia, S, Garcia, J, Garcia-Munoz, M, Garrido, A, Garrido, I, Gath, J, Geiger, B, Giruzzi, G, Gobbin, M, Goodman, T, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Gruca, M, Gyergyek, T, Hakola, A, Happel, T, Harrer, G, Harrison, J, Havlickova, E, Hawke, J, Henderson, S, Hennequin, P, Hesslow, L, Hogeweij, D, Hogge, J, Hopf, C, Hoppe, M, Horacek, J, Huang, Z, Hubbard, A, Iantchenko, A, Igochine, V, Innocente, P, Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kappatou, A, Karpushov, A, Kazantzidis, P, Keeling, D, Kirneva, N, Komm, M, Kong, M, Kovacic, J, Krawczyk, N, Kudlacek, O, Kurki-Suonio, T, Labit, B, Lazzaro, E, Linehan, B, Lipschultz, B, Llobet, X, Lombroni, R, Loschiavo, V, Lunt, T, Macusova, E, Madsen, J, Maljaars, E, Mantica, P, Maraschek, M, Marchetto, C, Marco, A, Mariani, A, Marini, C, Martin, Y, Matos, F, Maurizio, R, Mavkov, B, Mazon, D, Mccarthy, P, Mcdermott, R, Menkovski, V, Merle, A, Meyer, H, Micheletti, D, Militello, F, Mitosinkova, K, Mlynar, J, Moiseenko, V, Cabrera, P, Morales, J, Moret, J, Moro, A, Mumgaard, R, Naulin, V, Nem, R, Nespoli, F, Nielsen, A, Nielsen, S, Nocente, M, Nowak, S, Offeddu, N, Orsitto, F, Paccagnella, R, Palha, A, Papp, G, Pau, A, Pavlichenko, R, Perek, A, Pericoli Ridolfini, V, Pesamosca, F, Piergotti, V, Pigatto, L, Piovesan, P, Piron, C, Plyusnin, V, Poli, E, Porte, L, Pucella, G, Puiatti, M, Putterich, T, Rasmussen, J, Ravensbergen, T, Reich, M, Reimerdes, H, Reimold, F, Reux, C, Ricci, D, Ricci, P, Rispoli, N, Rosato, J, Saarelma, S, Salewski, M, Salmi, A, Sauter, O, Scheffer, M, Schlatter, C, Schneider, B, Schrittwieser, R, Sharapov, S, Sheeba, R, Sheikh, U, Shousha, R, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stipani, L, Strand, P, Tala, T, Biwole, A, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tomaz, G, Tomes, M, Tran, M, Tsironis, C, Tsui, C, Urban, J, Valisa, M, Vallar, M, Van Vugt, D, Vartanian, S, Vasilovici, O, Verhaegh, K, Vermare, L, Vianello, N, Viezzer, E, Vijvers, W, Villone, F, Voitsekhovitch, I, Vu, N, Walkden, N, Wauters, T, Weiland, M, Weisen, H, Wensing, M, Wiesenberger, M, Wilkie, G, Wischmeier, M, Wu, K, Yoshida, M, Zagorski, R, Zanca, P, Zisis, A, Zuin, M, Kwiatkowski R., Rabinski M., Sadowski M. J., Zebrowski J., Karpinski P., Coda S., Agostini M., Albanese R., Alberti S., Alessi E., Allan S., Allcock J., Ambrosino R., Anand H., Andrebe Y., Arnichand H., Auriemma F., Ayllon-Guerola J. M., Bagnato F., Ball J., Baquero-Ruiz M., Beletskii A. A., Bernert M., Bin W., Blanchard P., Blanken T. C., Boedo J. A., Bogar O., Bolzonella T., Bombarda F., Bonanomi N., Bouquey F., Bowman C., Brida D., Bucalossi J., Buermans J., Bufferand H., Buratti P., Calabro G., Calacci L., Camenen Y., Carnevale D., Carpanese F., Carr M., Carraro L., Casolari A., Causa F., Cerovsky J., Chellai O., Chmielewski P., Choi D., Christen N., Ciraolo G., Cordaro L., Costea S., Cruz N., Czarnecka A., Molin A. D., David P., Decker J., De Oliveira H., Douai D., Dreval M. B., Dudson B., Dunne M., Duval B. P., Eich T., Elmore S., Embreus O., Esposito B., Faitsch M., Farnik M., Fasoli A., Fedorczak N., Felici F., Feng S., Feng X., Ferro G., Fevrier O., Ficker O., Fil A., Fontana M., Frassinetti L., Furno I., Gahle D. S., Galassi D., Galazka K., Gallo A., Galperti C., Garavaglia S., Garcia J., Garcia-Munoz M., Garrido A. J., Garrido I., Gath J., Geiger B., Giruzzi G., Gobbin M., Goodman T. P., Gorini G., Gospodarczyk M., Granucci G., Graves J. P., Gruca M., Gyergyek T., Hakola A., Happel T., Harrer G. F., Harrison J., Havlickova E., Hawke J., Henderson S., Hennequin P., Hesslow L., Hogeweij D., Hogge J. -P., Hopf C., Hoppe M., Horacek J., Huang Z., Hubbard A., Iantchenko A., Igochine V., Innocente P., Schrittwieser C. I., Isliker H., Jacquier R., Jardin A., Kappatou A., Karpushov A., Kazantzidis P. -V., Keeling D., Kirneva N., Komm M., Kong M., Kovacic J., Krawczyk N., Kudlacek O., Kurki-Suonio T., Labit B., Lazzaro E., Linehan B., Lipschultz B., Llobet X., Lombroni R., Loschiavo V. P., Lunt T., Macusova E., Madsen J., Maljaars E., Mantica P., Maraschek M., Marchetto C., Marco A., Mariani A., Marini C., Martin Y., Matos F., Maurizio R., Mavkov B., Mazon D., McCarthy P., McDermott R., Menkovski V., Merle A., Meyer H., Micheletti D., Militello F., Mitosinkova K., Mlynar J., Moiseenko V., Cabrera P. A. M., Morales J., Moret J. -M., Moro A., Mumgaard R. T., Naulin V., Nem R. D., Nespoli F., Nielsen A. H., Nielsen S. K., Nocente M., Nowak S., Offeddu N., Orsitto F. P., Paccagnella R., Palha A., Papp G., Pau A., Pavlichenko R. O., Perek A., Pericoli Ridolfini V., Pesamosca F., Piergotti V., Pigatto L., Piovesan P., Piron C., Plyusnin V., Poli E., Porte L., Pucella G., Puiatti M. E., Putterich T., Rasmussen J. J., Ravensbergen T., Reich M., Reimerdes H., Reimold F., Reux C., Ricci D., Ricci P., Rispoli N., Rosato J., Saarelma S., Salewski M., Salmi A., Sauter O., Scheffer M., Schlatter C., Schneider B. S., Schrittwieser R., Sharapov S., Sheeba R. R., Sheikh U., Shousha R., Silva M., Sinha J., Sozzi C., Spolaore M., Stipani L., Strand P., Tala T., Biwole A. S. T., Teplukhina A. A., Testa D., Theiler C., Thornton A., Tomaz G., Tomes M., Tran M. Q., Tsironis C., Tsui C. K., Urban J., Valisa M., Vallar M., Van Vugt D., Vartanian S., Vasilovici O., Verhaegh K., Vermare L., Vianello N., Viezzer E., Vijvers W. A. J., Villone F., Voitsekhovitch I., Vu N. M. T., Walkden N., Wauters T., Weiland M., Weisen H., Wensing M., Wiesenberger M., Wilkie G., Wischmeier M., Wu K., Yoshida M., Zagorski R., Zanca P., Zisis A., and Zuin M.
Abstract: The beams of fast runaway electrons (RE), which are often produced during tokamak discharges, are particularly dangerous and can induce serious damages of the vacuum vessel and internal components of the machine. The proper and fast diagnostics of RE beams is essential for controlling the discharge, e.g., by early mitigation of disruptions and potentially dangerous RE beams. The diagnostics of RE beams is usually based on measurements of the radiation emitted either by these electrons, or as a result of their interactions with plasma and/or vessel walls. Such a radiation is usually recorded by the means of probes placed outside the vacuum vessel. The method developed by our team is based on the probe located inside the vacuum vessel. The probe can be used to detect highly localized RE bunches and to determine their spatial and temporal characteristics. During last few years, the NCBJ team have developed and used the RE diagnostics based on the Cherenkov effect observed in diamond radiators coupled with fast photomultipliers. During the investigated discharges, the probe was inserted into the vacuum vessel, and its head was placed at the plasma edge, where fast RE are expected. A correlation between signals recorded using our probes and other diagnostics, e.g., hard x-ray signals, was also studied. In this paper, we present recent results of the RE measurements by means of Cherenkov probes, which were performed in the COMPASS and TCV tokamaks.
Published: 2021

10. Basic design considerations for a frequency-tunable ECRH&CD system to suppress NTMs in DEMO

Author: Wu C., Avramidis K., Bruschi A., Fable E., Franke T., Gantenbein G., Garavaglia S., Granucci G., Illy S., Janky F., Jelonnek J., Kudlacek O., Moro A., Poli P., Schramm R., Siccinio M., Snicker A., Suárez López G., Tardini G., Thumm M., Tran M-Q.), and Zohm H.
Subjects: Technology, ECRH&CD system, DEMO, ddc:600
Abstract: To take full advantage of the electron cyclotron resonance heating and current drive (ECRH&CD) system, flexible variation of the resonant (absorption) location is required. Electron cyclotron (EC) waves are used, among other tasks, to drive non-inductive plasma current in the O-point of magnetic islands for neo-classical tearing mode (NTM) stabilization. Typically, the location of absorption is varied by tuning the launching angle of the EC wave beam with movable plasma facing mirrors. Another possibility to achieve the variation of the absorption position is to tune the frequency of the EC waves, while keeping the wave launching angle constant. Gyrotrons are the high-power microwave sources of any EC system. The oscillation frequency of a frequency-tunable gyrotron is changed in steps over a wide frequency range by changing the operating mode. The minimum frequency step between two neighboring modes and the number of steps define the bandwidth, while the tuning speed of the gyrotron super-conducting magnet is limited. These are the additional parameters to be considered in a frequency-steering EC system. A feasibility study of using frequency-tunable EC wave beams for the NTM suppression in the current EU-DEMO baseline is performed with the transport code ASTRA and the beam tracing code TORBEAM. The basic system parameters and design considerations, in particular, the required frequency bandwidth of the whole EC wave system, the minimum switching speed between two adjacent frequency steps and the needed power of EC waves in absence of turbulence effects, will be discussed in concrete scenarios.
Published: 2020

11. Megawatt power generation of the dual-frequency gyrotron for TCV at 84 and 126 GHz, in long pulses

Author: Hogge, J.-P., primary, Alberti, S., additional, Avramidis, K. A., additional, Bruschi, A., additional, Bin, W., additional, Cau, F., additional, Cismondi, F., additional, Dubray, J., additional, Fasel, D., additional, Gantenbein, G., additional, Garavaglia, S., additional, Genoud, J., additional, Goodman, T. P., additional, Illy, S., additional, Jin, J., additional, Legrand, F., additional, Marchesin, R., additional, Marlétaz, B., additional, Masur, J., additional, Moro, A., additional, Moura, C., additional, Pagonakis, I. Gr., additional, Périal, E., additional, Savoldi, L., additional, Scherer, T., additional, Siravo, U., additional, Thumm, M., additional, Toussaint, M., additional, and Tran, M.-Q., additional
Published: 2020
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12. Didymos Reconnaissance and Asteroid Camera for OpNav (DRACO): design, fabrication, test, and operation

Author: Coyle, Laura E., Matsuura, Shuji, Perrin, Marshall D., Fletcher, Z. J., Ryan, K. J., Ernst, C. M., Maas, B., Dickman, J., Greenberg, J., Nelson, T., Lewis, D., Mize, J., Cheng, A., Bekker, D., Rodriguez, L., Daly, R. T., Smith, R., and Tran, M. Q.
Published: 2022
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13. Real-time plasma state monitoring and supervisory control on TCV

Author: Blanken, T. C., Felici, F., Galperti, C., Kong, M., Sauter, O., Baar, M. R. de, Vu, N. M. T., Meyer, H., Eich, T., Beurskens, M., Coda, S., Hakola, A., Martin, P., Adamek, J., Agostini, M., Aguiam, D., Ahn, J., Aho-Mantila, L., Akers, R., Albanese, R., Aledda, R., Alessi, E., Allan, S., Alves, D., Ambrosino, R., Amicucci, L., Anand, H., Anastassiou, G., Andrebe, Y., Angioni, C., Apruzzese, G., Ariola, M., Arnichand, H., Arter, W., Baciero, A., Barnes, M., Barrera, L., Behn, R., Bencze, A., Bernardo, J., Bernert, M., Bettini, P., Bilkova, P., Bin, W., Birkenmeier, G., Bizarro, J. P. S., Blanchard, P., Blanken, T., Bluteau, M., Bobkov, V., Bogar, O., Bohm, P., Bolzonella, T., Boncagni, L., Botrugno, A., Bottereau, C., Bouquey, F., Bourdelle, C., Bremond, S., Brezinsek, S., Brida, D., Brochard, F., Buchanan, J., Bufferand, H., Buratti, P., Cahyna, P., Calabro, G., Camenen, Y., Caniello, R., Cannas, B., Canton, A., Cardinali, A., Carnevale, D., Carr, M., Carralero, D., Carvalho, P., Casali, L., Castaldo, C., Castejon, F., Castro, R., Causa, F., Cavazzana, R., Cavedon, M., Cecconello, M., Ceccuzzi, S., Cesario, R., Challis, C. D., Chapman, I. T., Chapman, S., Chernyshova, M., Choi, D., Cianfarani, C., Ciraolo, G., Citrin, G., Clairet, F., Classen, I., Coelho, R., Coenen, J. W., Colas, L., Conway, Y., Corre, Y., Costea, S., Crisanti, F., Cruz, N., Cseh, G., Czarnecka, A., D’Arcangelo, O., De Angeli, M., De Masi, G., Temmerman, De, De Tommasi, G., Decker, J., Delogu, R. S., Dendy, R., Denner, P., Di Troia, C., Dimitrova, M., D’Inca, R., Douai, D., Drenik, A., Dudson, B., Dunai, D., Dunne, M., Duval, B. P., Easy, L., Elmore, S., Erdos, B., Esposito, B., Fable, E., Faitsch, M., Fanni, A., Fedorczak, N., Ferreira, J., Fevrier, O., Ficker, O., Fietz, S., Figini, L., Figueiredo, A., Fil, A., Fishpool, G., Fitzgerald, M., Fontana, M., Ford, O., Frassinetti, L., Fridstrom, R., Frigione, D., Fuchert, G., Fuchs, C., Palumbo, M. Furno, Futatani, S., Gabellieri, L., Galdon-Quiroga, J., Galeani, S., Gallart, D., Gallo, A., Gao, Y., Garavaglia, S., Garcia, J., Garcia-Carrasco, A., Garcia-Lopez, J., Garcia-Munoz, M., Gardarein, J.-L., Garzotti, L., Gaspar, J., Gauthier, E., Geelen, P., Geiger, B., Ghendrih, P., Ghezzi, F., Giacomelli, L., Giannone, L., Giovannozzi, E., Giroud, C., Gonzalez, C. Gleason, Gobbin, M., Goodman, T. P., Gorini, G., Gospodarczyk, M., Granucci, G., Gruber, M., Gude, A., Guimarais, L., Guirlet, R., Gunn, J., Hacek, P., Hacquin, S., Hall, S., Ham, C., Happel, T., Harrison, J., Harting, D., Hauer, V., Havlickova, E., Hellsten, T., Helou, W., Henderson, S., Hennequin, P., Heyn, M., Hnat, B., Hoelzl, M., Doric, V., Galazka, K., Hogeweij, D., Honore, C., Hopf, C., Horacek, J., Hornung, G., Horvath, L., Huang, Z., Huber, A., Igitkhanov, J., Igochine, V., Imrisek, M., Innocente, P., Ionita-Schrittwieser, C., Isliker, H., Ivanova-Stanik, I., Jacobsen, A. S., Jacquet, P., Jakubowski, M., Jardin, A., Jaulmes, F., Jenko, F., Jensen, T., Busk, O. Jeppe Miki, Jessen, M., Joffrin, E., Jones, O., Jonsson, T., Kallenbach, A., Kallinikos, N., Kalvin, S., Kappatou, A., Karhunen, J., Karpushov, A., Kasilov, S., Kasprowicz, G., Kendl, A., Kernbichler, W., Kim, D., Kirk, A., Kjer, S., Klimek, I., Kocsis, G., Kogut, D., Komm, M., Korsholm, S. B., Koslowski, H. R., Koubiti, M., Kovacic, J., Kovarik, K., Krawczyk, N., Krbec, J., Krieger, K., Krivska, A., Kube, R., Kudlacek, O., Kurki-Suonio, T., Labit, B., Laggner, F. M., Laguardia, L., Lahtinen, A., Lalousis, P., Lang, P., Lauber, P., Lazanyi, N., Lazaros, A., Le, H. B., Lebschy, A., Leddy, J., Lefevre, L., Lehnen, M., Leipold, F., Lessig, A., Leyland, M., Li, L., Liang, Y., Lipschultz, B., Liu, Y. Q., Loarer, T., Loarte, A., Loewenhoff, T., Lomanowski, B., Loschiavo, V. P., Lunt, T., Lupelli, I., Lux, H., Lyssoivan, A., Madsen, J., Maget, P., Maggi, C., Maggiora, R., Magnussen, M. L., Mailloux, J., Maljaars, B., Malygin, A., Mantica, P., Mantsinen, M., Maraschek, M., Marchand, B., Marconato, N., Marini, C., Marinucci, M., Markovic, T., Marocco, D., Marrelli, L., Martin, Y., Martin Solis, J. R., Martitsch, A., Mastrostefano, S., Mattei, M., Matthews, G., Mavridis, M., Mayoral, M.-L., Mazon, D., McCarthy, P., McAdams, R., McArdle, G., McClements, K., McDermott, R., McMillan, B., Meisl, G., Merle, A., Meyer, O., Milanesio, D., Militello, F., Miron, I. G., Mitosinkova, K., Mlynar, J., Mlynek, A., Molina, D., Molina, P., Monakhov, I., Morales, J., Moreau, D., Morel, P., Moret, J.-M., Moro, A., Moulton, D., Mueller, H. W., Nabais, F., Nardon, E., Naulin, V., Nemes-Czopf, A., Nespoli, F., Neu, R., Nielsen, A. H., Nielsen, S. K., Nikolaeva, V., Nimb, S., Nocente, M., Nouailletas, R., Nowak, S., Oberkofler, M., Oberparleiter, M., Ochoukov, R., Odstrcil, T., Olsen, J., Omotani, J., O’Mullane, M. G., Orain, F., Osterman, N., Paccagnella, R., Pamela, S., Pangione, L., Panjan, M., Papp, G., Paprok, R., Parail, V., Parra, F., I, Pau, A., Pautasso, G., Pehkonen, S.-P., Pereira, A., Cippo, E. Perelli, Ridolfini, V. Pericoli, Peterka, M., Petersson, P., Petrzilka, V., Piovesan, P., Piron, C., Pironti, A., Pisano, F., Pisokas, T., Pitts, R., Ploumistakis, I., Plyusnin, V., Pokol, G., Poljak, D., Poloskei, P., Popovic, Z., Por, G., Porte, L., Potzel, S., Predebon, I., Preynas, M., Primc, G., Pucella, G., Puiatti, M. E., Puetterich, T., Rack, M., Ramogida, G., Rapson, C., Rasmussen, J. Juul, Rasmussen, J., Ratta, G. A., Ratynskaia, S., Ravera, G., Refy, D., Reich, M., Reimerdes, H., Reimold, F., Reinke, M., Reiser, D., Resnik, M., Reux, C., Ripamonti, D., Rittich, D., Riva, G., Rodriguez-Ramos, M., Rohde, V., Rosato, J., Ryter, F., Saarelma, S., Sabot, R., Saint-Laurent, F., Salewski, M., Salmi, A., Samaddar, D., Sanchis-Sanchez, L., Santos, J., Scannell, R., Scheffer, M., Schneider, M., Schneider, B., Schneider, P., Schneller, M., Schrittwieser, R., Schubert, M., Schweinzer, J., Seidl, J., Sertoli, M., Sesnic, S., Shabbir, A., Shalpegin, A., Shanahan, B., Sharapov, S., Sheikh, U., Sias, G., Sieglin, B., Silva, C., Silva, A., Fuglister, M. Silva, Simpson, J., Snicker, A., Sommariva, C., Sozzi, C., Spagnolo, S., Spizzo, G., Spolaore, M., Stange, T., Pedersen, M. Stejner, Stepanov, I., Stober, J., Strand, P., Susnjara, A., Suttrop, W., Szepesi, T., Tal, B., Tala, T., Tamain, P., Tardini, G., Tardocchi, M., Teplukhina, A., Terranova, D., Testa, D., Theiler, C., Thornton, A., Tolias, P., Tophoj, L., Treutterer, W., Trevisan, G. L., Tripsky, M., Tsironis, C., Tsui, C., Tudisco, O., Uccello, A., Urban, J., Valisa, M., Vallejos, P., Valovic, M., Van den Brand, H., Vanovac, B., Varoutis, S., Vartanian, S., Vega, J., Verdoolaege, G., Verhaegh, K., Vermare, L., Vianello, N., Vicente, J., Viezzer, E., Vignitchouk, L., Vijvers, W. A. J., Villone, F., Viola, B., Vlahos, L., Voitsekhovitch, I., Vondracek, P., Wagner, D., Walkden, N., Wang, N., Wauters, T., Weiland, M., Weinzettl, V., Westerhof, E., Wiesenberger, M., Willensdorfer, M., Wischmeier, M., Wodniak, I., Wolfrum, E., Yadykin, D., Zagorski, R., Zammuto, I., Zanca, P., Zaplotnik, R., Zestanakis, P., Zhang, W., Zoletnik, S., Zuin, M., Alberti, S., Boedo, J. A., Braunmueller, F. H., Carpanese, F., Chellai, O., Citrin, J., Fasoli, A., Furno, I., Garrido, I., Graves, J. P., Hawke, J., Hogge, J.-Ph, Schrittwieser, C. Ionita, Jacquier, R., Kamleitner, J., Keeling, D. L., Kirneva, N., Kraemer-Flecken, A., Lazzaro, E., Llobet, X., Maljaars, E., Maurizio, R., Cabrera, P. A. Molina, Ricci, P., Riva, F., Robinson, T., Schlatter, Ch, Sciortino, F., Silva, M., Sinha, J., Stoltzfus-Dueck, T., Tran, M. Q., Weisen, H., Dori, V., Team, EUROfusion MST1, Team, TCV, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla. RNM138: Física Nuclear Aplicada, Control Systems Technology, and Department of Physics
Subjects: ACTUATOR, Nuclear and High Energy Physics, Schedule, TOKAMAKS, Atmospheric-pressure plasma, 01 natural sciences, 114 Physical sciences, 010305 fluids & plasmas, PHYSICS, Fusion, plasma och rymdfysik, Supervisory control, DESIGN, Control theory, Real-time Control System, CONTROL-SYSTEM, 0103 physical sciences, ddc:530, Digital control, Control of tokamak plasmas, Real-time control, 010306 general physics, Finite-state machine, Physics, supervisory control, Control engineering, control of tokamak plasmas, Condensed Matter Physics, Fusion, Plasma and Space Physics, Control system, real-time control, REQUIREMENTS
Abstract: In ITER and DEMO, various control objectives related to plasma control must be simultaneously achieved by the plasma control system (PCS), in both normal operation as well as off-normal conditions. The PCS must act on off-normal events and deviations from the target scenario, since certain sequences (chains) of events can precede disruptions. It is important that these decisions are made while maintaining a coherent prioritization between the real-time control tasks to ensure high-performance operation. In this paper, a generic architecture for task-based integrated plasma control is proposed. The architecture is characterized by the separation of state estimation, event detection, decisions and task execution among different algorithms, with standardized signal interfaces. Central to the architecture are a plasma state monitor and supervisory controller. In the plasma state monitor, discrete events in the continuous-valued plasma state are modeled using finite state machines. This provides a high-level representation of the plasma state. The supervisory controller coordinates the execution of multiple plasma control tasks by assigning task priorities, based on the finite states of the plasma and the pulse schedule. These algorithms were implemented on the TCV digital control system and integrated with actuator resource management and existing state estimation algorithms and controllers. The plasma state monitor on TCV can track a multitude of plasma events, related to plasma current, rotating and locked neoclassical tearing modes, and position displacements. In TCV experiments on simultaneous control of plasma pressure, safety factor profile and NTMs using electron cyclotron heating (ECH) and current drive (ECCD), the supervisory controller assigns priorities to the relevant control tasks. The tasks are then executed by feedback controllers and actuator allocation management. This work forms a significant step forward in the ongoing integration of control capabilities in experiments on TCV, in support of tokamak reactor operation. EURATOM 633053 Netherlands Organization for Scientific Research 680.47.436
Published: 2019

14. Recent results from the TCV tokamak

Author: Weisen, H., Hofmann, F., Dutch, M. J., Moret, J. -M., Lister, J. B., Pochelon, A., Pitts, R. A., Anton, M., Behn, R., Bernel, S., Bühlmann, F., Chavan, R., Duval, B. P., Fasel, D., Favre, A., Franke, S., Heym, A., Hollenstein, Ch., Isoz, P., Joye, B., Llobet, X., Marletaz, B., Marmillod, Ph., Martin, Y., Nieswand, Ch., Paris, P. J., Perez, A., Pietrzyk, Z. A., Sauter, O., Van Toledo, W., Tonetti, G., Tran, M. Q., Troyon, F., and Ward, D. J.
Published: 1995
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15. Feasibility study of the eu home team on a 170GHz 1MW CW gyrotron for ECH on ITER

Author: Iatrou, C. T., Whaley, D. R., Kern, S., Thumm, M., Tran, M. Q., Möbius, A., Nickel, H. -U., Norajitra, P., Wien, A., Tran, T. M., Bon Mardion, G., Pain, M., and Tonon, G.
Published: 1995
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16. Measurement of γp→K + Λ and γp→K + Σ 0 at photon energies up to 1.47 GeV

Author: Bockhorst, M., Burbach, G., Burgwinkel, R., Empt, J., Guse, B., Guse, B., Haas, K. -M., Hannappel, J., Heinloth, K., Hey, T., Hoffmann-Rothe, P., Honscheid, K., Jahnen, T., Jakob, H. P., Jöpen, N., Jüngst, H., Kirch, U., Klein, F. -J., Kostrewa, D., Lindemann, L., Link, J., Manns, J., Menze, D., Merkel, H., Merkel, R., Neuerburg, W., Paul, E., Plötzke, R., Schenk, U., Schmidt, S., Scholmann, J., Schütz, P., Schultz-Coulon, H. -C., Schweitzer, M., Schwille, W. J., Tran, M. -Q., Umlauf, G., Vogl, W., Wedemeyer, R., Wehnes, F., Wißkirchen, J., and Wolf, A.
Published: 1994
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17. Measurement of the electric field pattern of a Fabry-Perot resonator used in quasi-optical gyrotrons

Author: Roulin, M., Tran, M. Q., and Hogge, J. Ph.
Published: 1993
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18. High-power gyrotrons for electron cyclotron heating and current drive

Author: Thumm, M. K. A., Denisov, G. G., Sakamoto, K., Tran, M. Q., Thumm, M. K. A., Denisov, G. G., Sakamoto, K., and Tran, M. Q.
Abstract: In many tokamak and stellarator experiments around the globe that arc investigating energy production via controlled thermonuclear fusion, electron cyclotron heating and current drive (ECH&CD) are used for plasma start-up, heating, non-inductive current drive and magnetohydrodynamic stability control. ECH will be the first auxiliary heating method used on ITER. Megawatt-class, continuous wave gyrotrons arc employed as high-power millimeter (mm)-wave sources. The present review reports on the worldwide state-of-the-art of high-power gyrotrons. Their successful development during recent years changed ECH from a minor to a major heating method. After a general introduction of the various functions of ECH&CD in fusion physics, especially for ITER, section 2 will explain the fast-wave gyrotron interaction principle. Section 3 discusses innovations on the components of modern long-pulse fusion gyrotrons (magnetron injection electron gun, beam tunnel, cavity, quasi-optical output coupler, synthetic diamond output window, single-stage depressed collector) and auxiliary components (superconducting magnets, gyrotron diagnostics, high-power calorimetric dummy loads). Section 4 deals with present megawatt-class gyrotrons for ITER, W7-X, LHD, EAST, KSTAR and JT-60SA, and also includes tubes for moderate pulse length machines such as ASDEX-U, DIII-D, HL-2A, TCV, QUEST and GAMMA-10. In section 5 the development of future advanced fusion gyrotrons is discussed. These arc tubes with higher frequencies for DEMO, multi-frequency (multi-purpose) gyrotrons, stepwise frequency tunable tubes for plasma stabilization, injection-locked and coaxial-cavity multi-megawatt gyrotrons, as well as sub-THz gyrotrons for collective Thomson scattering. Efficiency enhancement via multi-stage depressed collectors, fast oscillation recovery methods and reliability, availability, maintainability and inspectability will be discussed at the end of this section.
Published: 2019
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19. Physics research on the TCV tokamak facility: From conventional to alternative scenarios and beyond

Author: Coda, S, Agostini, M, Albanese, R, Alberti, S, Alessi, E, Allan, S, Allcock, J, Ambrosino, R, Anand, H, Andrebe, Y, Arnichand, H, Auriemma, F, Ayllon-Guerola, J, Bagnato, F, Ball, J, Baquero-Ruiz, M, Beletskii, A, Bernert, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bogar, O, Bolzonella, T, Bombarda, F, Bonanomi, N, Bouquey, F, Bowman, C, Brida, D, Bucalossi, J, Buermans, J, Bufferand, H, Buratti, P, Calabro, G, Calacci, L, Camenen, Y, Carnevale, D, Carpanese, F, Carr, M, Carraro, L, Casolari, A, Causa, F, Cerovsky, J, Chellai, O, Chmielewski, P, Choi, D, Christen, N, Ciraolo, G, Cordaro, L, Costea, S, Cruz, N, Czarnecka, A, Dal Molin, A, David, P, Decker, J, De Oliveira, H, Douai, D, Dreval, M, Dudson, B, Dunne, M, Duval, B, Eich, T, Elmore, S, Embreus, O, Esposito, B, Faitsch, M, Farnik, M, Fasoli, A, Fedorczak, N, Felici, F, Feng, S, Feng, X, Ferro, G, Fevrier, O, Ficker, O, Fil, A, Fontana, M, Frassinetti, L, Furno, I, Gahle, D, Galassi, D, Galazka, K, Gallo, A, Galperti, C, Garavaglia, S, Garcia, J, Garcia-Munoz, M, Garrido, A, Garrido, I, Gath, J, Geiger, B, Giruzzi, G, Gobbin, M, Goodman, T, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Gruca, M, Gyergyek, T, Hakola, A, Happel, T, Harrer, G, Harrison, J, Havlickova, E, Hawke, J, Henderson, S, Hennequin, P, Hesslow, L, Hogeweij, D, Hogge, J, Hopf, C, Hoppe, M, Horacek, J, Huang, Z, Hubbard, A, Iantchenko, A, Igochine, V, Innocente, P, Ionita Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kappatou, A, Karpushov, A, Kazantzidis, P, Keeling, D, Kirneva, N, Komm, M, Kong, M, Kovacic, J, Krawczyk, N, Kudlacek, O, Kurki-Suonio, T, Kwiatkowski, R, Labit, B, Lazzaro, E, Linehan, B, Lipschultz, B, Llobet, X, Lombroni, R, Loschiavo, V, Lunt, T, Macusova, E, Madsen, J, Maljaars, E, Mantica, P, Maraschek, M, Marchetto, C, Marco, A, Mariani, A, Marini, C, Martin, Y, Matos, F, Frisina, M, Mavkov, B, Mazon, D, Mccarthy, P, Mcdermott, R, Menkovski, V, Merle, A, Meyer, H, Micheletti, D, Militello, F, Mitosinkova, K, Mlynar, J, Moiseenko, V, Molina Cabrera, P, Morales, J, Moret, J, Moro, A, Mumgaard, R, Naulin, V, Nem, R, Nespoli, F, Nielsen, A, Nielsen, S, Nocente, M, Nowak, S, Offeddu, N, Orsitto, F, Paccagnella, R, Palha, A, Papp, G, Pau, A, Pavlichenko, R, Perek, A, Pericoli Ridolfini, V, Pesamosca, F, Piergotti, V, Pigatto, L, Piovesan, P, Piron, C, Plyusnin, V, Poli, E, Porte, L, Pucella, G, Puiatti, M, Putterich, T, Rabinski, M, Juul Rasmussen, J, Ravensbergen, T, Reich, M, Reimerdes, H, Reimold, F, Reux, C, Ricci, D, Ricci, P, Rispoli, N, Rosato, J, Saarelma, S, Salewski, M, Salmi, A, Sauter, O, Scheffer, M, Schlatter, C, Schneider, B, Schrittwieser, R, Sharapov, S, Sheeba, R, Sheikh, U, Shousha, R, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stipani, L, Strand, P, Tala, T, Tema Biwole, A, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tomaz, G, Tomes, M, Tran, M, Tsironis, C, Tsui, C, Urban, J, Valisa, M, Vallar, M, Van Vugt, D, Vartanian, S, Vasilovici, O, Verhaegh, K, Vermare, L, Vianello, N, Viezzer, E, Vijvers, W, Villone, F, Voitsekhovitch, I, Vu, N, Walkden, N, Wauters, T, Weiland, M, Weisen, H, Wensing, M, Wiesenberger, M, Wilkie, G, Wischmeier, M, Wu, K, Yoshida, M, Zagorski, R, Zanca, P, Zebrowski, J, Zisis, A, Zuin, M, Coda S., Agostini M., Albanese R., Alberti S., Alessi E., Allan S., Allcock J., Ambrosino R., Anand H., Andrebe Y., Arnichand H., Auriemma F., Ayllon-Guerola J. M., Bagnato F., Ball J., Baquero-Ruiz M., Beletskii A. A., Bernert M., Bin W., Blanchard P., Blanken T. C., Boedo J. A., Bogar O., Bolzonella T., Bombarda F., Bonanomi N., Bouquey F., Bowman C., Brida D., Bucalossi J., Buermans J., Bufferand H., Buratti P., Calabro G., Calacci L., Camenen Y., Carnevale D., Carpanese F., Carr M., Carraro L., Casolari A., Causa F., Cerovsky J., Chellai O., Chmielewski P., Choi D., Christen N., Ciraolo G., Cordaro L., Costea S., Cruz N., Czarnecka A., Dal Molin A., David P., Decker J., De Oliveira H., Douai D., Dreval M. B., Dudson B., Dunne M., Duval B. P., Eich T., Elmore S., Embreus O., Esposito B., Faitsch M., Farnik M., Fasoli A., Fedorczak N., Felici F., Feng S., Feng X., Ferro G., Fevrier O., Ficker O., Fil A., Fontana M., Frassinetti L., Furno I., Gahle D. S., Galassi D., Galazka K., Gallo A., Galperti C., Garavaglia S., Garcia J., Garcia-Munoz M., Garrido A. J., Garrido I., Gath J., Geiger B., Giruzzi G., Gobbin M., Goodman T. P., Gorini G., Gospodarczyk M., Granucci G., Graves J. P., Gruca M., Gyergyek T., Hakola A., Happel T., Harrer G. F., Harrison J., Havlickova E., Hawke J., Henderson S., Hennequin P., Hesslow L., Hogeweij D., Hogge J. -P., Hopf C., Hoppe M., Horacek J., Huang Z., Hubbard A., Iantchenko A., Igochine V., Innocente P., Ionita Schrittwieser C., Isliker H., Jacquier R., Jardin A., Kappatou A., Karpushov A., Kazantzidis P. -V., Keeling D., Kirneva N., Komm M., Kong M., Kovacic J., Krawczyk N., Kudlacek O., Kurki-Suonio T., Kwiatkowski R., Labit B., Lazzaro E., Linehan B., Lipschultz B., Llobet X., Lombroni R., Loschiavo V. P., Lunt T., Macusova E., Madsen J., Maljaars E., Mantica P., Maraschek M., Marchetto C., Marco A., Mariani A., Marini C., Martin Y., Matos F., FRISINA, MAURIZIO REMO DOMENICO, Mavkov B., Mazon D., McCarthy P., McDermott R., Menkovski V., Merle A., Meyer H., Micheletti D., Militello F., Mitosinkova K., Mlynar J., Moiseenko V., Molina Cabrera P. A., Morales J., Moret J. -M., Moro A., Mumgaard R. T., Naulin V., Nem R. D., Nespoli F., Nielsen A. H., Nielsen S. K., Nocente M., Nowak S., Offeddu N., Orsitto F. P., Paccagnella R., Palha A., Papp G., Pau A., Pavlichenko R. O., Perek A., Pericoli Ridolfini V., Pesamosca F., Piergotti V., Pigatto L., Piovesan P., Piron C., Plyusnin V., Poli E., Porte L., Pucella G., Puiatti M. E., Putterich T., Rabinski M., Juul Rasmussen J., Ravensbergen T., Reich M., Reimerdes H., Reimold F., Reux C., Ricci D., Ricci P., Rispoli N., Rosato J., Saarelma S., Salewski M., Salmi A., Sauter O., Scheffer M., Schlatter C., Schneider B. S., Schrittwieser R., Sharapov S., Sheeba R. R., Sheikh U., Shousha R., SILVA, MARTA, Sinha J., Sozzi C., Spolaore M., Stipani L., Strand P., Tala T., Tema Biwole A. S., Teplukhina A. A., Testa D., Theiler C., Thornton A., Tomaz G., Tomes M., Tran M. Q., Tsironis C., Tsui C. K., Urban J., Valisa M., Vallar M., Van Vugt D., Vartanian S., Vasilovici O., Verhaegh K., Vermare L., Vianello N., Viezzer E., Vijvers W. A. J., Villone F., Voitsekhovitch I., Vu N. M. T., Walkden N., Wauters T., Weiland M., Weisen H., Wensing M., Wiesenberger M., Wilkie G., Wischmeier M., Wu K., Yoshida M., Zagorski R., Zanca P., Zebrowski J., Zisis A., Zuin M., Coda, S, Agostini, M, Albanese, R, Alberti, S, Alessi, E, Allan, S, Allcock, J, Ambrosino, R, Anand, H, Andrebe, Y, Arnichand, H, Auriemma, F, Ayllon-Guerola, J, Bagnato, F, Ball, J, Baquero-Ruiz, M, Beletskii, A, Bernert, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bogar, O, Bolzonella, T, Bombarda, F, Bonanomi, N, Bouquey, F, Bowman, C, Brida, D, Bucalossi, J, Buermans, J, Bufferand, H, Buratti, P, Calabro, G, Calacci, L, Camenen, Y, Carnevale, D, Carpanese, F, Carr, M, Carraro, L, Casolari, A, Causa, F, Cerovsky, J, Chellai, O, Chmielewski, P, Choi, D, Christen, N, Ciraolo, G, Cordaro, L, Costea, S, Cruz, N, Czarnecka, A, Dal Molin, A, David, P, Decker, J, De Oliveira, H, Douai, D, Dreval, M, Dudson, B, Dunne, M, Duval, B, Eich, T, Elmore, S, Embreus, O, Esposito, B, Faitsch, M, Farnik, M, Fasoli, A, Fedorczak, N, Felici, F, Feng, S, Feng, X, Ferro, G, Fevrier, O, Ficker, O, Fil, A, Fontana, M, Frassinetti, L, Furno, I, Gahle, D, Galassi, D, Galazka, K, Gallo, A, Galperti, C, Garavaglia, S, Garcia, J, Garcia-Munoz, M, Garrido, A, Garrido, I, Gath, J, Geiger, B, Giruzzi, G, Gobbin, M, Goodman, T, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Gruca, M, Gyergyek, T, Hakola, A, Happel, T, Harrer, G, Harrison, J, Havlickova, E, Hawke, J, Henderson, S, Hennequin, P, Hesslow, L, Hogeweij, D, Hogge, J, Hopf, C, Hoppe, M, Horacek, J, Huang, Z, Hubbard, A, Iantchenko, A, Igochine, V, Innocente, P, Ionita Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kappatou, A, Karpushov, A, Kazantzidis, P, Keeling, D, Kirneva, N, Komm, M, Kong, M, Kovacic, J, Krawczyk, N, Kudlacek, O, Kurki-Suonio, T, Kwiatkowski, R, Labit, B, Lazzaro, E, Linehan, B, Lipschultz, B, Llobet, X, Lombroni, R, Loschiavo, V, Lunt, T, Macusova, E, Madsen, J, Maljaars, E, Mantica, P, Maraschek, M, Marchetto, C, Marco, A, Mariani, A, Marini, C, Martin, Y, Matos, F, Frisina, M, Mavkov, B, Mazon, D, Mccarthy, P, Mcdermott, R, Menkovski, V, Merle, A, Meyer, H, Micheletti, D, Militello, F, Mitosinkova, K, Mlynar, J, Moiseenko, V, Molina Cabrera, P, Morales, J, Moret, J, Moro, A, Mumgaard, R, Naulin, V, Nem, R, Nespoli, F, Nielsen, A, Nielsen, S, Nocente, M, Nowak, S, Offeddu, N, Orsitto, F, Paccagnella, R, Palha, A, Papp, G, Pau, A, Pavlichenko, R, Perek, A, Pericoli Ridolfini, V, Pesamosca, F, Piergotti, V, Pigatto, L, Piovesan, P, Piron, C, Plyusnin, V, Poli, E, Porte, L, Pucella, G, Puiatti, M, Putterich, T, Rabinski, M, Juul Rasmussen, J, Ravensbergen, T, Reich, M, Reimerdes, H, Reimold, F, Reux, C, Ricci, D, Ricci, P, Rispoli, N, Rosato, J, Saarelma, S, Salewski, M, Salmi, A, Sauter, O, Scheffer, M, Schlatter, C, Schneider, B, Schrittwieser, R, Sharapov, S, Sheeba, R, Sheikh, U, Shousha, R, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stipani, L, Strand, P, Tala, T, Tema Biwole, A, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tomaz, G, Tomes, M, Tran, M, Tsironis, C, Tsui, C, Urban, J, Valisa, M, Vallar, M, Van Vugt, D, Vartanian, S, Vasilovici, O, Verhaegh, K, Vermare, L, Vianello, N, Viezzer, E, Vijvers, W, Villone, F, Voitsekhovitch, I, Vu, N, Walkden, N, Wauters, T, Weiland, M, Weisen, H, Wensing, M, Wiesenberger, M, Wilkie, G, Wischmeier, M, Wu, K, Yoshida, M, Zagorski, R, Zanca, P, Zebrowski, J, Zisis, A, Zuin, M, Coda S., Agostini M., Albanese R., Alberti S., Alessi E., Allan S., Allcock J., Ambrosino R., Anand H., Andrebe Y., Arnichand H., Auriemma F., Ayllon-Guerola J. M., Bagnato F., Ball J., Baquero-Ruiz M., Beletskii A. A., Bernert M., Bin W., Blanchard P., Blanken T. C., Boedo J. A., Bogar O., Bolzonella T., Bombarda F., Bonanomi N., Bouquey F., Bowman C., Brida D., Bucalossi J., Buermans J., Bufferand H., Buratti P., Calabro G., Calacci L., Camenen Y., Carnevale D., Carpanese F., Carr M., Carraro L., Casolari A., Causa F., Cerovsky J., Chellai O., Chmielewski P., Choi D., Christen N., Ciraolo G., Cordaro L., Costea S., Cruz N., Czarnecka A., Dal Molin A., David P., Decker J., De Oliveira H., Douai D., Dreval M. B., Dudson B., Dunne M., Duval B. P., Eich T., Elmore S., Embreus O., Esposito B., Faitsch M., Farnik M., Fasoli A., Fedorczak N., Felici F., Feng S., Feng X., Ferro G., Fevrier O., Ficker O., Fil A., Fontana M., Frassinetti L., Furno I., Gahle D. S., Galassi D., Galazka K., Gallo A., Galperti C., Garavaglia S., Garcia J., Garcia-Munoz M., Garrido A. J., Garrido I., Gath J., Geiger B., Giruzzi G., Gobbin M., Goodman T. P., Gorini G., Gospodarczyk M., Granucci G., Graves J. P., Gruca M., Gyergyek T., Hakola A., Happel T., Harrer G. F., Harrison J., Havlickova E., Hawke J., Henderson S., Hennequin P., Hesslow L., Hogeweij D., Hogge J. -P., Hopf C., Hoppe M., Horacek J., Huang Z., Hubbard A., Iantchenko A., Igochine V., Innocente P., Ionita Schrittwieser C., Isliker H., Jacquier R., Jardin A., Kappatou A., Karpushov A., Kazantzidis P. -V., Keeling D., Kirneva N., Komm M., Kong M., Kovacic J., Krawczyk N., Kudlacek O., Kurki-Suonio T., Kwiatkowski R., Labit B., Lazzaro E., Linehan B., Lipschultz B., Llobet X., Lombroni R., Loschiavo V. P., Lunt T., Macusova E., Madsen J., Maljaars E., Mantica P., Maraschek M., Marchetto C., Marco A., Mariani A., Marini C., Martin Y., Matos F., FRISINA, MAURIZIO REMO DOMENICO, Mavkov B., Mazon D., McCarthy P., McDermott R., Menkovski V., Merle A., Meyer H., Micheletti D., Militello F., Mitosinkova K., Mlynar J., Moiseenko V., Molina Cabrera P. A., Morales J., Moret J. -M., Moro A., Mumgaard R. T., Naulin V., Nem R. D., Nespoli F., Nielsen A. H., Nielsen S. K., Nocente M., Nowak S., Offeddu N., Orsitto F. P., Paccagnella R., Palha A., Papp G., Pau A., Pavlichenko R. O., Perek A., Pericoli Ridolfini V., Pesamosca F., Piergotti V., Pigatto L., Piovesan P., Piron C., Plyusnin V., Poli E., Porte L., Pucella G., Puiatti M. E., Putterich T., Rabinski M., Juul Rasmussen J., Ravensbergen T., Reich M., Reimerdes H., Reimold F., Reux C., Ricci D., Ricci P., Rispoli N., Rosato J., Saarelma S., Salewski M., Salmi A., Sauter O., Scheffer M., Schlatter C., Schneider B. S., Schrittwieser R., Sharapov S., Sheeba R. R., Sheikh U., Shousha R., SILVA, MARTA, Sinha J., Sozzi C., Spolaore M., Stipani L., Strand P., Tala T., Tema Biwole A. S., Teplukhina A. A., Testa D., Theiler C., Thornton A., Tomaz G., Tomes M., Tran M. Q., Tsironis C., Tsui C. K., Urban J., Valisa M., Vallar M., Van Vugt D., Vartanian S., Vasilovici O., Verhaegh K., Vermare L., Vianello N., Viezzer E., Vijvers W. A. J., Villone F., Voitsekhovitch I., Vu N. M. T., Walkden N., Wauters T., Weiland M., Weisen H., Wensing M., Wiesenberger M., Wilkie G., Wischmeier M., Wu K., Yoshida M., Zagorski R., Zanca P., Zebrowski J., Zisis A., and Zuin M.
Abstract: The research program of the TCV tokamak ranges from conventional to advanced-tokamak scenarios and alternative divertor configurations, to exploratory plasmas driven by theoretical insight, exploiting the device's unique shaping capabilities. Disruption avoidance by real-time locked mode prevention or unlocking with electron-cyclotron resonance heating (ECRH) was thoroughly documented, using magnetic and radiation triggers. Runaway generation with high-Z noble-gas injection and runaway dissipation by subsequent Ne or Ar injection were studied for model validation. The new 1 MW neutral beam injector has expanded the parameter range, now encompassing ELMy H-modes in an ITER-like shape and nearly noninductive II-mode discharges sustained by electron cyclotron and neutral beam current drive. In the H-mode, the pedestal pressure increases modestly with nitrogen seeding while fueling moves the density pedestal outwards, but the plasma stored energy is largely uncorrelated to either seeding or fueling. High fueling at high triangularity is key to accessing the attractive small edge-localized mode (type-II) regime. Turbulence is reduced in the core at negative triangularity, consistent with increased confinement and in accord with global gyrokinetic simulations. The geodesic acoustic mode, possibly coupled with avalanche events, has been linked with particle flow to the wall in diverted plasmas. Detachment, scrape-off layer transport, and turbulence were studied in L- and H-modes in both standard and alternative configurations (snowflake, super-X, and beyond). The detachment process is caused by power `starvation' reducing the ionization source, with volume recombination playing only a minor role. Partial detachment in the H-mode is obtained with impurity seeding and has shown little dependence on flux expansion in standard single-null geometry. In the attached 1,-mode phase, increasing the outer connection length reduces the in-out heat-flow asymmetry. A doublet plasma, fe
Published: 2019

20. Physics research on the TCV tokamak facility: From conventional to alternative scenarios and beyond

Author: Swiss National Science Foundation, Coda, S., Agostini, Matteo, Albanese, R., Alberti, S., Alessi, E., Allan, S., Allcock, J., Ambrosino, R., Anand, H., Andrebe, Y., Arnichand, H., Gahle, D. S., Galassi, D., Pericoli Ridolfini, V., Gallo, A., Salmi, A., Calacci, L., Zagorski, R., Linehan, B., Harrer, G. F., Boedo, J. A., Vianello, N., Lipschultz, B., Llobet, X., Wilkie, G., Voitsekhovitch, I., Carraro, L., Lombroni, R., Granucci, G., Loschiavo, V. P., Lunt, T., Weiland, M., Viezzer, Eleonora, Chmielewski, P., Ball, J., Giruzzi, G., Macusova, E., Madsen, J., Hesslow, L., Zebrowski, J., Garrido, A. J., Maljaars, E., Mantica, P., Happel, T., Wischmeier, M., Galperti, C., Puiatti, M. E., Maraschek, M., Weisen, H., Reimold, F., Marchetto, C., Vu, N. M. T., Rosato, J., Marco, A., Vijvers, W. A. J., Scheffer, M., Mariani, A., Schrittwieser, R., Marini, C., Martin, Y., Baquero, M., Zisis, A., Hogeweij, D., Igochine, V., Kappatou, A., Kong, M., Matos, F., Maruzio, R., Mavkov, B., Sharapov, S. E., Schalatter, Ch., Saarelma, S., Reux, C., Pütterich, T., Mazon, D., McCarthy, P., Reimerdes, H., McDermott, R.M., Pucella, G., Menkovski, V., Hopf, C., Gruca, M., Merle, A., Buratti, P, Havlíčková, E., Meyer, H., Bouquey, F., Piergotti, V., Saelwski, M., Micheletti, D., Beletskii, A. A., Bufferand, H., Ricci, D., Garrido, I., Militello, F., Mitosinkova, K., Bonanomi, N., Rabinski, M., Ciraolo, G., Gobbin, M., Mlynář, J., Moiseenko, V., Wu, K., Molina Cabrera, P. A., Chellaï, Oulfa, Kazantzidis, P. V., Graves, J. P., Sheea, R. R., Pesamosca, F., Cordaro, L., Sheikh, U., Shousha, R., Goodman, T. P., Garavaglia, S., Kovacic, J., Silva, M., Offeddu, N., Sinha, J., Sozzi, C., Gath, J., Kwiatkowski, R., Hawke, J., Nespoli, F., Spolaore, M., Stipani, L., Poli, E., Gyergyek, T., Mumgaard, R. T., Bogar, O., Strand, P., Gorini, Giuseppe, Morales, J., Brida, D., Tala, T., Hubbard, A., Camenen, Y., Tema Biwole, A. S., García-Muñoz, M., Casolari, A., Teplukhina, A. A., Choi, D., Testa, D., Costea, S., Theiler, C., Thornton, A., Henderson, S., Iantchenko, A., Porte, L., Reich, M., Ricci, P., Tomaž, G., Tomes, M., Tran, M. Q., Cruz, N., Christen, N., Causa, F., Carnevale, D., Bucalossi, J., Bolzonella, T., Tsironis, C., Tsui, C. K., Bowman, C., Urban, J., Blanchard, P., Pavlinchenko, R. O., Valisa, M., Jardin, A., Pigatto, L., Vallar, M., Hakola, A., Čeřovský, J., Van Vugt, D., Hennequin, P., Ayllón Guerola, Juan Manuel, Carpanese , F., Naulin, V., Vartanian, S., Vasilovici, O., Geiger, B., Buermans, J., Nielsen, A. H., Verhaegh, K., Vermare, L., Gospodarczyk, M., Bombarda, T., Kurki-Suonio, T., Rispoli, N., Orsito, F. P., Czarnecka, A., Yoshida, M., Dal Molin, A., David, P., Nielsen, S. K., Moret, J. M., Sauter, O., Decker, J., Wensing, M., De Oliveira, H., Douai, D., Bernert, M., Piovesan, P., Walkden, N., Dreval, M. B., Hoppe, M., Zuin, M., Perek, A., Villone, F., Dudson, B., Dunne, M., Nocente, M., Ionita Schrittwieser, C., Duval, B. P., Nem, R. D., Keeling, D., Eich, T., Moro, A.M., Krawczyk, N., Elmore, S., Labit, B., Embréus, O., Esposito, B., Faitsch, M., Piron, C., Bin, W., EUROfusion MST1 Team, Calabró, G., Carr, M., Farník, M., Fasoli, M. A., Horáček, J., Lazzaro, E., Kudlacek, O., Kirneva, N., Isliker, H., Fedorczak, N., Felici, F., Feng, S., Innocente, P., Feng, X., Hogge, J. Ph., Ferró, G., Blanken, T. C., Zanka, P., Février, O., Ravensbergen, T., Bagnato, F., Ficker, O., Plyusnin, V., Harrison, J., Komm, M., Fil, A., Fontana, M., Rasmussen, Juul, Jacquier, R., Wauters, T., Frassinetti, L., Huang, Z., Nowak, S., Furno, I., Schneider, B. S., Wiesenberger, M., Swiss National Science Foundation, Coda, S., Agostini, Matteo, Albanese, R., Alberti, S., Alessi, E., Allan, S., Allcock, J., Ambrosino, R., Anand, H., Andrebe, Y., Arnichand, H., Gahle, D. S., Galassi, D., Pericoli Ridolfini, V., Gallo, A., Salmi, A., Calacci, L., Zagorski, R., Linehan, B., Harrer, G. F., Boedo, J. A., Vianello, N., Lipschultz, B., Llobet, X., Wilkie, G., Voitsekhovitch, I., Carraro, L., Lombroni, R., Granucci, G., Loschiavo, V. P., Lunt, T., Weiland, M., Viezzer, Eleonora, Chmielewski, P., Ball, J., Giruzzi, G., Macusova, E., Madsen, J., Hesslow, L., Zebrowski, J., Garrido, A. J., Maljaars, E., Mantica, P., Happel, T., Wischmeier, M., Galperti, C., Puiatti, M. E., Maraschek, M., Weisen, H., Reimold, F., Marchetto, C., Vu, N. M. T., Rosato, J., Marco, A., Vijvers, W. A. J., Scheffer, M., Mariani, A., Schrittwieser, R., Marini, C., Martin, Y., Baquero, M., Zisis, A., Hogeweij, D., Igochine, V., Kappatou, A., Kong, M., Matos, F., Maruzio, R., Mavkov, B., Sharapov, S. E., Schalatter, Ch., Saarelma, S., Reux, C., Pütterich, T., Mazon, D., McCarthy, P., Reimerdes, H., McDermott, R.M., Pucella, G., Menkovski, V., Hopf, C., Gruca, M., Merle, A., Buratti, P, Havlíčková, E., Meyer, H., Bouquey, F., Piergotti, V., Saelwski, M., Micheletti, D., Beletskii, A. A., Bufferand, H., Ricci, D., Garrido, I., Militello, F., Mitosinkova, K., Bonanomi, N., Rabinski, M., Ciraolo, G., Gobbin, M., Mlynář, J., Moiseenko, V., Wu, K., Molina Cabrera, P. A., Chellaï, Oulfa, Kazantzidis, P. V., Graves, J. P., Sheea, R. R., Pesamosca, F., Cordaro, L., Sheikh, U., Shousha, R., Goodman, T. P., Garavaglia, S., Kovacic, J., Silva, M., Offeddu, N., Sinha, J., Sozzi, C., Gath, J., Kwiatkowski, R., Hawke, J., Nespoli, F., Spolaore, M., Stipani, L., Poli, E., Gyergyek, T., Mumgaard, R. T., Bogar, O., Strand, P., Gorini, Giuseppe, Morales, J., Brida, D., Tala, T., Hubbard, A., Camenen, Y., Tema Biwole, A. S., García-Muñoz, M., Casolari, A., Teplukhina, A. A., Choi, D., Testa, D., Costea, S., Theiler, C., Thornton, A., Henderson, S., Iantchenko, A., Porte, L., Reich, M., Ricci, P., Tomaž, G., Tomes, M., Tran, M. Q., Cruz, N., Christen, N., Causa, F., Carnevale, D., Bucalossi, J., Bolzonella, T., Tsironis, C., Tsui, C. K., Bowman, C., Urban, J., Blanchard, P., Pavlinchenko, R. O., Valisa, M., Jardin, A., Pigatto, L., Vallar, M., Hakola, A., Čeřovský, J., Van Vugt, D., Hennequin, P., Ayllón Guerola, Juan Manuel, Carpanese , F., Naulin, V., Vartanian, S., Vasilovici, O., Geiger, B., Buermans, J., Nielsen, A. H., Verhaegh, K., Vermare, L., Gospodarczyk, M., Bombarda, T., Kurki-Suonio, T., Rispoli, N., Orsito, F. P., Czarnecka, A., Yoshida, M., Dal Molin, A., David, P., Nielsen, S. K., Moret, J. M., Sauter, O., Decker, J., Wensing, M., De Oliveira, H., Douai, D., Bernert, M., Piovesan, P., Walkden, N., Dreval, M. B., Hoppe, M., Zuin, M., Perek, A., Villone, F., Dudson, B., Dunne, M., Nocente, M., Ionita Schrittwieser, C., Duval, B. P., Nem, R. D., Keeling, D., Eich, T., Moro, A.M., Krawczyk, N., Elmore, S., Labit, B., Embréus, O., Esposito, B., Faitsch, M., Piron, C., Bin, W., EUROfusion MST1 Team, Calabró, G., Carr, M., Farník, M., Fasoli, M. A., Horáček, J., Lazzaro, E., Kudlacek, O., Kirneva, N., Isliker, H., Fedorczak, N., Felici, F., Feng, S., Innocente, P., Feng, X., Hogge, J. Ph., Ferró, G., Blanken, T. C., Zanka, P., Février, O., Ravensbergen, T., Bagnato, F., Ficker, O., Plyusnin, V., Harrison, J., Komm, M., Fil, A., Fontana, M., Rasmussen, Juul, Jacquier, R., Wauters, T., Frassinetti, L., Huang, Z., Nowak, S., Furno, I., Schneider, B. S., and Wiesenberger, M.
Abstract: The research program of the TCV tokamak ranges from conventional to advanced-tokamak scenarios and alternative divertor configurations, to exploratory plasmas driven by theoretical insight, exploiting the device's unique shaping capabilities. Disruption avoidance by real-time locked mode prevention or unlocking with electron-cyclotron resonance heating (ECRH) was thoroughly documented, using magnetic and radiation triggers. Runaway generation with high-Z noble-gas injection and runaway dissipation by subsequent Ne or Ar injection were studied for model validation. The new 1 MW neutral beam injector has expanded the parameter range, now encompassing ELMy H-modes in an ITER-like shape and nearly non-inductive H-mode discharges sustained by electron cyclotron and neutral beam current drive. In the H-mode, the pedestal pressure increases modestly with nitrogen seeding while fueling moves the density pedestal outwards, but the plasma stored energy is largely uncorrelated to either seeding or fueling. High fueling at high triangularity is key to accessing the attractive small edge-localized mode (type-II) regime. Turbulence is reduced in the core at negative triangularity, consistent with increased confinement and in accord with global gyrokinetic simulations. The geodesic acoustic mode, possibly coupled with avalanche events, has been linked with particle flow to the wall in diverted plasmas. Detachment, scrape-off layer transport, and turbulence were studied in L- and H-modes in both standard and alternative configurations (snowflake, super-X, and beyond). The detachment process is caused by power 'starvation' reducing the ionization source, with volume recombination playing only a minor role. Partial detachment in the H-mode is obtained with impurity seeding and has shown little dependence on flux expansion in standard single-null geometry. In the attached L-mode phase, increasing the outer connection length reduces the in-out heat-flow asymmetry. A doublet plasma, fea
Published: 2019

21. DESIGN AND OPERATION OF THE POWER INSTALLATION FOR THE TCV ECR ADDITIONAL HEATING This project is partly supported by Swiss National Science Foundation

Author: Fasel, D., primary, Alex, J., additional, Favre, A., additional, Goodman, T., additional, Henderson, M., additional, Isoz, P.-F., additional, Perez, A., additional, and Tran, M.-Q., additional
Published: 1997
Full Text: View/download PDF

22. Experimental results and recent developments on the EU 2 MW 170 GHz coaxial cavity gyrotron for ITER

Author: Thumm M. K., Rzesnicki T., Piosczyk B., Pagonakis I. Gr., Li F., Jin J., Jelonnek J., Illy S., Gantenbein G., Avramides K., Alberti S., Hogge J.-P., Kern S., Tigelis I., and Tran M. Q.
Subjects: Physics, QC1-999
Abstract: The European Gyrotron Consortium (EGYC) is responsible for developing one set of 170 GHz mm-wave sources, in support of Europe’s contribution to ITER. The original plan of targeting a 2 MW coaxial gyrotron is currently under discussion, in view of essential delays and damages. This paper reports on the latest results and plans with regard to the two 2 MW gyrotron prototypes, the industrial prototype at CRPP’s CW test stand and a modular pre-prototype at KIT. The industrial prototype was delivered to CRPP end of September 2011 and reached an output power of 2 MW at an efficiency of 45 % and with good RF beam pattern, in only four days of short pulse RF test. These results validated all design changes made in reaction to the results of the experiments in 2008. On the fifth experimental day, an internal absorber broke, terminating any further experiment with this tube. In parallel, design and experimental activities at KIT went on, in particular featuring reduced stray radiation down to 4% of the RF power. Next years’ plans for the 2 MW modular pre-prototype foresee a stepwise increase of pulse length.
Published: 2012
Full Text: View/download PDF

23. Recent progress in the development of the European 1 MW, 170 GHz CW gyrotron for ITER

Author: Gantenbein, G., Albajar, F., Alberti, S., Avramidis, K., Bin, W., Bruschi, A., Chelis, J., Fanale, F., Legrand, F., Hermann, V., Hogge, J. P., Illy, S., Ioannidis, Z. C., Jin, J., Jelonnek, J., Kasparek, W., Latsas, G. P., Lechte, C., Lontano, M., Pagonakis, I. G., Rzesnicki, T., Sanchez, P., Schlatter, C., Schmid, M., Tigelis, I. G., Thumm, M., Tran, M. Q., Zein, A., and Zisis, A.
Subjects: Technology, ddc:600
Published: 2018

24. Recent experiments with the European 1 MW, 170 GHz industrial CW and modular SP prototype gyrotron for ITER

Author: Ioannidis, Z. C., Rzesnicki, T., Avramidis, K., Gantenbein, Gerd, Illy, Stefan, Jelonnek, John, Jin, J., Pagonakis, I. Gr., Schmid, M., Thumm, Manfred, Zein, A., Hermann, V., Legrand, F., Kasparek, W., Lechte, C., Alberti, S., Genoud, J., Hogge, J. P., Schlatter, C., Tran, M. Q., Chelis, J., Latsas, G. P., Tigelis, I. G., Zisis, A., Bruschi, A., Bin, W., Fanale, F., Albajar, F., Bonicelli, T., and Sanchez, F.
Subjects: Technology, ddc:600
Published: 2018

25. Chatter Identification in End Milling Process Based on Cutting Force Signal Processing

Author: Tran, M Q, primary and Liu, M K, additional
Published: 2019
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26. DEMO-Relevant Gyrotron Research at KIT

Author: Avramidis, K. A., primary, Jin, J., additional, Kalaria, P. C., additional, Marek, A., additional, Pagonakis, I. Gr., additional, Ruess, S., additional, Ruess, T., additional, Rzesnicki, T., additional, Scherer, T., additional, Schmid, M., additional, Strauss, D., additional, Aiello, G., additional, Thumm, M., additional, Tran, M. Q., additional, Wu, C., additional, Jelonnek, J., additional, Brucker, P. T., additional, Ell, B., additional, Franke, T., additional, Gantenbein, G., additional, Grossetti, G., additional, Illy, S., additional, and Ioannidis, Z. C., additional
Published: 2019
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27. Review of the Innovative H&CD Designs and the Impact of Their Configurations on the Performance of the EU DEMO Fusion Power Plant Reactor

Author: Franke, T., Agostinetti, P., Aiello, G., Avramidis, K., Bachmann, Ch., Bruschi, A., Federici, G., Garavaglia, S., Granucci, G., Grossetti, G., Jelonnek, J., Noterdaeme, J.-M., Simonin, A., Scherer, T., Sonato, P., Strauss, D., Tran, M. Q., Valentine, A., Vincenzi, P., Wenninger, R., Zheng, S., Franke, T., Agostinetti, P., Aiello, G., Avramidis, K., Bachmann, Ch., Bruschi, A., Federici, G., Garavaglia, S., Granucci, G., Grossetti, G., Jelonnek, J., Noterdaeme, J.-M., Simonin, A., Scherer, T., Sonato, P., Strauss, D., Tran, M. Q., Valentine, A., Vincenzi, P., Wenninger, R., and Zheng, S.
Published: 2018
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28. Novel linear analysis for a gyrotron oscillator based on a spectral approach

Author: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Plasma Science and Fusion Center, Tax, David Samuel, Guss, William C, Temkin, Richard J, Genoud, J., Tran, T. M., Alberti, S., Braunmueller, F., Hogge, J.-Ph., Tran, M. Q., Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Plasma Science and Fusion Center, Tax, David Samuel, Guss, William C, Temkin, Richard J, Genoud, J., Tran, T. M., Alberti, S., Braunmueller, F., Hogge, J.-Ph., and Tran, M. Q.
Abstract: With the aim of gaining a better physical insight into linear regimes in gyrotrons, a new linear model was developed. This model is based on a spectral approach for solving the self-consistent system of equations describing the wave-particle interaction in the cavity of a gyrotron oscillator. Taking into account the wall-losses self-consistently and including the main system inhomogeneities in the cavity geometry and in the magnetic field, the model is appropriate to consider real system parameters. The main advantage of the spectral approach, compared with a time-dependent approach, is the possibility to describe all of the stable and unstable modes, respectively, with negative and positive growth rates. This permits to reveal the existence of a new set of eigenmodes, in addition to the usual eigenmodes issued from cold-cavity modes. The proposed model can be used for studying other instabilities such as, for instance, backward waves potentially excited in gyrotron beam tunnels., United States. Department of Energy. Office of Fusion Energy Sciences (Grant DE-FC02-93ER54186)
Published: 2018

29. European research activities towards a future DEMO gyrotron

Author: Jelonnek, J., Aiello, G., Alberti, S., Avramidis, K., Bertinetti, A., Bruschi, A., Chelis, J., Franke, T., Gantenbein, G., Garavaglia, S., Granucci, G., Grossetti, G., Illy, S., Ioannidis, Z. C., Jin, J., Kalaria, P., Latsas, G. P., Laqua, H., Leggieri, A., Legrand, F., Marek, A., Pagonakis, I. Gr., Peponis, D., Savoldi, L., Rzesnicki, T., Ruess, S., Ruess, T., Scherer, T., Schmid, M., Strauss, D., Tigelis, I., Thumm, M., Tran, M. Q., Wilde, F., Wu, C., Zanino, R., Zein, A., and Litvak, A. G.
Subjects: 010302 applied physics, Physics, Technology, QC1-999, European research, 01 natural sciences, Engineering physics, 010305 fluids & plasmas, law.invention, ___, law, Gyrotron, 0103 physical sciences, Systems engineering, ddc:600
Abstract: ___
Published: 2017

30. The EC-system of EU DEMO: concepts for a reactor heating system

Author: Granucci, G. Aiello, G. Avramidis, K. A. Bruschi, A. and Gantenbein, G. Garavaglia, S. Grossetti, G. Jelonnek, J. and Moro, A. Poli, E. Rispoli, N. Strauss, D. Thumm, M. and Tigelis, I. Tsironis, C. Franke, T. Tran, M. Q.
Published: 2017

31. Experiments with the EU 1 MW, 170 GHz industrial prototype gyrotron for ITER at KIT

Author: Ioannidis, ZC (Ioannidis, Zisis C.)[ 1 ], Rzesnicki, T (Rzesnicki, Tomasz)[ 1 ], Albajar, F (Albajar, F.)[ 7 ], Alberti, S (Alberti, S.)[ 2 ], Avramidis, KA (Avramidis, Konstantinos A.)[ 1 ], Bin, W (Bin, William)[ 5 ], Bonicelli, T (Bonicelli, T.)[ 7 ], Bruschi, A (Bruschi, Alessandro)[ 5 ], Chelis, I (Chelis, Ioannis)[ 4 ], Frigot, PE (Frigot, P. -E.)[ 7 ], Gantenbein, G (Gantenbein, Gerd)[ 1 ], Hermann, V (Hermann, V.)[ 6 ], Hogge, JP (Hogge, J. -P.)[ 2 ], Illy, S (Illy, Stefan)[ 1 ], Jin, J (Jin, Jianbo)[ 1 ], Jelonnek, J (Jelonnek, John)[ 1 ], Kasparek, W (Kasparek, W.)[ 3 ], Latsas, G (Latsas, G.)[ 4 ], Lechte, C (Lechte, C.)[ 3 ], Legrand, F (Legrand, F.)[ 6 ], Kobarg, T (Kobarg, Thorsten)[ 1 ], Pagonakis, IG (Pagonakis, Ioannis Gr.)[ 1 ], Rozier, Y (Rozier, Y.)[ 6 ], Schlatter, C (Schlatter, C.)[ 2 ], Schmid, M (Schmid, Martin)[ 1 ], Tigelis, IG (Tigelis, Ioannis G.)[ 4 ], Thumm, M (Thumm, Manfred)[ 1 ], Tran, MQ (Tran, M. Q.)[ 2 ], Zein, A (Zein, Andy)[ 1 ], and Zisis, A (Zisis, A.)[ 4 ]
Subjects: Electron cyclotron resonance heating and current drive (ECRH&CD); gyrotron, international thermonuclear experimental reactor (ITER)
Abstract: The European 1-MW, 170-GHz continuous wave industrial prototype gyrotron for electron cyclotron resonance heating and current drive on international thermonuclear experimental reactor was during 2016 under test at the Karlsruhe Institute of Technology (KIT) test facility. In order to optimize the gyrotron operation, the tube was at first thoroughly tested in the short-pulse regime, with pulses that did not exceed 10 ms, for a wide range of operational parameters. Then, and after proper conditioning of the tube, the operation was extended to longer pulses with duration up to 180 s, which is the maximum pulselength possible at the KIT test facility. In this paper, we present in detail the achievements of the long-pulse experimental campaign.
Published: 2017

32. Experimental benchmark of the NINJA code for application to the Linac4 H- ion source plasma

Author: Briefi, S, Mattei, S, Rauner, D, Lettry, J, Tran, M Q, and Fantz, U
Subjects: negative hydrogen ion sources for accelerators, benchmark of PIC code, Physics::Plasma Physics, ddc:530, OES measurements, Accelerators and Storage Rings
Abstract: For a dedicated performance optimization of negative hydrogen ion sources applied at particle accelerators, a detailed assessment of the plasma processes is required. Due to the compact design of these sources, diagnostic access is typically limited to optical emission spectroscopy yielding only line-of-sight integrated results. In order to allow for a spatially resolved investigation, the electromagnetic particle-in-cell Monte Carlo collision code NINJA has been developed for the Linac4 ion source at CERN. This code considers the RF field generated by the ICP coil as well as the external static magnetic fields and calculates self-consistently the resulting discharge properties. NINJA is benchmarked at the diagnostically well accessible lab experiment CHARLIE Concept studies forHelicon Assisted RF Low pressure Ion sourcEs) at varying RF power and gas pressure. A good general agreement is observed between experiment and simulation although the simulated electron density trends for varying pressure and power as well as the absolute electron temperature values deviate slightly from the measured ones. This can be explained by the assumption of strong inductive coupling in NINJA, whereas the CHARLIE discharges show the characteristics of loosely coupled plasmas. For the Linac4 plasma, this assumption is valid. Accordingly, both the absolute values of the accessible plasma parameters and their trends for varying RF power agree well in measurement and simulation. At varying RF power, the H- current extracted from the Linac4 source peaks at 40. kW. For volume operation, this is perfectly reflected by assessing the processes in front of the extraction aperture based on the simulation results where the highest H- density is obtained for the same power level. In surface operation, the production of negative hydrogen ions at the converter surface can only be considered by specialized beam formation codes, which require plasma parameters as input. It has been demonstrated that this input can be provided reliably by the NINJA code.
Published: 2017

33. European research activities towards a future DEMO gyrotron

Author: Jelonnek, J. Aiello, G. Alberti, S. Avramidis, K. and Bertinetti, A. Bruschi, A. Chelis, J. Franke, T. and Gantenbein, G. Garavaglia, S. Granucci, G. Grossetti, G. and Illy, S. Ioannidis, Z. C. Jin, J. Kalaria, P. Latsas, G. P. Laqua, H. Leggieri, A. Legrand, F. Marek, A. and Pagonakis, I. Gr. Peponis, D. Savoldi, L. Rzesnicki, T. and Ruess, S. Ruess, T. Scherer, T. Schmid, M. Strauss, D. and Tigelis, I. Thumm, M. Tran, M. Q. Wilde, F. Wu, C. and Zanino, R. Zein, A.
Published: 2017

34. Parasitic Oscillations in Smooth-Wall Circular Symmetric Gyrotron Beam Ducts

Author: Genoud, J., primary, Alberti, S., additional, Tran, T. M., additional, Le Bars, G., additional, Kaminski, P., additional, Hogge, J.-Ph., additional, Avramidis, K. A., additional, and Tran, M. Q., additional
Published: 2018
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35. Overview of Recent Gyrotron R&D at KIT in View of the EU DEMO

Author: Avramidis, K. A., primary, Aiello, G., additional, Brucker, P. T., additional, Gantenbein, G., additional, George, M., additional, Grossetti, G., additional, Illy, S., additional, Joannidis, IZ. C., additional, Jin, J., additional, Kalaria, P. C., additional, Marek, A., additional, Pazonakis, I. Gr., additional, Ruess, S., additional, Ruess, T., additional, Rzesnicki, T., additional, Scherer, T., additional, Schmid, M., additional, Strauss, D., additional, Thumm, M., additional, Wu, C., additional, Zein, A., additional, Jelonnek, J., additional, Franke, T., additional, and Tran, M. Q., additional
Published: 2018
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36. Review of the Innovative H&CD Designs and the Impact of Their Configurations on the Performance of the EU DEMO Fusion Power Plant Reactor

Author: Franke, T., primary, Agostinetti, P., additional, Aiello, G., additional, Avramidis, K., additional, Bachmann, Ch., additional, Bruschi, A., additional, Federici, G., additional, Garavaglia, S., additional, Granucci, G., additional, Grossetti, G., additional, Jelonnek, J., additional, Noterdaeme, J.-M., additional, Simonin, A., additional, Scherer, T., additional, Sonato, P., additional, Strauss, D., additional, Tran, M. Q., additional, Valentine, A., additional, Vincenzi, P., additional, Wenninger, R., additional, and Zheng, S., additional
Published: 2018
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37. Gyrotron: from the concept to the physics and technology issues related to megawatt sources for fusion reactor

Author: Tran, M. Q., primary
Published: 2017
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38. Overview of the TCV tokamak program : Scientific progress and facility upgrades

Author: Coda, S., Ahn, J., Albanese, R., Alberti, S., Alessi, E., Allan, S., Anand, H., Anastassiou, G., Andrèbe, Y., Angioni, C., Ariola, M., Bernert, M., Beurskens, M., Bin, W., Blanchard, P., Blanken, T. C., Boedo, J. A., Bolzonella, T., Bouquey, F., Braunmüller, F. H., Bufferand, H., Buratti, P., Calabró, G., Camenen, Y., Carnevale, D., Carpanese, F., Causa, F., Cesario, R., Chapman, I. T., Chellai, O., Choi, D., Cianfarani, C., Ciraolo, G., Citrin, J., Costea, S., Crisanti, F., Cruz, N., Czarnecka, A., Decker, J., De Masi, G., De Tommasi, G., Douai, D., Dunne, M., Duval, B. P., Eich, T., Elmore, S., Esposito, B., Faitsch, M., Fasoli, A., Fedorczak, N., Felici, F., Février, O., Ficker, O., Fietz, S., Fontana, M., Frassinetti, Lorenzo, Furno, I., Galeani, S., Gallo, A., Galperti, C., Garavaglia, S., Garrido, I., Geiger, B., Giovannozzi, E., Gobbin, M., Goodman, T. P., Gorini, G., Gospodarczyk, M., Granucci, G., Graves, J. P., Guirlet, R., Hakola, A., Ham, C., Harrison, J., Hawke, J., Hennequin, P., Hnat, B., Hogeweij, D., Hogge, J. -P, Honoré, C., Hopf, C., Horáček, J., Huang, Z., Igochine, V., Innocente, P., Ionita Schrittwieser, C., Isliker, H., Jacquier, R., Jardin, A., Kamleitner, J., Karpushov, A., Keeling, D. L., Kirneva, N., Kong, M., Koubiti, M., Kovacic, J., Krämer-Flecken, A., Krawczyk, N., Kudlacek, O., Labit, B., Lazzaro, E., Le, H. B., Lipschultz, B., Llobet, X., Lomanowski, B., Loschiavo, V. P., Lunt, T., Maget, P., Maljaars, E., Malygin, A., Maraschek, M., Marini, C., Martin, P., Martin, Y., Mastrostefano, S., Maurizio, R., Mavridis, M., Mazon, D., McAdams, R., McDermott, R., Merle, A., Meyer, H., Militello, F., Miron, I. G., Molina Cabrera, P. A., Moret, J. -M, Moro, A., Moulton, D., Naulin, V., Nespoli, F., Nielsen, A. H., Nocente, M., Nouailletas, R., Nowak, S., Odstrčil, T., Papp, G., Papřok, R., Pau, A., Pautasso, G., Pericoli Ridolfini, V., Piovesan, P., Piron, C., Pisokas, T., Porte, L., Preynas, M., Ramogida, G., Rapson, C., Juul Rasmussen, J., Reich, M., Reimerdes, H., Reux, C., Ricci, P., Rittich, D., Riva, F., Robinson, T., Saarelma, S., Saint-Laurent, F., Sauter, O., Scannell, R., Schlatter, C., Schneider, B., Schneider, P., Schrittwieser, R., Sciortino, F., Sertoli, M., Sheikh, U., Sieglin, B., Silva, M., Sinha, J., Sozzi, C., Spolaore, M., Stange, T., Stoltzfus-Dueck, T., Tamain, P., Teplukhina, A., Testa, D., Theiler, C., Thornton, A., Tophøj, L., Tran, M. Q., Tsironis, C., Tsui, C., Uccello, A., Vartanian, S., Verdoolaege, G., Verhaegh, K., Vermare, L., Vianello, N., Vijvers, W. A. J., Vlahos, L., Vu, N. M. T., Walkden, N., Wauters, T., Weisen, H., Wischmeier, M., Zestanakis, P., Zuin, M., Coda, S., Ahn, J., Albanese, R., Alberti, S., Alessi, E., Allan, S., Anand, H., Anastassiou, G., Andrèbe, Y., Angioni, C., Ariola, M., Bernert, M., Beurskens, M., Bin, W., Blanchard, P., Blanken, T. C., Boedo, J. A., Bolzonella, T., Bouquey, F., Braunmüller, F. H., Bufferand, H., Buratti, P., Calabró, G., Camenen, Y., Carnevale, D., Carpanese, F., Causa, F., Cesario, R., Chapman, I. T., Chellai, O., Choi, D., Cianfarani, C., Ciraolo, G., Citrin, J., Costea, S., Crisanti, F., Cruz, N., Czarnecka, A., Decker, J., De Masi, G., De Tommasi, G., Douai, D., Dunne, M., Duval, B. P., Eich, T., Elmore, S., Esposito, B., Faitsch, M., Fasoli, A., Fedorczak, N., Felici, F., Février, O., Ficker, O., Fietz, S., Fontana, M., Frassinetti, Lorenzo, Furno, I., Galeani, S., Gallo, A., Galperti, C., Garavaglia, S., Garrido, I., Geiger, B., Giovannozzi, E., Gobbin, M., Goodman, T. P., Gorini, G., Gospodarczyk, M., Granucci, G., Graves, J. P., Guirlet, R., Hakola, A., Ham, C., Harrison, J., Hawke, J., Hennequin, P., Hnat, B., Hogeweij, D., Hogge, J. -P, Honoré, C., Hopf, C., Horáček, J., Huang, Z., Igochine, V., Innocente, P., Ionita Schrittwieser, C., Isliker, H., Jacquier, R., Jardin, A., Kamleitner, J., Karpushov, A., Keeling, D. L., Kirneva, N., Kong, M., Koubiti, M., Kovacic, J., Krämer-Flecken, A., Krawczyk, N., Kudlacek, O., Labit, B., Lazzaro, E., Le, H. B., Lipschultz, B., Llobet, X., Lomanowski, B., Loschiavo, V. P., Lunt, T., Maget, P., Maljaars, E., Malygin, A., Maraschek, M., Marini, C., Martin, P., Martin, Y., Mastrostefano, S., Maurizio, R., Mavridis, M., Mazon, D., McAdams, R., McDermott, R., Merle, A., Meyer, H., Militello, F., Miron, I. G., Molina Cabrera, P. A., Moret, J. -M, Moro, A., Moulton, D., Naulin, V., Nespoli, F., Nielsen, A. H., Nocente, M., Nouailletas, R., Nowak, S., Odstrčil, T., Papp, G., Papřok, R., Pau, A., Pautasso, G., Pericoli Ridolfini, V., Piovesan, P., Piron, C., Pisokas, T., Porte, L., Preynas, M., Ramogida, G., Rapson, C., Juul Rasmussen, J., Reich, M., Reimerdes, H., Reux, C., Ricci, P., Rittich, D., Riva, F., Robinson, T., Saarelma, S., Saint-Laurent, F., Sauter, O., Scannell, R., Schlatter, C., Schneider, B., Schneider, P., Schrittwieser, R., Sciortino, F., Sertoli, M., Sheikh, U., Sieglin, B., Silva, M., Sinha, J., Sozzi, C., Spolaore, M., Stange, T., Stoltzfus-Dueck, T., Tamain, P., Teplukhina, A., Testa, D., Theiler, C., Thornton, A., Tophøj, L., Tran, M. Q., Tsironis, C., Tsui, C., Uccello, A., Vartanian, S., Verdoolaege, G., Verhaegh, K., Vermare, L., Vianello, N., Vijvers, W. A. J., Vlahos, L., Vu, N. M. T., Walkden, N., Wauters, T., Weisen, H., Wischmeier, M., Zestanakis, P., and Zuin, M.
Abstract: The TCV tokamak is augmenting its unique historical capabilities (strong shaping, strong electron heating) with ion heating, additional electron heating compatible with high densities, and variable divertor geometry, in a multifaceted upgrade program designed to broaden its operational range without sacrificing its fundamental flexibility. The TCV program is rooted in a three-pronged approach aimed at ITER support, explorations towards DEMO, and fundamental research. A 1 MW, tangential neutral beam injector (NBI) was recently installed and promptly extended the TCV parameter range, with record ion temperatures and toroidal rotation velocities and measurable neutral-beam current drive. ITER-relevant scenario development has received particular attention, with strategies aimed at maximizing performance through optimized discharge trajectories to avoid MHD instabilities, such as peeling-ballooning and neoclassical tearing modes. Experiments on exhaust physics have focused particularly on detachment, a necessary step to a DEMO reactor, in a comprehensive set of conventional and advanced divertor concepts. The specific theoretical prediction of an enhanced radiation region between the two X-points in the low-field-side snowflake-minus configuration was experimentally confirmed. Fundamental investigations of the power decay length in the scrape-off layer (SOL) are progressing rapidly, again in widely varying configurations and in both D and He plasmas; in particular, the double decay length in L-mode limited plasmas was found to be replaced by a single length at high SOL resistivity. Experiments on disruption mitigation by massive gas injection and electron-cyclotron resonance heating (ECRH) have begun in earnest, in parallel with studies of runaway electron generation and control, in both stable and disruptive conditions; a quiescent runaway beam carrying the entire electrical current appears to develop in some cases. Developments in plasma control have benefited from pr, QC 20171212
Published: 2017
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39. Overview of the TCV tokamak program: Scientific progress and facility upgrades

Author: Coda, S, Ahn, J, Albanese, R, Alberti, S, Alessi, E, Allan, S, Anand, H, Anastassiou, G, Andrãbe, Y, Angioni, C, Ariola, M, Bernert, M, Beurskens, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bolzonella, T, Bouquey, F, Braunmã1⁄4ller, F, Bufferand, H, Buratti, P, Calabrã3, G, Camenen, Y, Carnevale, D, Carpanese, F, Causa, F, Cesario, R, Chapman, I, Chellai, O, Choi, D, Cianfarani, C, Ciraolo, G, Citrin, J, Costea, S, Crisanti, F, Cruz, N, Czarnecka, A, Decker, J, De Masi, G, De Tommasi, G, Douai, D, Dunne, M, Duval, B, Eich, T, Elmore, S, Esposito, B, Faitsch, M, Fasoli, A, Fedorczak, N, Felici, F, Fã©vrier, O, Ficker, O, Fietz, S, Fontana, M, Frassinetti, L, Furno, I, Galeani, S, Gallo, A, Galperti, C, Garavaglia, S, Garrido, I, Geiger, B, Giovannozzi, E, Gobbin, M, Goodman, T, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Guirlet, R, Hakola, A, Ham, C, Harrison, J, Hawke, J, Hennequin, P, Hnat, B, Hogeweij, D, Hogge, J, Honorã©, C, Hopf, C, Horã¡ä ek, J, Huang, Z, Igochine, V, Innocente, P, Ionita Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kamleitner, J, Karpushov, A, Keeling, D, Kirneva, N, Kong, M, Koubiti, M, Kovacic, J, KrÃ¤mer-Flecken, A, Krawczyk, N, Kudlacek, O, Labit, B, Lazzaro, E, Le, H, Lipschultz, B, Llobet, X, Lomanowski, B, Loschiavo, V, Lunt, T, Maget, P, Maljaars, E, Malygin, A, Maraschek, M, Marini, C, Martin, P, Martin, Y, Mastrostefano, S, Maurizio, R, Mavridis, M, Mazon, D, Mcadams, R, Mcdermott, R, Merle, A, Meyer, H, Militello, F, Miron, I, Molina Cabrera, P, Moret, J, Moro, A, Moulton, D, Naulin, V, Nespoli, F, Nielsen, A, Nocente, M, Nouailletas, R, Nowak, S, Odsträ il, T, Papp, G, PapÅTMok, R, Pau, A, Pautasso, G, Pericoli Ridolfini, V, Piovesan, P, Piron, C, Pisokas, T, Porte, L, Preynas, M, Ramogida, G, Rapson, C, Juul Rasmussen, J, Reich, M, Reimerdes, H, Reux, C, Ricci, P, Rittich, D, Riva, F, Robinson, T, Saarelma, S, Saint-Laurent, F, Sauter, O, Scannell, R, Schlatter, C, Schneider, B, Schneider, P, Schrittwieser, R, Sciortino, F, Sertoli, M, Sheikh, U, Sieglin, B, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stange, T, Stoltzfus-Dueck, T, Tamain, P, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tophã ̧j, L, Tran, M, Tsironis, C, Tsui, C, Uccello, A, Vartanian, S, Verdoolaege, G, Verhaegh, K, Vermare, L, Vianello, N, Vijvers, W, Vlahos, L, Vu, N, Walkden, N, Wauters, T, Weisen, H, Wischmeier, M, Zestanakis, P, Zuin, M, Coda, S., Ahn, J., Albanese, R., Alberti, S., Alessi, E., Allan, S., Anand, H., Anastassiou, G., AndrÃbe, Y., Angioni, C., Ariola, M., Bernert, M., Beurskens, M., Bin, W., Blanchard, P., Blanken, T. C., Boedo, J. A., Bolzonella, T., Bouquey, F., BraunmÃ1⁄4ller, F. H., Bufferand, H., Buratti, P., CalabrÃ3, G., Camenen, Y., Carnevale, D., Carpanese, F., Causa, F., Cesario, R., Chapman, I. T., Chellai, O., Choi, D., Cianfarani, C., Ciraolo, G., Citrin, J., Costea, S., Crisanti, F., Cruz, N., Czarnecka, A., Decker, J., De Masi, G., De Tommasi, G., Douai, D., Dunne, M., Duval, B. P., Eich, T., Elmore, S., Esposito, B., Faitsch, M., Fasoli, A., Fedorczak, N., Felici, F., FÃ©vrier, O., Ficker, O., Fietz, S., Fontana, M., Frassinetti, L., Furno, I., Galeani, S., Gallo, A., Galperti, C., Garavaglia, S., Garrido, I., Geiger, B., Giovannozzi, E., Gobbin, M., Goodman, T. P., Gorini, G., Gospodarczyk, M., Granucci, G., Graves, J. P., Guirlet, R., Hakola, A., Ham, C., Harrison, J., Hawke, J., Hennequin, P., Hnat, B., Hogeweij, D., Hogge, J. -Ph, HonorÃ©, C., Hopf, C., HorÃ¡Äek, J., Huang, Z., Igochine, V., Innocente, P., Ionita Schrittwieser, C., Isliker, H., Jacquier, R., Jardin, A., Kamleitner, J., Karpushov, A., Keeling, D. L., Kirneva, N., Kong, M., Koubiti, M., Kovacic, J., KrÃ¤mer-Flecken, A., Krawczyk, N., Kudlacek, O., Labit, B., Lazzaro, E., Le, H. B., Lipschultz, B., Llobet, X., Lomanowski, B., Loschiavo, V. P., Lunt, T., Maget, P., Maljaars, E., Malygin, A., Maraschek, M., Marini, C., Martin, P., Martin, Y., Mastrostefano, S., Maurizio, R., Mavridis, M., Mazon, D., McAdams, R., McDermott, R., Merle, A., Meyer, H., Militello, F., Miron, I. G., Molina Cabrera, P. A., Moret, J. -.M., Moro, A., Moulton, D., Naulin, V., Nespoli, F., Nielsen, A. H., Nocente, M., Nouailletas, R., Nowak, S., OdstrÄil, T., Papp, G., PapÅTMok, R., Pau, A., Pautasso, G., Pericoli Ridolfini, V., Piovesan, P., Piron, C., Pisokas, T., Porte, L., Preynas, M., Ramogida, G., Rapson, C., Juul Rasmussen, J., Reich, M., Reimerdes, H., Reux, C., Ricci, P., Rittich, D., Riva, F., Robinson, T., Saarelma, S., Saint-Laurent, F., Sauter, O., Scannell, R., Schlatter, C.h., Schneider, B., Schneider, P., Schrittwieser, R., Sciortino, F., Sertoli, M., Sheikh, U., Sieglin, B., Silva, M., Sinha, J., Sozzi, C., Spolaore, M., Stange, T., Stoltzfus-Dueck, T., Tamain, P., Teplukhina, A., Testa, D., Theiler, C., Thornton, A., TophÃ ̧j, L., Tran, M. Q., Tsironis, C., Tsui, C., Uccello, A., Vartanian, S., Verdoolaege, G., Verhaegh, K., Vermare, L., Vianello, N., Vijvers, W. A. J., Vlahos, L., Vu, N. M. T., Walkden, N., Wauters, T., Weisen, H., Wischmeier, M., Zestanakis, P., Zuin, M., Coda, S, Ahn, J, Albanese, R, Alberti, S, Alessi, E, Allan, S, Anand, H, Anastassiou, G, Andrãbe, Y, Angioni, C, Ariola, M, Bernert, M, Beurskens, M, Bin, W, Blanchard, P, Blanken, T, Boedo, J, Bolzonella, T, Bouquey, F, Braunmã1⁄4ller, F, Bufferand, H, Buratti, P, Calabrã3, G, Camenen, Y, Carnevale, D, Carpanese, F, Causa, F, Cesario, R, Chapman, I, Chellai, O, Choi, D, Cianfarani, C, Ciraolo, G, Citrin, J, Costea, S, Crisanti, F, Cruz, N, Czarnecka, A, Decker, J, De Masi, G, De Tommasi, G, Douai, D, Dunne, M, Duval, B, Eich, T, Elmore, S, Esposito, B, Faitsch, M, Fasoli, A, Fedorczak, N, Felici, F, Fã©vrier, O, Ficker, O, Fietz, S, Fontana, M, Frassinetti, L, Furno, I, Galeani, S, Gallo, A, Galperti, C, Garavaglia, S, Garrido, I, Geiger, B, Giovannozzi, E, Gobbin, M, Goodman, T, Gorini, G, Gospodarczyk, M, Granucci, G, Graves, J, Guirlet, R, Hakola, A, Ham, C, Harrison, J, Hawke, J, Hennequin, P, Hnat, B, Hogeweij, D, Hogge, J, Honorã©, C, Hopf, C, Horã¡ä ek, J, Huang, Z, Igochine, V, Innocente, P, Ionita Schrittwieser, C, Isliker, H, Jacquier, R, Jardin, A, Kamleitner, J, Karpushov, A, Keeling, D, Kirneva, N, Kong, M, Koubiti, M, Kovacic, J, KrÃ¤mer-Flecken, A, Krawczyk, N, Kudlacek, O, Labit, B, Lazzaro, E, Le, H, Lipschultz, B, Llobet, X, Lomanowski, B, Loschiavo, V, Lunt, T, Maget, P, Maljaars, E, Malygin, A, Maraschek, M, Marini, C, Martin, P, Martin, Y, Mastrostefano, S, Maurizio, R, Mavridis, M, Mazon, D, Mcadams, R, Mcdermott, R, Merle, A, Meyer, H, Militello, F, Miron, I, Molina Cabrera, P, Moret, J, Moro, A, Moulton, D, Naulin, V, Nespoli, F, Nielsen, A, Nocente, M, Nouailletas, R, Nowak, S, Odsträ il, T, Papp, G, PapÅTMok, R, Pau, A, Pautasso, G, Pericoli Ridolfini, V, Piovesan, P, Piron, C, Pisokas, T, Porte, L, Preynas, M, Ramogida, G, Rapson, C, Juul Rasmussen, J, Reich, M, Reimerdes, H, Reux, C, Ricci, P, Rittich, D, Riva, F, Robinson, T, Saarelma, S, Saint-Laurent, F, Sauter, O, Scannell, R, Schlatter, C, Schneider, B, Schneider, P, Schrittwieser, R, Sciortino, F, Sertoli, M, Sheikh, U, Sieglin, B, Silva, M, Sinha, J, Sozzi, C, Spolaore, M, Stange, T, Stoltzfus-Dueck, T, Tamain, P, Teplukhina, A, Testa, D, Theiler, C, Thornton, A, Tophã ̧j, L, Tran, M, Tsironis, C, Tsui, C, Uccello, A, Vartanian, S, Verdoolaege, G, Verhaegh, K, Vermare, L, Vianello, N, Vijvers, W, Vlahos, L, Vu, N, Walkden, N, Wauters, T, Weisen, H, Wischmeier, M, Zestanakis, P, Zuin, M, Coda, S., Ahn, J., Albanese, R., Alberti, S., Alessi, E., Allan, S., Anand, H., Anastassiou, G., AndrÃbe, Y., Angioni, C., Ariola, M., Bernert, M., Beurskens, M., Bin, W., Blanchard, P., Blanken, T. C., Boedo, J. A., Bolzonella, T., Bouquey, F., BraunmÃ1⁄4ller, F. H., Bufferand, H., Buratti, P., CalabrÃ3, G., Camenen, Y., Carnevale, D., Carpanese, F., Causa, F., Cesario, R., Chapman, I. T., Chellai, O., Choi, D., Cianfarani, C., Ciraolo, G., Citrin, J., Costea, S., Crisanti, F., Cruz, N., Czarnecka, A., Decker, J., De Masi, G., De Tommasi, G., Douai, D., Dunne, M., Duval, B. P., Eich, T., Elmore, S., Esposito, B., Faitsch, M., Fasoli, A., Fedorczak, N., Felici, F., FÃ©vrier, O., Ficker, O., Fietz, S., Fontana, M., Frassinetti, L., Furno, I., Galeani, S., Gallo, A., Galperti, C., Garavaglia, S., Garrido, I., Geiger, B., Giovannozzi, E., Gobbin, M., Goodman, T. P., Gorini, G., Gospodarczyk, M., Granucci, G., Graves, J. P., Guirlet, R., Hakola, A., Ham, C., Harrison, J., Hawke, J., Hennequin, P., Hnat, B., Hogeweij, D., Hogge, J. -Ph, HonorÃ©, C., Hopf, C., HorÃ¡Äek, J., Huang, Z., Igochine, V., Innocente, P., Ionita Schrittwieser, C., Isliker, H., Jacquier, R., Jardin, A., Kamleitner, J., Karpushov, A., Keeling, D. L., Kirneva, N., Kong, M., Koubiti, M., Kovacic, J., KrÃ¤mer-Flecken, A., Krawczyk, N., Kudlacek, O., Labit, B., Lazzaro, E., Le, H. B., Lipschultz, B., Llobet, X., Lomanowski, B., Loschiavo, V. P., Lunt, T., Maget, P., Maljaars, E., Malygin, A., Maraschek, M., Marini, C., Martin, P., Martin, Y., Mastrostefano, S., Maurizio, R., Mavridis, M., Mazon, D., McAdams, R., McDermott, R., Merle, A., Meyer, H., Militello, F., Miron, I. G., Molina Cabrera, P. A., Moret, J. -.M., Moro, A., Moulton, D., Naulin, V., Nespoli, F., Nielsen, A. H., Nocente, M., Nouailletas, R., Nowak, S., OdstrÄil, T., Papp, G., PapÅTMok, R., Pau, A., Pautasso, G., Pericoli Ridolfini, V., Piovesan, P., Piron, C., Pisokas, T., Porte, L., Preynas, M., Ramogida, G., Rapson, C., Juul Rasmussen, J., Reich, M., Reimerdes, H., Reux, C., Ricci, P., Rittich, D., Riva, F., Robinson, T., Saarelma, S., Saint-Laurent, F., Sauter, O., Scannell, R., Schlatter, C.h., Schneider, B., Schneider, P., Schrittwieser, R., Sciortino, F., Sertoli, M., Sheikh, U., Sieglin, B., Silva, M., Sinha, J., Sozzi, C., Spolaore, M., Stange, T., Stoltzfus-Dueck, T., Tamain, P., Teplukhina, A., Testa, D., Theiler, C., Thornton, A., TophÃ ̧j, L., Tran, M. Q., Tsironis, C., Tsui, C., Uccello, A., Vartanian, S., Verdoolaege, G., Verhaegh, K., Vermare, L., Vianello, N., Vijvers, W. A. J., Vlahos, L., Vu, N. M. T., Walkden, N., Wauters, T., Weisen, H., Wischmeier, M., Zestanakis, P., and Zuin, M.
Abstract: The TCV tokamak is augmenting its unique historical capabilities (strong shaping, strong electron heating) with ion heating, additional electron heating compatible with high densities, and variable divertor geometry, in a multifaceted upgrade program designed to broaden its operational range without sacrificing its fundamental flexibility. The TCV program is rooted in a three-pronged approach aimed at ITER support, explorations towards DEMO, and fundamental research. A 1 MW, tangential neutral beam injector (NBI) was recently installed and promptly extended the TCV parameter range, with record ion temperatures and toroidal rotation velocities and measurable neutral-beam current drive. ITER-relevant scenario development has received particular attention, with strategies aimed at maximizing performance through optimized discharge trajectories to avoid MHD instabilities, such as peeling-ballooning and neoclassical tearing modes. Experiments on exhaust physics have focused particularly on detachment, a necessary step to a DEMO reactor, in a comprehensive set of conventional and advanced divertor concepts. The specific theoretical prediction of an enhanced radiation region between the two X-points in the low-field-side snowflake-minus configuration was experimentally confirmed. Fundamental investigations of the power decay length in the scrape-off layer (SOL) are progressing rapidly, again in widely varying configurations and in both D and He plasmas; in particular, the double decay length in L-mode limited plasmas was found to be replaced by a single length at high SOL resistivity. Experiments on disruption mitigation by massive gas injection and electron-cyclotron resonance heating (ECRH) have begun in earnest, in parallel with studies of runaway electron generation and control, in both stable and disruptive conditions; a quiescent runaway beam carrying the entire electrical current appears to develop in some cases. Developments in plasma control have benefited from pr
Published: 2017

40. An overview of the ITER electron cyclotron H&CD system

Author: Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Plasma Science and Fusion Center, Temkin, Richard J., Temkin, Richard J, Henderson, M., Albajar, F., Alberti, S., Baruah, U., Bigelow, T., Becket, B., Bertizzolo, R., Bonicelli, T., Bruschi, A., Caughman, J., Chavan, R., Cirant, S., Collazos, A., Darbos, C., de Baar, M., Denisov, G., Farina, D., Gandini, F., Gassman, T., Goodman, T. P., Heidinger, R., Hogge, J. P., Jean, O., Kajiwara, K., Kasparek, W., Kasugai, A., Kern, S., Kobayashi, N., Landis, J. D., Moro, A., Nazare, C., Oda, J., Paganakis, I., Platania, P., Plaum, B., Poli, E., Porte, L., Pioscyzyk, B., Ramponi, G., Rao, S. L., Rasmussen, D., Ronden, D., Saibene, G., Sakamoto, K., Sanchez, F., Scherer, T., Shapiro, M., Sozzi, C., Spaeh, P., Straus, D., Sauter, O., Takahashi, K., Tanga, A., Thumm, M., Tran, M. Q., Zohm, H., Zucca, C., Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Plasma Science and Fusion Center, Temkin, Richard J., Temkin, Richard J, Henderson, M., Albajar, F., Alberti, S., Baruah, U., Bigelow, T., Becket, B., Bertizzolo, R., Bonicelli, T., Bruschi, A., Caughman, J., Chavan, R., Cirant, S., Collazos, A., Darbos, C., de Baar, M., Denisov, G., Farina, D., Gandini, F., Gassman, T., Goodman, T. P., Heidinger, R., Hogge, J. P., Jean, O., Kajiwara, K., Kasparek, W., Kasugai, A., Kern, S., Kobayashi, N., Landis, J. D., Moro, A., Nazare, C., Oda, J., Paganakis, I., Platania, P., Plaum, B., Poli, E., Porte, L., Pioscyzyk, B., Ramponi, G., Rao, S. L., Rasmussen, D., Ronden, D., Saibene, G., Sakamoto, K., Sanchez, F., Scherer, T., Shapiro, M., Sozzi, C., Spaeh, P., Straus, D., Sauter, O., Takahashi, K., Tanga, A., Thumm, M., Tran, M. Q., Zohm, H., and Zucca, C.
Abstract: This paper reviews the design and functionality of the 24 MW 170 GHz electron cyclotron heating and current drive system being planned for the ITER Tokamak. The sub-systems (power supplies, gyrotrons, transmission lines and launcher antennas) are described based on present day technologies, while on-going R&D provides component and sub-system testing with the possibility of increasing the reliability of the overall EC system. Modifications to the steering ranges of the launching antennas are under investigation that can improve the functional capabilities of the EC system without increasing cost and relaxing the engineering constraints.
Published: 2017

41. Optical Absorption Produced by Silver Particles in Glass and by Sodium Particles in a Sodium Chloride Matrix

Author: Smithard, M. A., Tran, M. Q., and Bishay, Adli, editor
Published: 1974
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42. Experimental benchmark of the NINJA code for application to the Linac4 H−ion source plasma

Author: Briefi, S, primary, Mattei, S, additional, Rauner, D, additional, Lettry, J, additional, Tran, M Q, additional, and Fantz, U, additional
Published: 2017
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43. CW Experiments With the EU 1-MW, 170-GHz Industrial Prototype Gyrotron for ITER at KIT

Author: Ioannidis, Zisis C., primary, Rzesnicki, Tomasz, additional, Albajar, F., additional, Alberti, S., additional, Avramidis, Konstantinos A., additional, Bin, William, additional, Bonicelli, T., additional, Bruschi, Alessandro, additional, Chelis, Ioannis, additional, Frigot, P.-E., additional, Gantenbein, Gerd, additional, Hermann, V., additional, Hogge, J.-P., additional, Illy, Stefan, additional, Jin, Jianbo, additional, Jelonnek, John, additional, Kasparek, W., additional, Latsas, G., additional, Lechte, C., additional, Legrand, F., additional, Kobarg, Thorsten, additional, Pagonakis, Ioannis Gr., additional, Rozier, Y., additional, Schlatter, C., additional, Schmid, Martin, additional, Tigelis, Ioannis G., additional, Thumm, Manfred, additional, Tran, M. Q., additional, Zein, Andy, additional, and Zisis, A., additional
Published: 2017
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44. Progress of The Experiments With the European 1Mw, 170Ghz Industrial Cw Prototype Gyrotron For Iter

Author: Ioannidis, Z. C., primary, Rzesnicki, T., additional, Avramidis, K., additional, Gantenbein, G., additional, Illy, S., additional, Jin, J., additional, Kobarg, T., additional, Pagonakis, I. Gr., additional, Schmid, M., additional, Thumm, M., additional, Zein, A., additional, Jelonnek, J., additional, Alberti, S., additional, Braunmueller, F., additional, Hogge, J. -P., additional, Schlatter, C., additional, Genoud, J., additional, Tran, M. Q., additional, Kasparek, W., additional, Lechte, C., additional, Chelis, J., additional, Latsas, G. P., additional, Zisis, A., additional, Tigelis, I. G., additional, Bruschi, A., additional, Bin, W., additional, Lontano, M., additional, Hermann, V., additional, Rozier, Y., additional, Legrand, F., additional, Albajar, F., additional, Bonicelli, T., additional, and Frigot, P. -E., additional
Published: 2017
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45. First CW experiments with the EU ITER 1 MW, 170 GHz industrial prototype gyrotron

Author: Ioannidis, Z. C., primary, Rzesnicki, T., additional, Avramidis, K., additional, Gantenbein, G., additional, Illy, S., additional, Jin, J., additional, Kobarg, T., additional, Pagonakis, I. Gr., additional, Schmid, M., additional, Thumm, M., additional, Jelonnek, J., additional, Hermann, V., additional, Rozier, Y., additional, Legrand, F., additional, Alberti, S., additional, Braunmueller, F., additional, Hogge, J.-P., additional, Schlatter, C., additional, Genoud, J., additional, Tran, M. Q., additional, Kasparek, W., additional, Lechte, C., additional, Vomvoridis, J. L., additional, Chelis, J., additional, Latsas, G. P., additional, Zisis, A., additional, Tigelis, I. G., additional, Bruschi, A., additional, Bin, W., additional, Lontano, M., additional, Albajar, F., additional, Bonicelli, T., additional, and Frigot, P.-E., additional
Published: 2017
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46. Investigation of the RF efficiency of inductively coupled hydrogen plasmas at 1 MHz

Author: Rauner, D., primary, Mattei, S., additional, Briefi, S., additional, Fantz, U., additional, Hatayama, A., additional, Lettry, J., additional, Nishida, K., additional, and Tran, M. Q., additional
Published: 2017
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47. Numerical simulation of the RF plasma discharge in the Linac4 H− ion source

Author: Mattei, S., primary, Nishida, K., additional, Onai, M., additional, Lettry, J., additional, Tran, M. Q., additional, and Hatayama, A., additional
Published: 2017
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48. Conceptual design of the beam source for the DEMO Neutral Beam Injectors

Author: Sonato, P, primary, Agostinetti, P, additional, Fantz, U, additional, Franke, T, additional, Furno, I, additional, Simonin, A, additional, and Tran, M Q, additional
Published: 2016
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49. Status of the development of the EU 170 GHz/1 MW/CW gyrotron

Author: Pagonakis, I.G. Albajar, F. Alberti, S. Avramidis, K. Bonicelli, T. Braunmueller, F. Bruschi, A. Chelis, I. Cismondi, F. Gantenbein, G. Hermann, V. Hesch, K. Hogge, J.-P. Jelonnek, J. Jin, J. Illy, S. Ioannidis, Z.C. Kobarg, T. Latsas, G.P. Legrand, F. Lontano, M. Piosczyk, B. Rozier, Y. Rzesnicki, T. Samartsev, A. Schlatter, C. Thumm, M. Tigelis, I.G. Tran, M.-Q. Tran, T.-M. Weggen, J. Vomvoridis, J.L.
Abstract: The progress in the development of the European 170 GHz, 1 MW/CW gyrotron for electron cyclotron heating & current drive (ECH&CD) on ITER is reported. A continuous wave (CW) prototype is being manufactured by Thales Electron Devices (TED), France, while a short-pulse (SP) prototype gyrotron is in parallel under manufacture at Karlsruhe Institute of Technology (KIT), with the purpose of validating the design of the CW industrial prototype components. The fabrication of most of the sub-assemblies of the SP prototype has been completed. In a first step, an existing magnetron injection gun (MIG) available at KIT was used. Despite this non-ideal configuration, the experiments provided a validation of the design, substantiated by an excellent agreement with numerical simulations. The tube, operated without a depressed collector, is able to produce more than 1 MW of output power with efficiency in excess of 30%, as expected, and compatible with the ITER requirements. © 2015 Karlsruhe Institute of Technology.
Published: 2015

50. Properties of diffraction gratings used as output couplers in a quasi-optical gyrotron.

Author: Tran, M. Q., Cao, H., Hogge, J. Ph., Kasparek, W., Tran, T. M., and Paris, P. J.
Subjects: *DIFFRACTION gratings, *FABRY-Perot interferometers, *WAVEGUIDES, *RESONATORS
Abstract: Focuses on a study which presented the design of a diffraction grating used as an output coupler for a Fabry-Perot resonator. Design of the grating; Parameters of the different resonators; Cold test results.
Published: 1993
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