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6. Microwave Setup of a Megawatt Power Level for the ECR Plasma Heating and Current Drive System of the T-15MD Tokamak

Author

Denisov, G. G., Malygin, V. I., Tsvetkov, A. I., Eremeev, A. G., Shmelev, M.Yu., Belousov, V. I., Baber, I. S., Karpov, N. I., Leonov, I. I., Kopelovich, E. A., Troitskiy, M. M., Kuznetsov, M.V., Varygin, I. A., Zhurin, K. A., Movshevich, B. Z., Chirkov, A. V., Glyavin, M. Yu., Tai, E. M., Soluyanova, E.A., Bakulin, M. I., Roy, I. N., Anashkin, I. O., Khvostenko, P. P., and Kirneva, N. A.

Published
2020
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9. 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

10. 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. 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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

11. ECRH for JET: A feasibility study

Author

Lennholm, Morten, Giruzzi, Gerardo, Parkin, Alan, Bouquey, Francis, Braune, Harald, Bruschi, Alex, de la Luna, Elena, Denisov, Gregory, Edlington, Trevor, Farina, Daniela, Farthing, Jonathan, Figini, Lorenzo, Garavaglia, Saul, Garcia, Jeronimo, Gerbaud, Thomas, Granucci, Gustavo, Henderson, Mark, Horton, Lorne, Kasparek, Walter, Khilar, Pankaj, Jennison, Mike, Kirneva, N., Kislov, Dimitry, Kuyanov, Aleksander, Litaudon, Xavier, Litvak, Alexander G., Moro, Alessandro, Nowak, Silvana, Parail, Vasili, Plaum, Burkhard, Rimini, Fernanda, Saibene, Gabriella, Sips, Adrianus, Sozzi, Carlo, Späh, Peter, Trukhina, Elena, Vaccaro, Alessandro, and Vdovin, Victor

Published
2011
Full Text
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12. 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

13. 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

14. Investigation of the possibility of exceeding the Greenwald density limit during ECRH in T-10

Author

Alikaev, V. V., Borshchegovskii, A. A., Volkov, V. V., Dremin, M. M., Esipchuk, Yu. V., Kakurin, A. M., Kirneva, N. A., Kislov, A. Ya., Kislov, D. A., Klimanov, I. V., Kochin, V. A., Krupin, V. A., Krylov, S. V., Myalton, T. B., Novikov, A. Yu., Notkin, G. E., Pavlov, Yu. D., Piterskii, V. V., Poznyak, V. I., Roi, I. N., Savrukhin, P. V., Stepanenko, M. M., Sushkov, A. V., Trukhin, V. M., Trukhina, E. V., and Chistyakov, V. V.

Published
2000
Full Text
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15. Investigation of the H-mode during ECRH in the T-10 tokamak

Author

Alikaev, V. V., Borshchegovskii, A. A., Vershkov, V. A., Volkov, V. V., Gorshkov, A. V., Gott, Yu. V., Grashin, S. A., Dremin, M. M., Eliseev, L. G., Esipchuk, Yu. V., Zhuravlev, V. A., Kakurin, A. M., Kirnev, G. S., Kirneva, N. A., Kislov, A. Ya., Kislov, D. A., Klimanov, I. V., Kochin, V. A., Krupin, V. A., Krylov, S. V., Melnikov, A. V., Myalton, T. B., Novikov, A. Yu., Notkin, G. E., Pavlov, Yu. D., Piterskii, V. V., Poznyak, V. I., Roi, I. N., Savrukhin, P. V., Sannikov, V. V., Soldatov, S. V., Stepanenko, M. M., Sushkov, A. V., Tarasyan, K. N., Trukhin, V. M., Trukhina, E. V., Khimchenko, L. N., Chistyakov, V. V., and Shelukhin, D. A.

Published
2000
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16. Reversed-shear experiments in the T-10 tokamak

Author

Alikaev, V. V., Borshchegovskii, A. A., Dremin, M. M., Esipchuk, Yu. V., Kalupin, D. V., Kirneva, N. A., Kislov, A. Ya., Kislov, D. A., Martynov, A. A., Myalton, T. B., Notkin, G. E., Poznyak, V. I., Pavlov, Yu. D., Roi, I. N., Stepanenko, M. M., Sushkov, A. V., Trukhin, V. M., and Chistyakov, V. V.

Published
2000
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17. 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, Krämer-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., Février, 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, 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., 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., Tophà ̧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, Krämer-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., Février, 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, 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., 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., Tophà ̧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

18. 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

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. 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., Calabró, G., Calacci, L., Camenen, Y., Carnevale, D., Carpanese, F., Carr, M., Carraro, L., Casolari, A., Causa, F., Čeřovský, J., Chellaï, 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., Embréus, O., Esposito, B., Faitsch, M., Farnik, M., Fasoli, A., Fedorczak, N., Felici, F., Feng, S., Feng, X., Ferró, G., Février, O., Ficker, O., Fil, A., Fontana, M., Frassinetti, L., Furno, I., Gahle, D.S., Galassi, D., Gałazka, 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., Havličková, E., Hawke, J., Henderson, S., Hennequin, P., Hesslow, L., Hogeweij, D., Hogge, J.Ph., Hopf, C., Hoppe, M., Horáček, 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., Mlynář, 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., Pütterich, 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, 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., Tomaž, 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. 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., Calabró, G., Calacci, L., Camenen, Y., Carnevale, D., Carpanese, F., Carr, M., Carraro, L., Casolari, A., Causa, F., Čeřovský, J., Chellaï, 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., Embréus, O., Esposito, B., Faitsch, M., Farnik, M., Fasoli, A., Fedorczak, N., Felici, F., Feng, S., Feng, X., Ferró, G., Février, O., Ficker, O., Fil, A., Fontana, M., Frassinetti, L., Furno, I., Gahle, D.S., Galassi, D., Gałazka, 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., Havličková, E., Hawke, J., Henderson, S., Hennequin, P., Hesslow, L., Hogeweij, D., Hogge, J.Ph., Hopf, C., Hoppe, M., Horáček, 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., Mlynář, 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., Pütterich, 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, 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., Tomaž, 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 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

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. Optimization of ECR-breakdown and plasma discharge formation on T-10 tokamak, using X-mode second harmonic of ECR.

Author

Roy I., Petrov D., Pavlov Y., Maltsev S., Krupin V., Kislov A., Kirneva N., Il’in V., Dremin M., Borshchegovskiy A., Shelukhin D., and Sokolov M.

Subjects
Physics, QC1-999
Abstract

In order to obtain breakdown and suitable plasma parameters for low-voltage OH start-up, high level of EC-power was injected into T-10 tokamak. Input HF-power was varied in the range of 0.15–1.0 MW. Two HF-launcher systems with different output beams allowed to inject EC-waves with maximum power density 0.25 MW/cm2 and 0.01 MW/cm2. Dependence of breakdown time delay on HF-power was obtained. It was shown, that optimal plasma parameters were achieved in presence of plasma equilibrium currents I=3 kA (input HF-power=1.0 MW). Electron temperature Te=100÷150 eV and electron density ne=5·1012 cm−3 was measured in these discharges. These parameters remained constant during full HF-pulse-length.

Published
2012
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22. Physics research on the TCV tokamak facility: from conventional to alternative scenarios and beyond

Author

Coda, S., primary, Agostini, M., additional, Albanese, R., additional, Alberti, S., additional, Alessi, E., additional, Allan, S., additional, Allcock, J., additional, Ambrosino, R., additional, Anand, H., additional, Andrèbe, Y., additional, Arnichand, H., additional, Auriemma, F., additional, Ayllon-Guerola, J.M., additional, Bagnato, F., additional, Ball, J., additional, Baquero-Ruiz, M., additional, Beletskii, A.A., additional, Bernert, M., additional, Bin, W., additional, Blanchard, P., additional, Blanken, T.C., additional, Boedo, J.A., additional, Bogar, O., additional, Bolzonella, T., additional, Bombarda, F., additional, Bonanomi, N., additional, Bouquey, F., additional, Bowman, C., additional, Brida, D., additional, Bucalossi, J., additional, Buermans, J., additional, Bufferand, H., additional, Buratti, P., additional, Calabró, G., additional, Calacci, L., additional, Camenen, Y., additional, Carnevale, D., additional, Carpanese, F., additional, Carr, M., additional, Carraro, L., additional, Casolari, A., additional, Causa, F., additional, Čeřovský, J., additional, Chellaï, O., additional, Chmielewski, P., additional, Choi, D., additional, Christen, N., additional, Ciraolo, G., additional, Cordaro, L., additional, Costea, S., additional, Cruz, N., additional, Czarnecka, A., additional, Dal Molin, A., additional, David, P., additional, Decker, J., additional, De Oliveira, H., additional, Douai, D., additional, Dreval, M.B., additional, Dudson, B., additional, Dunne, M., additional, Duval, B.P., additional, Eich, T., additional, Elmore, S., additional, Embréus, O., additional, Esposito, B., additional, Faitsch, M., additional, Farník, M., additional, Fasoli, A., additional, Fedorczak, N., additional, Felici, F., additional, Feng, S., additional, Feng, X., additional, Ferró, G., additional, Février, O., additional, Ficker, O., additional, Fil, A., additional, Fontana, M., additional, Frassinetti, L., additional, Furno, I., additional, Gahle, D.S., additional, Galassi, D., additional, Gałązka, K., additional, Gallo, A., additional, Galperti, C., additional, Garavaglia, S., additional, Garcia, J., additional, Garcia-Muñoz, M., additional, Garrido, A.J., additional, Garrido, I., additional, Gath, J., additional, Geiger, B., additional, Giruzzi, G., additional, Gobbin, M., additional, Goodman, T.P., additional, Gorini, G., additional, Gospodarczyk, M., additional, Granucci, G., additional, Graves, J.P., additional, Gruca, M., additional, Gyergyek, T., additional, Hakola, A., additional, Happel, T., additional, Harrer, G.F., additional, Harrison, J., additional, Havlíčková, E., additional, Hawke, J., additional, Henderson, S., additional, Hennequin, P., additional, Hesslow, L., additional, Hogeweij, D., additional, Hogge, J.-Ph., additional, Hopf, C., additional, Hoppe, M., additional, Horáček, J., additional, Huang, Z., additional, Hubbard, A., additional, Iantchenko, A., additional, Igochine, V., additional, Innocente, P., additional, Ionita Schrittwieser, C., additional, Isliker, H., additional, Jacquier, R., additional, Jardin, A., additional, Kappatou, A., additional, Karpushov, A., additional, Kazantzidis, P.-V., additional, Keeling, D., additional, Kirneva, N., additional, Komm, M., additional, Kong, M., additional, Kovacic, J., additional, Krawczyk, N., additional, Kudlacek, O., additional, Kurki-Suonio, T., additional, Kwiatkowski, R., additional, Labit, B., additional, Lazzaro, E., additional, Linehan, B., additional, Lipschultz, B., additional, Llobet, X., additional, Lombroni, R., additional, Loschiavo, V.P., additional, Lunt, T., additional, Macusova, E., additional, Madsen, J., additional, Maljaars, E., additional, Mantica, P., additional, Maraschek, M., additional, Marchetto, C., additional, Marco, A., additional, Mariani, A., additional, Marini, C., additional, Martin, Y., additional, Matos, F., additional, Maurizio, R., additional, Mavkov, B., additional, Mazon, D., additional, McCarthy, P., additional, McDermott, R., additional, Menkovski, V., additional, Merle, A., additional, Meyer, H., additional, Micheletti, D., additional, Militello, F., additional, Mitosinkova, K., additional, Mlynář, J., additional, Moiseenko, V., additional, Molina Cabrera, P.A., additional, Morales, J., additional, Moret, J.-M., additional, Moro, A., additional, Mumgaard, R.T., additional, Naulin, V., additional, Nem, R.D., additional, Nespoli, F., additional, Nielsen, A.H., additional, Nielsen, S.K., additional, Nocente, M., additional, Nowak, S., additional, Offeddu, N., additional, Orsitto, F.P., additional, Paccagnella, R., additional, Palha, A., additional, Papp, G., additional, Pau, A., additional, Pavlichenko, R.O., additional, Perek, A., additional, Pericoli Ridolfini, V., additional, Pesamosca, F., additional, Piergotti, V., additional, Pigatto, L., additional, Piovesan, P., additional, Piron, C., additional, Plyusnin, V., additional, Poli, E., additional, Porte, L., additional, Pucella, G., additional, Puiatti, M.E., additional, Pütterich, T., additional, Rabinski, M., additional, Juul Rasmussen, J., additional, Ravensbergen, T., additional, Reich, M., additional, Reimerdes, H., additional, Reimold, F., additional, Reux, C., additional, Ricci, D., additional, Ricci, P., additional, Rispoli, N., additional, Rosato, J., additional, Saarelma, S., additional, Salewski, M., additional, Salmi, A., additional, Sauter, O., additional, Scheffer, M., additional, Schlatter, Ch., additional, Schneider, B.S., additional, Schrittwieser, R., additional, Sharapov, S., additional, Sheeba, R.R., additional, Sheikh, U., additional, Shousha, R., additional, Silva, M., additional, Sinha, J., additional, Sozzi, C., additional, Spolaore, M., additional, Stipani, L., additional, Strand, P., additional, Tala, T., additional, Tema Biwole, A.S., additional, Teplukhina, A.A., additional, Testa, D., additional, Theiler, C., additional, Thornton, A., additional, Tomaž, G., additional, Tomes, M., additional, Tran, M.Q., additional, Tsironis, C., additional, Tsui, C.K., additional, Urban, J., additional, Valisa, M., additional, Vallar, M., additional, Van Vugt, D., additional, Vartanian, S., additional, Vasilovici, O., additional, Verhaegh, K., additional, Vermare, L., additional, Vianello, N., additional, Viezzer, E., additional, Vijvers, W.A.J., additional, Villone, F., additional, Voitsekhovitch, I., additional, Vu, N.M.T., additional, Walkden, N., additional, Wauters, T., additional, Weiland, M., additional, Weisen, H., additional, Wensing, M., additional, Wiesenberger, M., additional, Wilkie, G., additional, Wischmeier, M., additional, Wu, K., additional, Yoshida, M., additional, Zagorski, R., additional, Zanca, P., additional, Zebrowski, J., additional, Zisis, A., additional, and Zuin, M., additional

Published
2019
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23. Overview of the JET results with the ITER-like wall

Author

Romanelli, F., Abel, I., Afanesyev, V., Aftanas, M., Agarici, G., Aggarwal, K. M., Aho-Mantila, L., Ahonen, E., Aints, M., Airila, M., Akers, R., Alarcon, Th., Albanese, R., Alexeev, A., Alfier, A., Allan, P., Almaviva, S., Alonso, A., Alper, B., Altmann, H., Alves, D., Ambrosino, G., Amosov, V., Andersson, F., Andersson Sundén, E., Andreev, V., Andrew, Y., Angelone, M., Anghel, M., Anghel, A., Angioni, C., Apruzzese, G., Arcis, N., Arena, P., Argouarch, A., Ariola, M., Armitano, A., Armstrong, R., Arnoux, G., Arshad, S., Artaserse, G., Artaud, J. F., Ash, A., Asp, E., Asunta, O., Atanasiu, C. V., Atkins, G., Avotina, L., Axton, M. D., Ayres, C., Baciero, A., Bailescu, V., Baiocchi, B., Baker, R. A., Balboa, I., Balden, M., Balorin, C., Balshaw, N., Banks, J. W., Baranov, Y. F., Barbier, D., Barlow, I. L., Barnard, M. A., Barnsley, R., Barrena, L., Barrera, L., Baruzzo, M., Basiuk, V., Bateman, G., Batistoni, P., Baumgarten, N., Baylor, L., Bazylev, B., Beaumont, P. S., Beausang, K., Bã©coulet, M., Bekris, N., Beldishevski, M., Bell, A. C., Belli, F., Bellinger, M., Bellizio, T., Belo, P. S. A., Belonohy, É., Bennett, P. E., Benterman, N. A., Berger-By, G., Bergsã¥ker, H., Berk, H., Bernardo, J., Bernert, M., Bertrand, B., Beurskens, M. N. A., Bieg, B., Bienkowska, B., Biewer, T. M., Bigi, M., Bã­lkovã¡, P., Bin, W., Bird, J., Bizarro, J., Bjã¶rkas, C., Blackman, T. R., Blanchard, P., Blanco, E., Blum, J., Bobkov, V., Boboc, A., Boilson, D., Bolshakova, I., Bolzonella, T., Boncagni, L., Bonheure, G., Bonnin, X., Borba, D., Borthwick, A., Botrugno, A., Boulbe, C., Bouquey, F., Bourdelle, C., Bovert, K. v., Bowden, M., Boyce, T., Boyer, H. J., Bozhenkov, A., Brade, R. J., Bradshaw, J. M. A., Braet, J., Braic, V., Braithwaite, G. C., Brault, C., Breizman, B., Bremond, S., Brennan, P. D., Brett, A., Breue, J., Brezinsek, S., Bright, M. D. J., Briscoe, F., Brix, M., Brombin, M., Brown, B. C., Brown, D. P. D., Brzozowski, J., Bucalossi, J., Buckley, M. A., Budd, T., Budny, R. V., Bunting, P., Buratti, P., Burcea, G., Burckhart, A., Butcher, P. R., Buttery, R. J., Cahyna, P., Calabrã², G., Callaghan, C. P., Caminade, J. P., Camp, P. G., Campling, D. C., Caniello, R., Canik, J., Cannas, B., Capel, A. J., Carannante, G., Card, P. J., Cardinali, A., Carlstrom, T., Carman, P., Carralero, D., Carraro, L., Carter, T., Carvalho, B. B., Carvalho, I., Carvalho, P., Casati, A., Castaldo, C., Caughman, J., Cavazzana, R., Cavinato, M., Cecconello, M., Cecil, E., Cecil, F. E., Cenedese, A., Centioli, C., Cesario, R., Challis, C. D., Chandler, M., Chang, C., Chankin, A., Chapman, I. T., Chektybayev, B., Chernyshova, M., Child, D. J., Chiru, P., Chitarin, G., Chugonov, I., Chugunov, I., Ciric, D., Clairet, F., Clarke, R. H., Clay, R., Clever, M., Coad, J. P., Coates, P. A., Cocilovo, V., Coda, S., Coelho, R., Coenen, J., Coffey, I., Colas, L., Cole, M., Collins, S., Combs, S., Compan, J., Conboy, J. E., Conroy, S., Cook, N., Cook, S. P., Coombs, D., Cooper, S. R., Corre, Y., Corrigan, G., Cortes, S., Coster, D., Counsell, G. F., Courtois, X., Cox, M., Craciunescu, T., Cramp, S., Crisanti, F., Croci, G., Croft, O., Crombe, K., Crombã©, K., Crowley, B. J., Cruz, N., Cseh, G., Cupido, L., Curuia, M., Cusack, R. A., Czarnecka, A., Czarski, T., Dalley, S., Daly, E. T., Dalziel, A., Daniel, R., Darrow, D., David, O., Davies, N., Davies, W., Davis, J. J., Day, I. E., Day, C., De Angelis, R., De Arcas, G., De Baar, M. R., De La Cal, E., De La Luna, E., De Pablos, J. L., De Tommasi, G., De Vries, P. C., De-Angelis, R., Degli Agostini, F., Delabie, E., Del-Castillo-Negrete, D., Delpech, L., Denisov, G., Denyer, A. J., Denyer, R. F., Devaux, S., Devynck, P., Di Matteo, L., Di Pace, L., Dirken, P. J., Dittmar, T., Dodt, D., Dnestrovskiy, A., Doerner, R., Doldatov, S., Dominiczak, K., Dooley, P., Dorling, S. E., Douai, D., Down, A. P., Doyle, P. T., Drake, J. R., Dreischuh, T., Drozdov, V., Dumortier, P., Dunai, D., Duran, I., Durodiã©, F., Dutta, P., Dux, R., Dylst, K., Eaton, R., Edlington, T., Edwards, A. M., Edwards, D. T., Edwards, P. K., Eich, Th., Ekedahl, A., Elevant, T., Ellingboe, B., Elsmore, C. G., Emmoth, B., Erdei, G., Ericsson, G., Eriksson, L. G., Eriksson, A., Esposito, B., Esser, H. G., Estrada, T., Evangelidis, E. A., Evans, G. E., Ewart, G. D., Ewers, D. T., Falchetto, G., Falie, D., Fanthome, J. G. A., Farthing, J. W., Fasoli, A., Faugeras, B., Fedorczak, N., Felton, R. C., Fenzi, C., Fernades, A., Fernandes, H., Ferreira, J. A., Ferreira, J., Ferron, J., Fessey, J. A., Figini, L., Figueiredo, J., Figueiredo, A., Finburg, P., Finken, K. H., Fischer, U., Fitzgerald, N., Flanagan, J., Fleming, C., Forbes, A. D., Ford, O., Formisano, A., Fraboulet, D., Francis, R. J., Frassinetti, L., Fresa, R., Friconneau, J. P., Frigione, D., Fullard, K., Fundamenski, W., Furno Palumbo, M., Gã¡l, K., Gao, X., Garavaglia, S., Garbet, X., Garcia, J., Garcia Munoz, M., Gardner, W., Garibaldi, P., Garnier, D., Garzotti, L., Gatu Johnson, M., Gaudio, P., Gauthier, E., Gaze, J. W., Gear, D. F., Gedney, J., Gee, S. J., Gelfusa, M., Genangeli, E., Gerasimov, S., Geraud, A., Gerbaud, T., Gherendi, M., Ghirelli, N., Giacalone, J. C., Giacomelli, L., Gibson, C. S., Gil, C., Gilligan, S. J., Gimblett, C. G., Gin, D., Giovannozzi, E., Giroud, C., Giruzzi, G., Godwin, J., Goff, J. K., Gohil, P., Gã³jska, A., Goloborod'Ko, V., Gonã§alves, B., Goniche, M., Gonzales, S., González De Vicente, S. M., Goodyear, A., Gorelenkov, N., Gorini, G., Goulding, R., Graham, B., Graham, D., Graham, M. E., Graves, J., Green, N. R., Greuner, H., Grigore, E., Griph, F. S., Grisolia, C., Gros, G., Groth, M., Grã¼nhagen, S., Gryaznevich, M. P., Guirlet, R., Gunn, J., Gupta, A., Guzdar, P., Hackett, L. J., Hacquin, S., Haist, B., Hakola, A., Halitovs, M., Hall, S. J., Hallworth Cook, S. P., Hamilton, D. T., Han, H., Handley, R. C., Harding, S., Harling, J. D. W., Harting, D., Harvey, M. J., Haupt, T. D. V., Hawkes, N. C., Hawryluk, R., Hay, J. H., Hayashi, N., Haydon, P. W., Hayward, I. R., Hazel, S., Heesterman, P. J. L., Heidbrink, W., Heinola, K., Hellesen, C., Hellsten, T., Hemming, O. N., Hender, T. C., Henderson, M., Hennion, V., Hidalgo, C., Higashijima, S., Hill, J. W., Hill, M., Hill, K., Hillairet, J., Hillis, D., Hirai, T., Hitchin, M., Hobirk, J., Hogan, C., Hogben, C. H. A., Hogeweij, G. M. D., Hollingham, I. C., Holyaka, R., Homfray, D. A., Honeyands, G., Hong, S. H., Hong, J. H., Horã¡cek, J., Horn, B. A., Horton, A. R., Horton, L. D., Hotchin, S. P., Hough, M. R., Houlberg, W., Howell, D. F., Huber, A., Huddleston, T. M., Hudson, Z., Hughes, M., Hã¼hnerbein, M., Hume, C. C., Hunt, A. J., Hunter, C. L., Hutchinson, T. S., Huygen, S., Huysmans, G., Ide, S., Illescas, C., Imbeaux, F., Ivanova, D., Ivanova-Stanik, I., Ivings, E., Jachmich, S., Jackson, G., Jacquet, P., Jakubowska, K., James, P. V., Janky, F., Jã¤rvinen, A., Jednorog, S., Jenkins, I., Jennison, M. A. C., Jeskins, C., Jin Kwon, O., Joffrin, E., Johnson, M. F., Johnson, R., Johnson, T., Jolovic, D., Jonauskas, V., Jones, E. M., Jones, G., Jones, H. D., Jones, T. T. C., Jouvet, M., Jupã©n, C., Kachtchouk, I., Kaczmarczyk, J., Kallenbach, A., Kã¤llne, J., Kalupin, D., Kã¡lvin, S., Kamelander, G., Kamendje, R., Kamiya, K., Kappatou, A., Kasparek, W., Kasprowicz, G., Katramados, I., Kaveney, G., Kaye, A. S., Kear, M. J., Keeling, D. L., Kelliher, D., Kempenaars, M., Khilar, P., Khilkevich, E., Kidd, N. G., Kiisk, M., Kim, K. M., Kim, H., King, R. F., Kinna, D. 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Subjects
Nuclear and High Energy Physics, Materials science, REGIME, Nuclear engineering, chemistry.chemical_element, Condensed Matter Physic, Effective radiated power, Tungsten, Condensed Matter Physics, Pedestal, PLASMA-FACING COMPONENTS, TOKAMAK PLASMAS, Jet (fluid), TUNGSTEN, Divertor, perfomance, Plasma, PERFORMANCE, Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin), chemistry, Beta (plasma physics), DIVERTOR, Beryllium, Atomic physics
Abstract

Following the completion in May 2011 of the shutdown for the installation of the beryllium wall and the tungsten divertor, the first set of JET campaigns have addressed the investigation of the retention properties and the development of operational scenarios with the new plasma-facing materials. The large reduction in the carbon content (more than a factor ten) led to a much lower Zeff (1.2-1.4) during L- and H-mode plasmas, and radiation during the burn-through phase of the plasma initiation with the consequence that breakdown failures are almost absent. Gas balance experiments have shown that the fuel retention rate with the new wall is substantially reduced with respect to the C wall. The re-establishment of the baseline H-mode and hybrid scenarios compatible with the new wall has required an optimization of the control of metallic impurity sources and heat loads. Stable type-I ELMy H-mode regimes with H98,y2 close to 1 and βN ∼ 1.6 have been achieved using gas injection. ELM frequency is a key factor for the control of the metallic impurity accumulation. Pedestal temperatures tend to be lower with the new wall, leading to reduced confinement, but nitrogen seeding restores high pedestal temperatures and confinement. Compared with the carbon wall, major disruptions with the new wall show a lower radiated power and a slower current quench. The higher heat loads on Be wall plasma-facing components due to lower radiation made the routine use of massive gas injection for disruption mitigation essential. © 2013 IAEA, Vienna.

Published
2013

24. 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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25. Plasma confinement properties at high density in TCV and T-10 tokamaks

Author

Kirneva, N., Blanchard, Patrick, Coda, Stefano, Kakurin, A.M., Karpushov, Alexander, Kliuchnikov, L.A., Krupin, V.A., Krylov, S.V., Kudlacek, O., Labit, Benoît, Maltsev, S.G., Moret, Jean-Marc, Myalton, T.B., Pavlov, Yu.D., Ryjakov, D.V., Sauter, Olivier, Sarichev, D.V., Sergeev, D.S., Solomatin, R.Yu., Testa, Duccio, Trukhin, M., Trukhina, E.V., Vershkov, V.A., TCV Team, and T-10 Team

Published
2016

26. Improvement of plasma energy confinement in tokamak under radiative cooling of the edge plasma

Author

Razumova, K. A., primary, Borschegovskiy, A. A., additional, Gorbunov, E. P., additional, Dremin, M. M., additional, Kasyanova, N. V., additional, Kirneva, N. A., additional, Kislov, A. Ya., additional, Klyuchnikov, L. A., additional, Krupin, V. A., additional, Krylov, S. V., additional, Lysenko, S. E., additional, Melnikov, A. V., additional, Myalton, T. B., additional, Nemets, A. R., additional, Notkin, G. E., additional, Nurgaliev, M. R., additional, Sarychev, D. V., additional, Sushkov, A. V., additional, Chistyakov, V. V., additional, Ongena, J., additional, and Messiaen, A., additional

Published
2017
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27. Overview of the TCV tokamak program: scientific progress and facility upgrades

Author

Coda, S., primary, Ahn, J., additional, Albanese, R., additional, Alberti, S., additional, Alessi, E., additional, Allan, S., additional, Anand, H., additional, Anastassiou, G., additional, Andrèbe, Y., additional, Angioni, C., additional, Ariola, M., additional, Bernert, M., additional, Beurskens, M., additional, Bin, W., additional, Blanchard, P., additional, Blanken, T.C., additional, Boedo, J.A., additional, Bolzonella, T., additional, Bouquey, F., additional, Braunmüller, F.H., additional, Bufferand, H., additional, Buratti, P., additional, Calabró, G., additional, Camenen, Y., additional, Carnevale, D., additional, Carpanese, F., additional, Causa, F., additional, Cesario, R., additional, Chapman, I.T., additional, Chellai, O., additional, Choi, D., additional, Cianfarani, C., additional, Ciraolo, G., additional, Citrin, J., additional, Costea, S., additional, Crisanti, F., additional, Cruz, N., additional, Czarnecka, A., additional, Decker, J., additional, De Masi, G., additional, De Tommasi, G., additional, Douai, D., additional, Dunne, M., additional, Duval, B.P., additional, Eich, T., additional, Elmore, S., additional, Esposito, B., additional, Faitsch, M., additional, Fasoli, A., additional, Fedorczak, N., additional, Felici, F., additional, Février, O., additional, Ficker, O., additional, Fietz, S., additional, Fontana, M., additional, Frassinetti, L., additional, Furno, I., additional, Galeani, S., additional, Gallo, A., additional, Galperti, C., additional, Garavaglia, S., additional, Garrido, I., additional, Geiger, B., additional, Giovannozzi, E., additional, Gobbin, M., additional, Goodman, T.P., additional, Gorini, G., additional, Gospodarczyk, M., additional, Granucci, G., additional, Graves, J.P., additional, Guirlet, R., additional, Hakola, A., additional, Ham, C., additional, Harrison, J., additional, Hawke, J., additional, Hennequin, P., additional, Hnat, B., additional, Hogeweij, D., additional, Hogge, J.-Ph., additional, Honoré, C., additional, Hopf, C., additional, Horáček, J., additional, Huang, Z., additional, Igochine, V., additional, Innocente, P., additional, Ionita Schrittwieser, C., additional, Isliker, H., additional, Jacquier, R., additional, Jardin, A., additional, Kamleitner, J., additional, Karpushov, A., additional, Keeling, D.L., additional, Kirneva, N., additional, Kong, M., additional, Koubiti, M., additional, Kovacic, J., additional, Krämer-Flecken, A., additional, Krawczyk, N., additional, Kudlacek, O., additional, Labit, B., additional, Lazzaro, E., additional, Le, H.B., additional, Lipschultz, B., additional, Llobet, X., additional, Lomanowski, B., additional, Loschiavo, V.P., additional, Lunt, T., additional, Maget, P., additional, Maljaars, E., additional, Malygin, A., additional, Maraschek, M., additional, Marini, C., additional, Martin, P., additional, Martin, Y., additional, Mastrostefano, S., additional, Maurizio, R., additional, Mavridis, M., additional, Mazon, D., additional, McAdams, R., additional, McDermott, R., additional, Merle, A., additional, Meyer, H., additional, Militello, F., additional, Miron, I.G., additional, Molina Cabrera, P.A., additional, Moret, J.-M., additional, Moro, A., additional, Moulton, D., additional, Naulin, V., additional, Nespoli, F., additional, Nielsen, A.H., additional, Nocente, M., additional, Nouailletas, R., additional, Nowak, S., additional, Odstrčil, T., additional, Papp, G., additional, Papřok, R., additional, Pau, A., additional, Pautasso, G., additional, Pericoli Ridolfini, V., additional, Piovesan, P., additional, Piron, C., additional, Pisokas, T., additional, Porte, L., additional, Preynas, M., additional, Ramogida, G., additional, Rapson, C., additional, Juul Rasmussen, J., additional, Reich, M., additional, Reimerdes, H., additional, Reux, C., additional, Ricci, P., additional, Rittich, D., additional, Riva, F., additional, Robinson, T., additional, Saarelma, S., additional, Saint-Laurent, F., additional, Sauter, O., additional, Scannell, R., additional, Schlatter, Ch., additional, Schneider, B., additional, Schneider, P., additional, Schrittwieser, R., additional, Sciortino, F., additional, Sertoli, M., additional, Sheikh, U., additional, Sieglin, B., additional, Silva, M., additional, Sinha, J., additional, Sozzi, C., additional, Spolaore, M., additional, Stange, T., additional, Stoltzfus-Dueck, T., additional, Tamain, P., additional, Teplukhina, A., additional, Testa, D., additional, Theiler, C., additional, Thornton, A., additional, Tophøj, L., additional, Tran, M.Q., additional, Tsironis, C., additional, Tsui, C., additional, Uccello, A., additional, Vartanian, S., additional, Verdoolaege, G., additional, Verhaegh, K., additional, Vermare, L., additional, Vianello, N., additional, Vijvers, W.A.J., additional, Vlahos, L., additional, Vu, N.M.T., additional, Walkden, N., additional, Wauters, T., additional, Weisen, H., additional, Wischmeier, M., additional, Zestanakis, P., additional, and Zuin, M., additional

Published
2017
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28. The science program of the TCV tokamak: exploring fusion reactor and power plant concepts

Author

Coda, S., Albanese, R., Alberti, S., Ambrosino, R., Anand, H., Andrebe, Y., Ariola, M., Barton, J. E., Behn, R., Blanchard, P., Boedo, J. A., Bortolon, A., Braunmüller, F. H., Brémond, S., Brunner, S., Camenen, Y., Canal, G. P., Cooper, W. A., Cruz, N., De Baar, M., Decker, J., De Meijere, C. A., Duval, B. P., Fasoli, A., Federspiel, L., Felici, F., Fontana, M., Furno, I., Galperti, C., Garrido, I., Genoud, J., Goodman, T. P., Graves, J. P., Hennequin, P., Hogge, J. -Ph., Hommen, G., Huang, Z., Joye, B., Kamleitner, J., Karpushov, A., Kim, D., Kirneva, N., Krämer-Flecken, A., Labit, B., Lazzaro, E., Le, H. B., Lefevre, L., Li, F., Lipschultz, B., Lister, J. B., Llobet, X., Lunt, T., Malygin, A., Maljaars, E., Marini, C., Martin, Y., Mattei, M., Merle, A., Molina Cabrera, P. A., Moreau, D., Moret, J. -M., Morgan, T., Mustafin, N. A., Nespoli, F., Nouailletas, R., Nowak, S., Peysson, Y., Pironti, A., Pochelon, A., Porte, L., Reimerdes, H., Sauter, O., Schlatter, Ch., Schuster, E., Silva, M., Sinha, J., Stoltzfus-Dueck, T., Tál, B., Teplukhina, A. A., Testa, D., Theiler, C., Tonetti, G., Tran, M. Q., Tsui, C., Vermare, L., Vernay, T., Vijvers, W. A. J., Vu, N. M. T., Vuille, V., Weisen, H., Wenninger, R., Witrant, E., Laboratoire de Physique des Plasmas (LPP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Coda, S., Albanese, R., Alberti, S., Ambrosino, R., Anand, H., Andrebe, Y., Ariola, M., Barton, J. E., Behn, R., Blanchard, P., Boedo, J. A., Bortolon, A., Braunmüller, F. H., Brémond, S., Brunner, S., Camenen, Y., Canal, G. P., Cooper, W. A., Cruz, N., De Baar, M., Decker, J., De Meijere, C. A., Duval, B. P., Fasoli, A., Federspiel, L., Felici, F., Fontana, M., Furno, I., Galperti, C., Garrido, I., Genoud, J., Goodman, T. P., Graves, J. P., Hennequin, P., Hogge, J. -Ph., Hommen, G., Huang, Z., Joye, B., Kamleitner, J., Karpushov, A., Kim, D., Kirneva, N., Krämer-Flecken, A., Labit, B., Lazzaro, E., Le, H. B., Lefevre, L., Li, F., Lipschultz, B., Lister, J. B., Llobet, X., Lunt, T., Malygin, A., Maljaars, E., Marini, C., Martin, Y., Mattei, M., Merle, A., Molina Cabrera, P. A., Moreau, D., Moret, J. -M., Morgan, T., Mustafin, N. A., Nespoli, F., Nouailletas, R., Nowak, S., Peysson, Y., Pironti, A., Pochelon, A., Porte, L., Reimerdes, H., Sauter, O., Schlatter, Ch., Schuster, E., Silva, M., Sinha, J., Stoltzfus-Dueck, T., Tál, B., Teplukhina, A. A., Testa, D., Theiler, C., Tonetti, G., Tran, M. Q., Tsui, C., Vermare, L., Vernay, T., Vijvers, W. A. J., Vu, N. M. T., Vuille, V., Weisen, H., Wenninger, R., Witrant, E., Hogge, J. P. h., Krämer Flecken, A., Mattei, Massimiliano, Moret, J. M., Schlatter, C. h., Stoltzfus Dueck, T., and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Tokamak, DEMO, ITER, nuclear fusion, plasma, TCV, tokamak, Condensed Matter Physics, Cyclotron, Condensed Matter Physic, 7. Clean energy, Electron cyclotron resonance, law.invention, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], Physics::Plasma Physics, law, Physics, Toroid, Divertor, Plasma, Fusion power, Computational physics, Heat flux, Atomic physics
Abstract

International audience; TCV is acquiring a new 1 MW neutral beam and 2 MW additional third-harmonic electron cyclotron resonance heating (ECRH) to expand its operational range. Its existing shaping and ECRH launching versatility was amply exploited in an eclectic 2013 campaign. A new sub-ms real-time equilibrium reconstruction code was used in ECRH control of NTMs and in a prototype shape controller. The detection of visible light from the plasma boundary was also successfully used in a position-control algorithm. A new bang-bang controller improved stability against vertical displacements. The RAPTOR real-time transport simulator was employed to control the current density profile using electron cyclotron current drive. Shot-by-shot internal inductance optimization was demonstrated by iterative learning control of the current reference trace. Systematic studies of suprathermal electrons and ions in the presence of ECRH were performed. The L?H threshold power was measured to be ?50?75% higher in both H and He than D, to increase with the length of the outer separatrix, and to be independent of the current ramp rate. Core turbulence was found to decrease from positive to negative edge triangularity deep into the core. The geodesic acoustic mode was studied with multiple diagnostics, and its axisymmetry was confirmed by a full toroidal mapping of its magnetic component. A new theory predicting a toroidal rotation component at the plasma edge, driven by inhomogeneous transport and geodesic curvature, was tested successfully. A new high-confinement mode (IN-mode) was found with an edge barrier in density but not in temperature. The edge gradients were found to govern the scaling of confinement with current, power, density and triangularity. The dynamical interplay of confinement and magnetohydrodynamic modes leading to the density limit in TCV was documented. The heat flux profile decay lengths and heat load profile on the wall were documented in limited plasmas. In the snowflake (SF) divertor configuration the heat flux profiles were documented on all four strike points. SF simulations with the EMC3-EIRENE code, including the physics of the secondary separatrix, underestimate the flux to the secondary strike points, possibly resulting from steady-state E × B drifts. With neon injection, radiation in a SF was 15% higher than in a conventional divertor. The novel triple-null and X-divertor configurations were also achieved in TCV.

Published
2015

29. Recent TCV results innovative plasma shaping to improve plasma properties and insight

Author

Pochelon, A., Angelino, P., Behn, R., Brunner, S., Kirneva, N., Medvedev, S, Reimerdes, H., Rossel, J., Sauter, O., Villard, L., Wagner, D., Bottino, A., Carmenen, Y., Canal, G. P., Chattopadhyay, P. K., Coda, S., Duval, B. P., Goodman, T. P., Jolliet, S., Karpushov, A., Labit, B., Marinoni, A., Moret, J.-M., Pitzschke, A., Porte, L., Rancic, M., Udintsev, V. S., and TCV Team

Published
2012

30. Conceptual design of an ECRH system for JET

Author

Sozzi C., Giruzzi G., Lennholm M., Parkin A., Aiello G., Bellinger M., Bird J., Bouquey F., Braune H., Bruschi A., Butcher P., Clay R., de la Luna E., Denisov G., Edlington T., Fanthome J., Farina D., Farthing J., Figini L., Garavaglia S., Garcia J., Gardener M., Gerbaud T., Granucci G., Hay J., Henderson M., Hotchin S., Ilyin V.N., Jennison M., Kasparek W., Khilar P., Kirneva N., Kislov D., Knipe S., Kuyanov A., Litaudon X., Litvak A.G., Moro A., Nowak S., Parail V., Plaum B., Saibene G., Späh P., Strauss D., Trukhina E., Vaccaro A., Vagdama A., Vdovin V., and JET EFDA Contributors

Subjects
____
Abstract

____

Published
2011

31. Objectives, physics requirements and conceptual design of an ECRH system for JET

Author

Giruzzi, G [ 1 ], Lennholm, M [ 3,4 ], Parkin, A [ 5 ], Aiello, G [ 6 ], Bellinger, M [ 5 ], Bird, J [ 5 ], Bouquey, F [ 1 ], Braune, H [ 7 ], Bruschi, A [ 8 ], Butcher, P [ 5 ], Clay, R [ 5 ], de la Luna, E [ 3,9 ], Denisov, G [ 10 ], Edlington, T [ 5 ], Fanthome, J [ 5 ], Farina, D [ 8 ], Farthing, J [ 5 ], Figini, L [ 8 ], Garavaglia, S [ 8 ], Garcia, J [ 1 ], Gardener, M [ 5 ], Gerbaud, T [ 11 ], Granucci, G [ 8 ], Hay, J [ 5 ], Henderson, M [ 12 ], Hotchin, S [ 5 ], Ilyin, VN [ 13 ], Jennison, M [ 5 ], Kasparek, W [ 14 ], Khilar, P [ 5 ], Kirneva, N [ 13 ], Kislov, D [ 13 ], Knipe, S [ 5 ], Kuyanov, A [ 13 ], Litaudon, X [ 1 ], Litvak, AG [ 10 ], Moro, A [ 8 ], Nowak, S [ 8 ], Parail, V [ 5 ], Plaum, B [ 14 ], Saibene, G [ 15 ], Sozzi, C [ 8 ], Spah, P [ 6 ], Strauss, D [ 6 ], Trukhina, E [ 13 ], Vaccaro, A [ 6 ], Vagdama, A [ 5 ], Vdovin, V, 13, and JET-EFDA Contributors

Subjects
Nuclear and High Energy Physics, Jet (fluid), Tokamak, Nuclear engineering, feasibility study, Sawtooth wave, Condensed Matter Physics, Project team, Electron cyclotron resonance, law.invention, ECRH, Upgrade, Conceptual design, law, JET, Beta (plasma physics), heating systems
Abstract

A study has been conducted to evaluate the feasibility of installing an electron cyclotron resonance heating (ECRH) and current drive system on the JET tokamak. The main functions of this system would be electron heating, sawtooth control, neoclassical tearing mode control to access high beta regimes and current profile control to access and maintain advanced plasma scenarios. This paper presents an overview of the studies performed in this framework by an EU-Russia project team. The motivations for this major upgrade of the JET heating systems and the required functions are discussed. The main results of the study are summarized. The usefulness of a 10 MW level EC system for JET is definitely confirmed by the physics studies. Neither feasibility issues nor strong limitations for any of the functions envisaged have been found. This has led to a preliminary conceptual design of the system.

Published
2011
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32. An ECRH system for JET: a feasibility study

Author

Lennholm, M [ 1,2 ], Giruzzi, G [ 3 ], Parkin, A [ 4 ], Bouquey, F [ 3 ], Braune, H [ 5 ], Bruschi, A [ 6 ], de la Luna, E [ 1,7 ], Denisov, G [ 8 ], Edlington, T [ 4 ], Farina, D [ 6 ], Farthing, J [ 4 ], Figini, L [ 6 ], Garavaglia, S [ 6 ], Garcia, J [ 3 ], Gerbaud, T [ 9 ], Granucci, G [ 6 ], Henderson, M [ 10 ], Horton, L [ 1,2 ], Kasparek, W [ 11 ], Khilar, P [ 4 ], Jennison, M [ 4 ], Kirneva, N [ 12 ], Kislov, D [ 12 ], Kuyanov, A [ 12 ], Litaudon, X [ 3 ], Litvak, AG [ 8 ], Moro, A [ 6 ], Nowak, S [ 6 ], Parail, V [ 4 ], Plaum, B [ 11 ], Rimini, F [ 1,2 ], Saibene, G [ 13 ], Sips, A [ 1,2 ], Sozzi, C [ 6 ], Spah, P [ 14 ], Trukhina, E [ 12 ], Vaccaro, A [ 14 ], and Vdovin, V [ 12 ]

Subjects
JET, Electron Cyclotron, ECRH
Abstract

For JET to fulfil its mission in preparing ITER operation, the installation of an electron cyclotron resonance heating system on JET would be desirable. The study described in this paper has investigated the feasibility of installing such a system on JET. The principal goals of such a system are: current drive over a range of radii for NTM stabilization, sawtooth control and current profile tailoring and central electron heating to equilibrate electron and ion temperatures in high performance discharges. The study concluded that a 12 gyrotron, 10 MW, system at the ITER frequency (170 GHz) adapted for fields of 2.7-3.3 T would be appropriate for the operation planned in JET. An antenna allowing toroidal and poloidal steering over a wide range is being designed, using the ITER upper launcher steering mechanism. The use of ITER diamond windows and transmission line technology is suggested while power supply solutions partially reusing existing JET power supplies are proposed. Detailed planning shows that such a system can be operational in about 5 years from the time that the decision to proceed is taken. The cost and required manpower associated with implementing such a system on JET has also been estimated.

Published
2011

33. Objectives, Physics Requirements and Conceptual Design of an ECRH system for JET

Author

Giruzzi G., Lennholm M., Parkin A., Bouquey F., Braune H., Bruschi A., De La Luna E., Denisov G., Edlington T., Farina D., Farthing J., Figini L., Garavaglia S., Garcia J., Gerbaud T., Granucci G., Henderson M., Jennison M., Khilar P., Kirneva N., Kislov D., Kuyanov A., Litaudon X., Litvak A.G., Moro A., Nowak S., Parail V., Saibene G., Sozzi C., Trukhina E., and Vdovin V.

Subjects
____
Abstract

____

Published
2010

34. High density experiments in TCV ohmically heated and L-mode plasmas

Author

Kirneva, N A, primary, Behn, R, additional, Canal, G P, additional, Coda, S, additional, Duval, B P, additional, Goodman, T P, additional, Labit, B, additional, Mustafin, N A, additional, Karpushov, A N, additional, Pochelon, A, additional, Porte, L, additional, Sauter, O, additional, Silva, M, additional, Tal, B, additional, and Vuille, V, additional

Published
2014
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35. Progress in the ITER Physics Basis - Chapter 1: Overview and summary

Author

Shimada, M., Campbell, D.J., Mukhovatov, V., Fujiwara, M., Kirneva, N., Lackner, K., Nagami, M., Pustovitov, V.D., Uckan, N., Wesley, J., Asakura, N., Costley, A.E., Donne, A.J. H., Doyle, E.J., Fasoli, A., Gormezano, C., Gribov, Y., Gruber, O., Hender, T.C., Houlberg, W., Ide, S., Kamada, Y., Leonard, A., Lipschultz, B., Loarte, A., Miyamoto, K., Osborne, T.H., Polevoi, A., and Sipps, A.C. C.

Published
2007

36. Physics of transport in tokamaks

Author

Garbet, X., Mantica, P., Angioni, C., Asp, E., Baranov, Y., Bourdelle, C., Budny, R., Crisanti, F., Cordey, G., Garzotti, L., Kirneva, N., Hogeweij, D., Hoang, T., Imbeaux, F., Joffrin, E., Litaudon, X., Manini, A., McDonald, C., Nordman, H., Parail, V., Peeters, A., Ryter, F., Sozzi, C., Valovic, M., Tala, T., Thyagaraja, A., Voitsekhovitch, I., Weiland, J., Weisen, H., and Zabolotsky, A.

Subjects
Physics::Fluid Dynamics, Physics::Plasma Physics
Abstract

This paper is an overview of recent results relating to turbulent particle and heat transport, and to the triggering of internal transport barriers (ITBs). The dependence of the turbulent particle pinch velocity on plasma parameters has been clarified and compared with experiment. Magnetic shear and collisionality are found to play a central role. Analysis of heat transport has made progress along two directions: dimensionless scaling laws, which are found to agree with the prediction for electrostatic turbulence, and analysis of modulation experiments, which provide a stringent test of transport models. Finally the formation of ITBs has been addressed by analysing electron transport barriers. It is confirmed that negative magnetic shear, combined with the Shafranov shift, is a robust stabilizing mechanism. However, some well established features of internal barriers are not explained by theory.

Published
2004

37. Status of and prospects for advanced tokamak regimes from multi-machine comparisons using the 'International Tokamak Physics Activity' database

Author

Litaudon, X., Barbato, E., Becoulet, A., Doyle, E.J., Fujita, T., Gohil, P., Imbeaux, F., Sauter, O., Sips, G., Connor, J.W., Esipchuk, Y., Fukuda, T., Kinsey, J., Kirneva, N., Lebedev, S., Mukhovatov, V., Rice, J., Synakowski, E., Toi, K., Unterberg, B., Vershkov, V., Wakatani, M., Aniel, T., Baranov, Y.F., Baranoto, E., Behn, R., Bourdelle, C., Bracco, G., Budny, R.V., Buratti, P., Esposito, B., Ide, S., Field, A.R., Gormezano, C., Greenfield, C., Greenwald, M., Hahm, T.S., Hoang, G.T., Hobirk, J., Hogeweij, D., Isayama, A., Joffrin, E., Kamada, Y., Luce, T.C., Murakami, M., Parail, V., Peng, Y.K. M., Ryter, F., Sakamoto, Y., Shirai, H., Suzuki, T., Takenaga, H., Takizuka, T., Tala, T., Wade, M.R., and Weiland, J.

Published
2004

38. Increased understanding of the dynamics and transport in ITB plasmas from multi-machine comparisons

Author

Gohil, P., Kinsey, J., Parail, V., Litaudon, X., Fukuda, T., Hoang, T., Connor, J., Doyle, E., Esipchuk, Y., Fujita, T., Lebedev, S., Mukhovatov, V., Rice, J., Synakowski, E., Toi, K., Unterberg, B., Vershkov, V., Wakatani, M., Weiland, J., Aniel, T., Baranov, Y., Barbato, E., Bécoulet, A., Bourdelle, C., Bracco, G., Budny, R., Buratti, P., Ericsson, L., Esposito, B., Greenfield, C., Greenwald, M., Hahm, T., Hellsten, T., Hogeweij, D., Ide, S., Imbeaux, F., Kamada, Y., Kirneva, N., Maget, P., Peeters, A., Razumova, K., Ryter, F., Sakamoto, Y., Shirai, H., Sips, G., Suzuki, T., Takizuka, T., and Wolf, R.

Abstract

Our understanding of the physics of internal transport barriers (ITBs) is being furthered by analysis and comparisons of experimental data from many different tokamaks worldwide. An international database consisting of scalar and 2-D profile data on ITB plasmas is being developed to determine the requirements for the formation and sustainment of ITBs and to perform tests of theory-based transport models in an effort to improve the predictive capability of the models. Tests of several transport models (JETTO, Weiland model) using the 2-D profile data indicate that there is only limited agreement between the model predictions and the experimental results for the range of plasma conditions examined for the different devices (DIII–D, JET, JT-60U). Gyrokinetic stability analysis of the ITB discharges from these devices indicates that the ITG/TEM growth rates decrease with increased negative magnetic shear and that the ExB shear rate is comparable to the linear growth rates at the location of the ITB.

Published
2003

40. Toroidal and poloidal momentum transport studies in Tokamaks

Author

Tala, T., Andrew, Y., Giroud, C., Crombe, K., Vries, P.C. de, Garbet, X., Nordman, H., Rantamäki, K., Thyagaraja, A., Weiland, J., Baranov, Y., Budny, R., Challis, C., Corrigan, G., Eriksson, A., Eriksson, L.-G., Ferreira, J., Hawkes, N., Hellsten, T., Hua, M.-D., Henkins, I., Kirneva, N., Mantica, P., Naulin, V., Nave, F., Larail, V., Peeters, A., Pinches, S., Scott, B., Strand, P., Tardini, G., Zastrow, K.-D., Tala, T., Andrew, Y., Giroud, C., Crombe, K., Vries, P.C. de, Garbet, X., Nordman, H., Rantamäki, K., Thyagaraja, A., Weiland, J., Baranov, Y., Budny, R., Challis, C., Corrigan, G., Eriksson, A., Eriksson, L.-G., Ferreira, J., Hawkes, N., Hellsten, T., Hua, M.-D., Henkins, I., Kirneva, N., Mantica, P., Naulin, V., Nave, F., Larail, V., Peeters, A., Pinches, S., Scott, B., Strand, P., Tardini, G., and Zastrow, K.-D.

Published
2007

42. FEASIBILITY OF AN ECRH SYSTEM FOR JET: PROJECT OVERVIEW

Author

GIRUZZI, G., primary, LENNHOLM, M., additional, PARKIN, A., additional, BOUQUEY, F., additional, BRAUNE, H., additional, BRUSCHI, A., additional, DE LA LUNA, E., additional, DENISOV, G., additional, EDLINGTON, T., additional, FARINA, D., additional, FARTHING, J., additional, FIGINI, L., additional, GARAVAGLIA, S., additional, GARCIA, J., additional, GERBAUD, T., additional, GRANUCCI, G., additional, HENDERSON, M., additional, JENNISON, M., additional, KHILAR, P., additional, KIRNEVA, N., additional, KISLOV, D., additional, KUYANOV, A., additional, LITAUDON, X., additional, LITVAK, A.G., additional, MORO, A., additional, NOWAK, S., additional, PARAIL, V., additional, SAIBENE, G., additional, SOZZI, C., additional, TRUKHINA, E., additional, and VDOVIN, V., additional

Published
2011
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43. An international database for the study of the formation of ITBs in tokamaks

Author

Sips, A. C. C., Peeters, A., Ryter, F., Wolf, R., Greenwald, M., Gohil, P., Greenfield, C., Kinsey, J., Barbato, E., Bracco, G., Buratti, P., Esposito, B., Baranov, Y., Hellsten, Torbjörn A. K., Aniel, T., Becoulet, A., Eriksson, L., Garbet, X., Hoang, T., Imbeaux, F., Litaudon, X., Maget, P., Fukuda, T., Fujita, T., Ide, S., Kamada, Y., Sakamoto, Y., Shirai, H., Suzuki, T., Takizuka, T., Hogeweij, D., Esipchuk, Y., Ivanov, N., Kirneva, N., Razumova, K., Hahm, T., Synakowski, E., Doyle, E., Sips, A. C. C., Peeters, A., Ryter, F., Wolf, R., Greenwald, M., Gohil, P., Greenfield, C., Kinsey, J., Barbato, E., Bracco, G., Buratti, P., Esposito, B., Baranov, Y., Hellsten, Torbjörn A. K., Aniel, T., Becoulet, A., Eriksson, L., Garbet, X., Hoang, T., Imbeaux, F., Litaudon, X., Maget, P., Fukuda, T., Fujita, T., Ide, S., Kamada, Y., Sakamoto, Y., Shirai, H., Suzuki, T., Takizuka, T., Hogeweij, D., Esipchuk, Y., Ivanov, N., Kirneva, N., Razumova, K., Hahm, T., Synakowski, E., and Doyle, E.

Abstract

For the first time, data from eight,different tokamaks have been combined in an international database for internal transport barriers (ITBs). An analysis of the data for the formation of an ITB with dominant ion heating shows a clear dependence of the threshold power on the minor radius and line-averaged electron density for the formation of ion ITBs. The dependence of ITB formation on the toroidal magnetic field is weak. For the formation of ITBs with dominant electron heating, the database is smaller, but for the threshold power a strong increase with plasma size and a weak toroidal field dependence could also be identified. Based on these results, an expression for the power required to form an ITB is given using global variables only. These results give a basis for the analysis of the database using local values (like magnetic shear) and a detailed comparison with theory-based models., QC 20100525

Published
2002
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44. Results of Joint Experiments and other IAEA activities on research using small tokamaks

Author

Gryaznevich, M., primary, Van Oost, G., additional, Peleman, P., additional, Brotankova, J., additional, Dejarnac, R., additional, Dufkova, E., additional, Ďuran, I., additional, Hron, M., additional, Sentkerestiova, J., additional, Stöckel, J., additional, Weinzettl, V., additional, Zajac, J., additional, Berni, L.A., additional, Bosco, E. Del, additional, Ferreira, J.G., additional, Simões, F.J.R., additional, Berta, M., additional, Dunai, D., additional, Tál, B., additional, Zoletnik, S., additional, Malaquias, A., additional, Mank, G., additional, Figueiredo, H., additional, Kuznetsov, Y., additional, Ruchko, L., additional, Hegazy, H., additional, Ovsyannikov, A., additional, Sukhov, E., additional, Vorobjev, G.M., additional, Dreval, N., additional, Singh, A., additional, Budaev, V., additional, Kirnev, G., additional, Kirneva, N., additional, Kuteev, B., additional, Melnikov, A., additional, Nurov, D., additional, Sokolov, M., additional, Vershkov, V., additional, Talebitaher, A., additional, Khorshid, P., additional, Gonzales, R., additional, El Chama Neto, I., additional, Kraemer-Flecken, A.W., additional, Soldatov, V., additional, Brotas, B., additional, Carvalho, P., additional, Coelho, R., additional, Duarte, A., additional, Fernandes, H., additional, Figueiredo, J., additional, Fonseca, A., additional, Gomes, R., additional, Nedzelski, I., additional, Neto, A., additional, Ramos, G., additional, Santos, J., additional, Silva, C., additional, Valcárcel, D., additional, Gutierrez Tapia, C.R., additional, Krupnik, L.I., additional, Petrov, L., additional, Kolokoltsov, M., additional, Herrera, J., additional, Nieto-Perez, M., additional, Czarnecka, A., additional, Balan, P., additional, Sharnin, A., additional, and Pavlov, V., additional

Published
2009
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45. Joint Experiments on the Tokamaks CASTOR and T-10

Author

Van Oost, G., primary, Gryaznevich, M., additional, Del Bosco, E., additional, Malaquias, A., additional, Mank, G., additional, Berta, M., additional, Brotankova, J., additional, Dejarnac, R., additional, Dufkova, E., additional, Duran, I., additional, Hron, M., additional, Peleman, P., additional, Sentkerestiova, J., additional, Stöckel, J., additional, Tál, B., additional, Weinzettl, V., additional, Zajac, J., additional, Zoletnik, S., additional, Budaev, V., additional, Kirneva, N., additional, Kirnev, G., additional, Kuteev, B., additional, Melnikov, A., additional, Sokolov, M., additional, Vershkov, V., additional, Neto, I. El Chama, additional, Ferreira, J., additional, Gonzales, R., additional, Tapia, C. R. Gutierrez, additional, Hegazy, H., additional, Khorshid, P., additional, Kraemer-Flecken, A. W., additional, Krupnik, L. I., additional, Kuznetsov, Y., additional, Fonseca, A. M. Marques, additional, Ovsyannikov, A., additional, Ruchko, L., additional, Sukhov, E., additional, Singh, A., additional, Soldatov, V., additional, Talebitaher, A., additional, Vorobjev, G. M., additional, Varandas, Carlos, additional, and Sliva, Carlos, additional

Published
2008
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46. Chapter 1: Overview and summary

Author

Shimada, M, primary, Campbell, D.J, additional, Mukhovatov, V, additional, Fujiwara, M, additional, Kirneva, N, additional, Lackner, K, additional, Nagami, M, additional, Pustovitov, V.D, additional, Uckan, N, additional, Wesley, J, additional, Asakura, N, additional, Costley, A.E, additional, Donné, A.J.H, additional, Doyle, E.J, additional, Fasoli, A, additional, Gormezano, C, additional, Gribov, Y, additional, Gruber, O, additional, Hender, T.C, additional, Houlberg, W, additional, Ide, S, additional, Kamada, Y, additional, Leonard, A, additional, Lipschultz, B, additional, Loarte, A, additional, Miyamoto, K, additional, Osborne, T.H, additional, Polevoi, A, additional, and Sips, A.C.C, additional

Published
2007
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47. Internal transport barrier formation in experiments with reverse magnetic shear in T-10 tokamak

Author

Kirneva, N A, primary, Esipchuk, Yu V, additional, Borschegovskij, A A, additional, Chistyakov, V V, additional, Gorbunov, E P, additional, Denisov, V Ph, additional, Dremin, M M, additional, Kakurin, A M, additional, Khimchenko, L N, additional, Kislov, D A, additional, Krylov, S V, additional, Krupin, V A, additional, Myalton, T B, additional, Novikov, A Yu, additional, Orlovskij, I I, additional, Pavlov, Yu D, additional, Petrov, D P, additional, Ploskirev, G N, additional, Roy, I N, additional, Ryjakov, D V, additional, Shelukhin, D A, additional, Skovoroda, A A, additional, Skosirev, Yu V, additional, Slepneva, L I, additional, Sushkov, A V, additional, Trukhin, V M, additional, Trukhina, E V, additional, and team, the T-10, additional

Published
2005
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48. Physics of transport in tokamaks

Author

Garbet, X, primary, Mantica, P, additional, Angioni, C, additional, Asp, E, additional, Baranov, Y, additional, Bourdelle, C, additional, Budny, R, additional, Crisanti, F, additional, Cordey, G, additional, Garzotti, L, additional, Kirneva, N, additional, Hogeweij, D, additional, Hoang, T, additional, Imbeaux, F, additional, Joffrin, E, additional, Litaudon, X, additional, Manini, A, additional, McDonald, D C, additional, Nordman, H, additional, Parail, V, additional, Peeters, A, additional, Ryter, F, additional, Sozzi, C, additional, Valovic, M, additional, Tala, T, additional, Thyagaraja, A, additional, Voitsekhovitch, I, additional, Weiland, J, additional, Weisen, H, additional, Zabolotsky, A, additional, and Contributors, the JET EFDA, additional

Published
2004
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49. Status of and prospects for advanced tokamak regimes from multi-machine comparisons using the International Tokamak Physics Activity database

Author

Litaudon, X, primary, Barbato, E, additional, Bécoulet, A, additional, Doyle, E J, additional, Fujita, T, additional, Gohil, P, additional, Imbeaux, F, additional, Sauter, O, additional, Sips, G, additional, Physics, for the International Tokamak Physi, additional, Connor, J W, additional, Esipchuk, Yu, additional, Fukuda, T, additional, Kinsey, J, additional, Kirneva, N, additional, Lebedev, S, additional, Litaudon, X, additional, Mukhovatov, V, additional, Rice, J, additional, Synakowski, E, additional, Toi, K, additional, Unterberg, B, additional, Vershkov, V, additional, Wakatani, M, additional, regimes, for the International ITB Database, additional, Aniel, T, additional, Baranov, Yu F, additional, Behn, R, additional, Bourdelle, C, additional, Bracco, G, additional, Budny, R V, additional, Buratti, P, additional, Esposito, B, additional, Ide, S, additional, Field, A R, additional, Gormezano, C, additional, Greenfield, C, additional, Greenwald, M, additional, Hahm, T S, additional, Hoang, G T, additional, Hobirk, J, additional, Hogeweij, D, additional, Isayama, A, additional, Joffrin, E, additional, Kamada, Y, additional, Luce, T C, additional, Murakami, M, additional, Parail, V, additional, Peng, Y-K M, additional, Ryter, F, additional, Sakamoto, Y, additional, Shirai, H, additional, Suzuki, T, additional, Takenaga, H, additional, Takizuka, T, additional, Tala, T, additional, Wade, M R, additional, and Weiland, J, additional

Published
2004
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50. Increased understanding of the dynamics and transport in ITB plasmas from multi-machine comparisons

Author

Gohil, P, primary, Kinsey, J, additional, Parail, V, additional, Litaudon, X, additional, Fukuda, T, additional, Hoang, T, additional, Connor, for the ITPA Group on Transport and, additional, Doyle, E.J, additional, Esipchuk, Yu, additional, Fujita, T, additional, Gohil, P, additional, Lebedev, S, additional, Mukhovatov, V, additional, Rice, J, additional, Synakowski, E, additional, Toi, K, additional, Unterberg, B, additional, Vershkov, V, additional, Wakatani, M, additional, Weiland, J, additional, Aniel, for the International ITB Database, additional, Baranov, Yu.F, additional, Barbato, E, additional, B coulet, A, additional, Bourdelle, C, additional, Bracco, G, additional, Budny, R.V, additional, Buratti, P, additional, Ericsson, L, additional, Esposito, B, additional, Greenfield, C, additional, Greenwald, M, additional, Hahm, T, additional, Hellsten, T, additional, Hogeweij, D, additional, Ide, S, additional, Imbeaux, F, additional, Kamada, Y, additional, Kirneva, N, additional, Maget, P, additional, Peeters, A, additional, Razumova, K, additional, Ryter, F, additional, Sakamoto, Y, additional, Shirai, H, additional, Sips, G, additional, Suzuki, T, additional, and Takizuka, T, additional

Published
2003
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