Author: "T. T. Ribeiro" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"T. T. Ribeiro"' showing total 120 results

Start Over Author "T. T. Ribeiro"

120 results on '"T. T. Ribeiro"'

1. Classification of Raw Electroencephalogram Signals for Diagnosis of Epilepsy Using Functional Connectivity

Author: T. T. Ribeiro, J. S. Fiel, E. M. Melo, R. E. S. Navegantes, F. Gomes, and A. Pereira Junior
Published: 2022
Full Text: View/download PDF

2. Gelotophobia in the Academic Environment: A Preliminary Study

Author: T. S. Rêgo, D. E. S. Pires, T. T. Ribeiro, R. E. S. Navegantes, D. S. Miranda, E. M. Melo, and A. Pereira-Junior
Published: 2022
Full Text: View/download PDF

3. 2D full-wave simulations of conventional reflectometry using 3D gyro-fluid plasma turbulence

Author: José Vicente, Carlos A. Silva, G. D. Conway, Bill Scott, F. da Silva, Stéphane Heuraux, T. T. Ribeiro, Instituto de Plasmas e Fusão Nuclear [Lisboa] (IPFN), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), Max-Planck-Institut für Plasmaphysik [Garching] (IPP), Institut Jean Lamour (IJL), and Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, reflectometry, gyro-fluid, Turbulence, turbulence, Phase (waves), Condensed Matter Physics, Curvature, 01 natural sciences, 010305 fluids & plasmas, Computational physics, Root mean square, full-wave, Amplitude, Nuclear Energy and Engineering, Physics::Plasma Physics, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, Wavenumber, simulations, 010306 general physics, Reflectometry, Doppler broadening
Abstract: International audience; Asynthetic reflectometer based on the 2D finite-difference time-domain full-wave code REFMUL is applied to data from 3D numerical simulations of edge and scrape-off layer plasma turbulence obtained with the GEMR code. Full-wave simulations are performed using the conventional reflectometry setup with O-mode waves, fixed frequency probing and an equivalent I/Q detection scheme. Results show a significant spectral broadening of the synthetic reflectometry complex amplitude A(t)e ij (t) with increasing probing frequency. The reflectometry response displays 2p phase jumps which are due to the self-consistent evolution of turbulent density structures. The range ∼3%-6% of moderate turbulence amplitude is studied here, in the transition from the linear to nonlinear regimes of conventional reflectometry. While a phase jump removal algorithm is applied, spectral broadening of the phase with increasing probing frequency is nevertheless observed. Linear scaling of phase fluctuations with d /nn ee is also retrieved. REFMUL simulations with turbulence data rendered on both the GEMR field aligned coordinates (drift planes, neglecting circular magnetic flux surfaces) and on polar geometry (poloidal planes, taking into account plasma curvature) are carried out revealing similar trends on both coordinate systems. However, phase fluctuations obtained from poloidal planes display higher root mean square values, compared to drift planes. This could be expected from an increased sensitivity of the reflectometer to higher wavenumbers, due to plasma curvature effects.
Published: 2020
Full Text: View/download PDF

4. Recent EUROfusion Achievements in Support of Computationally Demanding Multiscale Fusion Physics Simulations and Integrated Modeling

Author: F. Robin, A. Maslennikov, Marcin Plociennik, D. Figat, T. T. Ribeiro, Frederic Imbeaux, Everton Ferreira Rossi, S. D. Pinches, L. Fleury, M. Hölzl, Irina Voitsekhovitch, K. S. Kang, D. Kaljun, T.-M. Tran, H. Leggate, T. B. Feher, Roman Hatzky, José Maria N. David, D. P. Coster, Stéphane Heuraux, David Tskhakaya, Albert Gutierrez-Milla, Bartek Palak, J. Signoret, F. Iannone, D. Yadykin, S. Mochalskyy, M. Martone, D. C. McDonald, J. Hollocombe, Giovanni Bracco, C. Vouland, Richard Leopold Kamendje, J. Noe, X. Sáez, Michal Owsiak, O. Hoenen, F. da Silva, V. Pais, T. Aniel, Gabriele Manduchi, and Barcelona Supercomputing Center
Subjects: Nuclear and High Energy Physics, Tokamak, Speedup, Infrastructure for integrated modeling, infrastructure for integrated modeling, Code optimization and parallelization, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, law.invention, code optimization and parallelization, Physics::Plasma Physics, law, 0103 physical sciences, Fusió nuclear, General Materials Science, Magnetohydrodynamic drive, Aerospace engineering, 010306 general physics, Civil and Structural Engineering, Física [Àrees temàtiques de la UPC], business.industry, Mechanical Engineering, Suite, Magnetic reconnection, Supercomputer, Nuclear Energy and Engineering, Nuclear fusion, Transient (oscillation), Enhanced Data Rates for GSM Evolution, business, High-performance computer
Abstract: Integrated modeling (IM) of present experiments and future tokamak reactors requires the provision of computational resources and numerical tools capable of simulating multiscale spatial phenomena as well as fast transient events and relatively slow plasma evolution within a reasonably short computational time. Recent progress in the implementation of the new computational resources for fusion applications in Europe based on modern supercomputer technologies (supercomputer MARCONI-FUSION), in the optimization and speedup of the EU fusion-related first-principle codes, and in the development of a basis for physics codes/modules integration into a centrally maintained suite of IM tools achieved within the EUROfusion Consortium is presented. Physics phenomena that can now be reasonably modelled in various areas (core turbulence and magnetic reconnection, edge and scrape-off layer physics, radio-frequency heating and current drive, magnetohydrodynamic model, reflectometry simulations) following successful code optimizations and parallelization are briefly described. Development activities in support to IM are summarized. They include support to (1) the local deployment of the IM infrastructure and access to experimental data at various host sites, (2) the management of releases for sophisticated IM workflows involving a large number of components, and (3) the performance optimization of complex IM workflows. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014 to 2018 under grant agreement 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission or ITER.
Published: 2018
Full Text: View/download PDF

5. OVERVIEW OF PHYSICS STUDIES ON ASDEX UPGRADE

Author: Neville C. Luhmann, J. Mailloux, A. Kappatou, Yann Camenen, R. Arredondo Parra, P. Petersson, G. F. Harrer, I. Gomez Ortiz, E. Giovannozzi, S. S. Henderson, C. Sommariva, Thomas Schwarz-Selinger, G. Fuchert, Christopher G. Albert, P. Piovesan, A. Herrmann, C. Piron, Robert Lunsford, J. Hobirk, F. Clairet, L. Xiang, Carlo Cazzaniga, A. Burckhart, B. Kurzan, Bernhard Ploeckl, G. Kocsis, A. Mancini, Benoit Labit, M. Reich, N. den Harder, Faa Federico Felici, M. Oberparleiter, Tamás Szepesi, Sibylle Günter, K. Behler, R. Merkel, Ocleto D'Arcangelo, G. Haas, Alessandro Bortolon, T. B. Cote, E. Trier, P. Simon, A. Gude, Daniele Milanesio, Winfried Kernbichler, Dorothea Gradic, M. Rodriguez-Ramos, G.A. Rattá, G. Croci, O. Tudisco, E. Heyn, M. Groth, J. Gonzalez Martin, Olivier Sauter, Irena Ivanova-Stanik, Massimo Nocente, J. R. Harrison, Martin Heyn, C. Bruhn, C. Ham, L. Shao, M. Schubert, F. Brochard, Yu Gao, Bernd Heinemann, Sandra C. Chapman, Armin Manhard, S. S. Denk, A. Jardin, D. P. Coster, G. Schall, L. Horvath, Alexander Creely, Roman Schrittwieser, Patrick J. McCarthy, C. Castaldo, B. Wiringer, M. J. Mantsinen, Till Höschen, Ph. Lauber, V. Mertens, Anders Nielsen, G. Suarez, M. E. Manso, M. Dibon, S. Wiesen, Mirko Salewski, C. D. Challis, J. Schweinzer, D. Douai, Lorenzo Frassinetti, R. C. Wolf, Mirko Ramisch, P. de Marne, Yueqiang Liu, H. van den Brand, S. Nowak, E. Joffrin, M. Teschke, Karl Schmid, D. Silvagni, L. Giannone, D. I. Refy, E. Wolfrum, M. Sertoli, Chanho Moon, O. J. W. F. Kardaun, A. Ross, S. Elgeti, A. Shalpegin, G. D. Conway, A. Sigalov, Alberto Bottino, Benedikt Geiger, M. Willensdorfer, D. C. van Vugt, Mark Maraschek, W. Zhang, M. Oberkofler, M. Griener, Stylianos Varoutis, Bill Scott, F. Monaco, W. Suttrop, Helmut Faugel, Christian Hopf, J. Vicente, Gerhard Raupp, S. Fietz, Omar Maj, D. Terranova, Q. Yu, E. Seliunin, L. Gil, K. Lackner, I. Novikau, S. Heinzel, G. Birkenmeier, O. Linder, I. Zammuto, H. Fünfgelder, Alessandro Biancalani, D. Prisiazhniuk, Analiza M. Silva, Volker Hauer, Ulrich Stroth, M. Faitsch, Toke Koldborg Jensen, S. Brezinsek, S. Garavaglia, V. Nikolaeva, C. Angioni, T. Maceina, Antti Snicker, O. Schmitz, T. Vierle, A. Scarabosio, D. Carlton, F. Penzel, M. Tardocchi, Riccardo Maggiora, V. Plyusnin, A. Bergmann, A. Bock, G. Rocchi, Andreas Frank Martitsch, J. W. Coenen, I. Erofeev, Pierre Manas, J. Stober, O. Meyer, M. A. Van Zeeland, A. S. Jacobsen, H. Meister, Jens Madsen, E. Smigelskis, A. Lohs, T. Happel, A. Gallo, F. Ryter, P. A. Schneider, A. Kallenbach, Alf Köhn, C. Bottereau, I. Paradela Perez, N. Arden, M. Koubiti, Gergely Papp, Burkhard Plaum, Jorge Ferreira, P. Denner, H. Greuner, Daniel Told, M. Weiland, T. Hayward-Schneider, B. Sieglin, A. Buhler, B. Böswirth, A. Krämer-Flecken, F. Jaulmes, J. Galdon-Quiroga, M. Balden, J. Pinzón Acosta, C. Sozzi, T. Bolzonella, G. Neu, Simon Freethy, T. Sehmer, K. Höfler, T. T. Ribeiro, F. Mink, Ursel Fantz, Q. Yang, Jeppe Olsen, M. Wischmeier, P. Mantica, Timothy Goodman, R. Delogu, T. Tala, Panagiotis Tolias, A. Houben, G. Tardini, A. Kirk, T. Odstrcil, R. Fischer, J. Juul Rasmussen, D. Carralero, H. F. Meyer, P. Martin, J. Miettunen, E. Maljaars, Matthew Carr, Z. Yang, G. Pautasso, B. P. Duval, E. Sytova, Stefano Coda, D. Meshcheriakov, Morten Stejner, S. Zoletnik, Thomas Zehetbauer, M. Li, F. Liu, R. Neu, A. Drenik, P. Manz, E. Fable, Otto Asunta, Zhixin Lu, S. Kálvin, Bruce Lipschultz, Vinodh Bandaru, A. Di Siena, Mattia Siccinio, S. Costea, Frank Jenko, Peter Lang, V. Rohde, Manfred Zilker, F. Nabais, H. J. Sun, Chris Hegna, A. Krivska, M. Rott, S. E. Sharapov, Antoine Merle, J. Bernardo, K. Engelhardt, M. Garcia-Munoz, M. Kantor, M. Hölzl, J. M. Santos, L. Guimarais, A. Figuereido, Carlos B. da Silva, Ch. Day, P. David, U. von Toussaint, T. C. Blanken, D. A. Ryan, F. Palermo, Silvio Ceccuzzi, J.-M. Noterdaeme, M. Gobbin, A. Jansen van Vuuren, C.-P. Kasemann, D. Rittich, Wouter Tierens, Taina Kurki-Suonio, C. Martens, R. Riedl, Antti Hakola, A. Czarnecka, F. Hitzler, M. Spolaore, M. Tripský, D. Brida, A. V. Chankin, Alessandro Pau, T. Ilkei, K. Krieger, Emanuele Poli, Florian Laggner, J. F. Rivero-Rodriguez, Wolfgang Jacob, Nengchao Wang, Anne White, S. Kjer Hansen, Stefan Kragh Nielsen, M. Fröschle, R. Bilato, O. Kudlacek, Tobias Görler, A. Stegmeir, Ari Salmi, L. Colas, A. Mlynek, Istvan Cziegler, V. Bobkov, James Buchanan, A. Gräter, T. Luda di Cortemiglia, R. Drube, John Hammer Holm, Giuliana Sias, K. Galazka, Giuseppe Gorini, V. Igochine, B. Vanovac, O. P. Ford, A. Garcia-Carrasco, R. M. McDermott, B. Tal, A. Lebschy, M. Cavedon, Julia Fuchs, E. Viezzer, R. Dux, R.A. Pitts, Svetlana V. Ratynskaia, Aqsa Shabbir, Sergei Kasilov, M. Bernert, S. Saarelma, Gergö Pokol, F. Reimold, Geert Verdoolaege, M. Mayer, Marek Rubel, L. Sanchis-Sanchez, R. Maingi, William Hornsby, U. Plank, C. Cianfarani, N. Vianello, A. Huber, Gustavo Granucci, Didier Mazon, S. Glöggler, J. Simpson, I. Faust, G. L. Ravera, Laurie Porte, Johann Riesch, F. Janky, A Lyssoivan, T. Pütterich, F. Orain, M. Valisa, B. Esposito, C. Gleason-González, Juha Karhunen, M. Valovic, H. Maier, Gábor Cseh, A. Nemes-Czopf, E. Thoren, O. Pan, T. Eich, R. Coelho, M.R. de Baar, E. Strumberger, T. Hellsten, Lionello Marrelli, Boglarka Erdos, Pascale Hennequin, R. Ochoukov, H. Zohm, D. Wagner, Yevgen O. Kazakov, A. Medvedeva, M. G. Dunne, W. Treutterer, N. Leuthold, R. Zagórski, S. Potzel, V. Klevarova, Dirk Reiser, X. Wang, T. Lunt, Meyer, H, Angioni, C, Albert, C, Arden, N, Arredondo Parra, R, Asunta, O, De Baar, M, Balden, M, Bandaru, V, Behler, K, Bergmann, A, Bernardo, J, Bernert, M, Biancalani, A, Bilato, R, Birkenmeier, G, Blanken, T, Bobkov, V, Bock, A, Bolzonella, T, Bortolon, A, Boswirth, B, Bottereau, C, Bottino, A, Van Den Brand, H, Brezinsek, S, Brida, D, Brochard, F, Bruhn, C, Buchanan, J, Buhler, A, Burckhart, A, Camenen, Y, Carlton, D, Carr, M, Carralero, D, Castaldo, C, Cavedon, M, Cazzaniga, C, Ceccuzzi, S, Challis, C, Chankin, A, Chapman, S, Cianfarani, C, Clairet, F, Coda, S, Coelho, R, Coenen, J, Colas, L, Conway, G, Costea, S, Coster, D, Cote, T, Creely, A, Croci, G, Cseh, G, Czarnecka, A, Cziegler, I, D'Arcangelo, O, David, P, Day, C, Delogu, R, De Marne, P, Denk, S, Denner, P, Dibon, M, Di Siena, A, Douai, D, Drenik, A, Drube, R, Dunne, M, Duval, B, Dux, R, Eich, T, Elgeti, S, Engelhardt, K, Erdos, B, Erofeev, I, Esposito, B, Fable, E, Faitsch, M, Fantz, U, Faugel, H, Faust, I, Felici, F, Ferreira, J, Fietz, S, Figuereido, A, Fischer, R, Ford, O, Frassinetti, L, Freethy, S, Froschle, M, Fuchert, G, Fuchs, J, Funfgelder, H, Galazka, K, Galdon-Quiroga, J, Gallo, A, Gao, Y, Garavaglia, S, Garcia-Carrasco, A, Garcia-Munoz, M, Geiger, B, Giannone, L, Gil, L, Giovannozzi, E, Gleason-Gonzalez, C, Gloggler, S, Gobbin, M, Gorler, T, Gomez Ortiz, I, Gonzalez Martin, J, Goodman, T, Gorini, G, Gradic, D, Grater, A, Granucci, G, Greuner, H, Griener, M, Groth, M, Gude, A, Gunter, S, Guimarais, L, Haas, G, Hakola, A, Ham, C, Happel, T, Den Harder, N, Harrer, G, Harrison, J, Hauer, V, Hayward-Schneider, T, Hegna, C, Heinemann, B, Heinzel, S, Hellsten, T, Henderson, S, Hennequin, P, Herrmann, A, Heyn, M, Heyn, E, Hitzler, F, Hobirk, J, Hofler, K, Holzl, M, Hoschen, T, Holm, J, Hopf, C, Hornsby, W, Horvath, L, Houben, A, Huber, A, Igochine, V, Ilkei, T, Ivanova-Stanik, I, Jacob, W, Jacobsen, A, Janky, F, Jansen Van Vuuren, A, Jardin, A, Jaulmes, F, Jenko, F, Jensen, T, Joffrin, E, Kasemann, C, Kallenbach, A, Kalvin, S, Kantor, M, Kappatou, A, Kardaun, O, Karhunen, J, Kasilov, S, Kazakov, Y, Kernbichler, W, Kirk, A, Kjer Hansen, S, Klevarova, V, Kocsis, G, Kohn, A, Koubiti, M, Krieger, K, Krivska, A, Kramer-Flecken, A, Kudlacek, O, Kurki-Suonio, T, Kurzan, B, Labit, B, Lackner, K, Laggner, F, Lang, P, Lauber, P, Lebschy, A, Leuthold, N, Li, M, Linder, O, Lipschultz, B, Liu, F, Liu, Y, Lohs, A, Lu, Z, Luda Di Cortemiglia, T, Luhmann, N, Lunsford, R, Lunt, T, Lyssoivan, A, Maceina, T, Madsen, J, Maggiora, R, Maier, H, Maj, O, Mailloux, J, Maingi, R, Maljaars, E, Manas, P, Mancini, A, Manhard, A, Manso, M, Mantica, P, Mantsinen, M, Manz, P, Maraschek, M, Martens, C, Martin, P, Marrelli, L, Martitsch, A, Mayer, M, Mazon, D, Mccarthy, P, Mcdermott, R, Meister, H, Medvedeva, A, Merkel, R, Merle, A, Mertens, V, Meshcheriakov, D, Meyer, O, Miettunen, J, Milanesio, D, Mink, F, Mlynek, A, Monaco, F, Moon, C, Nabais, F, Nemes-Czopf, A, Neu, G, Neu, R, Nielsen, A, Nielsen, S, Nikolaeva, V, Nocente, M, Noterdaeme, J, Novikau, I, Nowak, S, Oberkofler, M, Oberparleiter, M, Ochoukov, R, Odstrcil, T, Olsen, J, Orain, F, Palermo, F, Pan, O, Papp, G, Paradela Perez, I, Pau, A, Pautasso, G, Penzel, F, Petersson, P, Pinzon Acosta, J, Piovesan, P, Piron, C, Pitts, R, Plank, U, Plaum, B, Ploeckl, B, Plyusnin, V, Pokol, G, Poli, E, Porte, L, Potzel, S, Prisiazhniuk, D, Putterich, T, Ramisch, M, Rasmussen, J, Ratta, G, Ratynskaia, S, Raupp, G, Ravera, G, Refy, D, Reich, M, Reimold, F, Reiser, D, Ribeiro, T, Riesch, J, Riedl, R, Rittich, D, Rivero-Rodriguez, J, Rocchi, G, Rodriguez-Ramos, M, Rohde, V, Ross, A, Rott, M, Rubel, M, Ryan, D, Ryter, F, Saarelma, S, Salewski, M, Salmi, A, Sanchis-Sanchez, L, Santos, J, Sauter, O, Scarabosio, A, Schall, G, Schmid, K, Schmitz, O, Schneider, P, Schrittwieser, R, Schubert, M, Schwarz-Selinger, T, Schweinzer, J, Scott, B, Sehmer, T, Seliunin, E, Sertoli, M, Shabbir, A, Shalpegin, A, Shao, L, Sharapov, S, Sias, G, Siccinio, M, Sieglin, B, Sigalov, A, Silva, A, Silva, C, Silvagni, D, Simon, P, Simpson, J, Smigelskis, E, Snicker, A, Sommariva, C, Sozzi, C, Spolaore, M, Stegmeir, A, Stejner, M, Stober, J, Stroth, U, Strumberger, E, Suarez, G, Sun, H, Suttrop, W, Sytova, E, Szepesi, T, Tal, B, Tala, T, Tardini, G, Tardocchi, M, Teschke, M, Terranova, D, Tierens, W, Thoren, E, Told, D, Tolias, P, Tudisco, O, Treutterer, W, Trier, E, Tripsky, M, Valisa, M, Valovic, M, Vanovac, B, Van Vugt, D, Varoutis, S, Verdoolaege, G, Vianello, N, Vicente, J, Vierle, T, Viezzer, E, Von Toussaint, U, Wagner, D, Wang, N, Wang, X, Weiland, M, White, A, Wiesen, S, Willensdorfer, M, Wiringer, B, Wischmeier, M, Wolf, R, Wolfrum, E, Xiang, L, Yang, Q, Yang, Z, Yu, Q, Zagorski, R, Zammuto, I, Zhang, W, Van Zeeland, M, Zehetbauer, T, Zilker, M, Zoletnik, S, Zohm, H, Meyer, H., Universidad de Sevilla, Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla. RNM138: Física Nuclear Aplicada, Universidad de Sevilla. TEP111: Ingeniería Mecánica, CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Physique des interactions ioniques et moléculaires (PIIM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Plasmas (LPP), 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), Culham Science Centre, Max-Planck-Institut für Plasmaphysik, Department of Applied Physics, Dutch Institute for Fundamental Energy Research, University of Lisbon, Eindhoven University of Technology, National Research Council of Italy, Princeton University, CEA, Forschungszentrum Jülich, Université de Lorraine, CNRS, Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, University of Warwick, Swiss Federal Institute of Technology Lausanne, University of Innsbruck, University of Wisconsin-Madison, Massachusetts Institute of Technology, Hungarian Academy of Sciences, Soltan Institute for Nuclear Studies, University of York, Karlsruhe Institute of Technology, KTH Royal Institute of Technology, University of Seville, University of Milan - Bicocca, Fusion and Plasma Physics, VTT Technical Research Centre of Finland, Vienna University of Technology, Max-Planck Computing and Data Facility, General Atomics, Université Paris-Saclay, Graz University of Technology, Institut für Grenzflachenverfahrenstechnik und Plasmatechnologie, Danmarks Tekniske Universitet, Budapest University of Technology and Economics, Polish Academy of Sciences, Royal Military Academy, Ghent University, ITER Organization, University of California Davis, Polytechnic University of Turin, Barcelona Supercomputing Center, University College Cork, Chalmers University of Technology, University of Cagliari, ITER, CIEMAT, CAS - Institute of Plasma Physics, Max Planck Institute for Plasma Physics, Aalto-yliopisto, Aalto University, Angioni, C., Albert, C. G., Arden, N., Arredondo Parra, R., Asunta, O., De Baar, M., Balden, M., Bandaru, V., Behler, K., Bergmann, A., Bernardo, J., Bernert, M., Biancalani, A., Bilato, R., Birkenmeier, G., Blanken, T. C., Bobkov, V., Bock, A., Bolzonella, T., Bortolon, A., Boswirth, B., Bottereau, C., Bottino, A., Van Den Brand, H., Brezinsek, S., Brida, D., Brochard, F., Bruhn, C., Buchanan, J., Buhler, A., Burckhart, A., Camenen, Y., Carlton, D., Carr, M., Carralero, D., Castaldo, C., Cavedon, M., Cazzaniga, C., Ceccuzzi, S., Challis, C., Chankin, A., Chapman, S., Cianfarani, C., Clairet, F., Coda, S., Coelho, R., Coenen, J. W., Colas, L., Conway, G. D., Costea, S., Coster, D. P., Cote, T. B., Creely, A., Croci, G., Cseh, G., Czarnecka, A., Cziegler, I., D'Arcangelo, O., David, P., Day, C., Delogu, R., De Marne, P., Denk, S. S., Denner, P., Dibon, M., Di Siena, A., Douai, D., Drenik, A., Drube, R., Dunne, M., Duval, B. P., Dux, R., Eich, T., Elgeti, S., Engelhardt, K., Erdos, B., Erofeev, I., Esposito, B., Fable, E., Faitsch, M., Fantz, U., Faugel, H., Faust, I., Felici, F., Ferreira, J., Fietz, S., Figuereido, A., Fischer, R., Ford, O., Frassinetti, L., Freethy, S., Froschle, M., Fuchert, G., Fuchs, J. C., Funfgelder, H., Galazka, K., Galdon-Quiroga, J., Gallo, A., Gao, Y., Garavaglia, S., Garcia-Carrasco, A., Garcia-Munoz, M., Geiger, B., Giannone, L., Gil, L., Giovannozzi, E., Gleason-Gonzalez, C., Gloggler, S., Gobbin, M., Gorler, T., Gomez Ortiz, I., Gonzalez Martin, J., Goodman, T., Gorini, G., Gradic, D., Grater, A., Granucci, G., Greuner, H., Griener, M., Groth, M., Gude, A., Gunter, S., Guimarais, L., Haas, G., Hakola, A. H., Ham, C., Happel, T., Den Harder, N., Harrer, G. F., Harrison, J., Hauer, V., Hayward-Schneider, T., Hegna, C. C., Heinemann, B., Heinzel, S., Hellsten, T., Henderson, S., Hennequin, P., Herrmann, A., Heyn, M. F., Heyn, E., Hitzler, F., Hobirk, J., Hofler, K., Holzl, M., Hoschen, T., Holm, J. H., Hopf, C., Hornsby, W. A., Horvath, L., Houben, A., Huber, A., Igochine, V., Ilkei, T., Ivanova-Stanik, I., Jacob, W., Jacobsen, A. S., Janky, F., Jansen Van Vuuren, A., Jardin, A., Jaulmes, F., Jenko, F., Jensen, T., Joffrin, E., Kasemann, C. -P., Kallenbach, A., Kalvin, S., Kantor, M., Kappatou, A., Kardaun, O., Karhunen, J., Kasilov, S., Kazakov, Y., Kernbichler, W., Kirk, A., Kjer Hansen, S., Klevarova, V., Kocsis, G., Kohn, A., Koubiti, M., Krieger, K., Krivska, A., Kramer-Flecken, A., Kudlacek, O., Kurki-Suonio, T., Kurzan, B., Labit, B., Lackner, K., Laggner, F., Lang, P. T., Lauber, P., Lebschy, A., Leuthold, N., Li, M., Linder, O., Lipschultz, B., Liu, F., Liu, Y., Lohs, A., Lu, Z., Luda Di Cortemiglia, T., Luhmann, N. C., Lunsford, R., Lunt, T., Lyssoivan, A., Maceina, T., Madsen, J., Maggiora, R., Maier, H., Maj, O., Mailloux, J., Maingi, R., Maljaars, E., Manas, P., Mancini, A., Manhard, A., Manso, M. -E., Mantica, P., Mantsinen, M., Manz, P., Maraschek, M., Martens, C., Martin, P., Marrelli, L., Martitsch, A., Mayer, M., Mazon, D., Mccarthy, P. J., Mcdermott, R., Meister, H., Medvedeva, A., Merkel, R., Merle, A., Mertens, V., Meshcheriakov, D., Meyer, O., Miettunen, J., Milanesio, D., Mink, F., Mlynek, A., Monaco, F., Moon, C., Nabais, F., Nemes-Czopf, A., Neu, G., Neu, R., Nielsen, A. H., Nielsen, S. K., Nikolaeva, V., Nocente, M., Noterdaeme, J. -M., Novikau, I., Nowak, S., Oberkofler, M., Oberparleiter, M., Ochoukov, R., Odstrcil, T., Olsen, J., Orain, F., Palermo, F., Pan, O., Papp, G., Paradela Perez, I., Pau, A., Pautasso, G., Penzel, F., Petersson, P., Pinzon Acosta, J., Piovesan, P., Piron, C., Pitts, R., Plank, U., Plaum, B., Ploeckl, B., Plyusnin, V., Pokol, G., Poli, E., Porte, L., Potzel, S., Prisiazhniuk, D., Putterich, T., Ramisch, M., Rasmussen, J., Ratta, G. A., Ratynskaia, S., Raupp, G., Ravera, G. L., Refy, D., Reich, M., Reimold, F., Reiser, D., Ribeiro, T., Riesch, J., Riedl, R., Rittich, D., Rivero-Rodriguez, J. F., Rocchi, G., Rodriguez-Ramos, M., Rohde, V., Ross, A., Rott, M., Rubel, M., Ryan, D., Ryter, F., Saarelma, S., Salewski, M., Salmi, A., Sanchis-Sanchez, L., Santos, J., Sauter, O., Scarabosio, A., Schall, G., Schmid, K., Schmitz, O., Schneider, P. A., Schrittwieser, R., Schubert, M., Schwarz-Selinger, T., Schweinzer, J., Scott, B., Sehmer, T., Seliunin, E., Sertoli, M., Shabbir, A., Shalpegin, A., Shao, L., Sharapov, S., Sias, G., Siccinio, M., Sieglin, B., Sigalov, A., Silva, A., Silva, C., Silvagni, D., Simon, P., Simpson, J., Smigelskis, E., Snicker, A., Sommariva, C., Sozzi, C., Spolaore, M., Stegmeir, A., Stejner, M., Stober, J., Stroth, U., Strumberger, E., Suarez, G., Sun, H. -J., Suttrop, W., Sytova, E., Szepesi, T., Tal, B., Tala, T., Tardini, G., Tardocchi, M., Teschke, M., Terranova, D., Tierens, W., Thoren, E., Told, D., Tolias, P., Tudisco, O., Treutterer, W., Trier, E., Tripsky, M., Valisa, M., Valovic, M., Vanovac, B., Van Vugt, D., Varoutis, S., Verdoolaege, G., Vianello, N., Vicente, J., Vierle, T., Viezzer, E., Von Toussaint, U., Wagner, D., Wang, N., Wang, X., Weiland, M., White, A. E., Wiesen, S., Willensdorfer, M., Wiringer, B., Wischmeier, M., Wolf, R., Wolfrum, E., Xiang, L., Yang, Q., Yang, Z., Yu, Q., Zagorski, R., Zammuto, I., Zhang, W., Van Zeeland, M., Zehetbauer, T., Zilker, M., Zoletnik, S., Zohm, H., ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society, and EUROfusion MST1 Team
Subjects: Magnetic confinement, Edge-localized modes (ELMs), Nuclear engineering, PLASMAS, Nuclear physics, 01 natural sciences, 010305 fluids & plasmas, ASDEX Upgrade, ITER, MODE, Physics, iter, Divertor, magnetic confinement, Magnetic confinement fusion, mode, Dissipation, Condensed Matter Physics, ddc, Tokamak physics, Física nuclear, tokamak physics, Tokamaks, FLUX, Nuclear and High Energy Physics, Technology and Engineering, DEMO, nuclear fusion, Electron cyclotron resonance, Resonant magnetic perturbations, Physics::Plasma Physics, 0103 physical sciences, Nuclear fusion, ddc:530, 010306 general physics, SOLID TUNGSTEN DIVERTOR, Física [Àrees temàtiques de la UPC], demo, plasmas, solid tungsten divertor, flux, ___, HEAVY ALLOYS, Magnetohydrodynamics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], heavy alloys
Abstract: The ASDEX Upgrade (AUG) programme, jointly run with the EUROfusion MST1 task force, continues to significantly enhance the physics base of ITER and DEMO. Here, the full tungsten wall is a key asset for extrapolating to future devices. The high overall heating power, flexible heating mix and comprehensive diagnostic set allows studies ranging from mimicking the scrape-off-layer and divertor conditions of ITER and DEMO at high density to fully non-inductive operation (q95 = 5.5, ) at low density. Higher installed electron cyclotron resonance heating power 6 MW, new diagnostics and improved analysis techniques have further enhanced the capabilities of AUG. Stable high-density H-modes with MW m−1 with fully detached strike-points have been demonstrated. The ballooning instability close to the separatrix has been identified as a potential cause leading to the H-mode density limit and is also found to play an important role for the access to small edge-localized modes (ELMs). Density limit disruptions have been successfully avoided using a path-oriented approach to disruption handling and progress has been made in understanding the dissipation and avoidance of runaway electron beams. ELM suppression with resonant magnetic perturbations is now routinely achieved reaching transiently . This gives new insight into the field penetration physics, in particular with respect to plasma flows. Modelling agrees well with plasma response measurements and a helically localised ballooning structure observed prior to the ELM is evidence for the changed edge stability due to the magnetic perturbations. The impact of 3D perturbations on heat load patterns and fast-ion losses have been further elaborated. Progress has also been made in understanding the ELM cycle itself. Here, new fast measurements of and Er allow for inter ELM transport analysis confirming that Er is dominated by the diamagnetic term even for fast timescales. New analysis techniques allow detailed comparison of the ELM crash and are in good agreement with nonlinear MHD modelling. The observation of accelerated ions during the ELM crash can be seen as evidence for the reconnection during the ELM. As type-I ELMs (even mitigated) are likely not a viable operational regime in DEMO studies of 'natural' no ELM regimes have been extended. Stable I-modes up to have been characterised using -feedback. Core physics has been advanced by more detailed characterisation of the turbulence with new measurements such as the eddy tilt angle—measured for the first time—or the cross-phase angle of and fluctuations. These new data put strong constraints on gyro-kinetic turbulence modelling. In addition, carefully executed studies in different main species (H, D and He) and with different heating mixes highlight the importance of the collisional energy exchange for interpreting energy confinement. A new regime with a hollow profile now gives access to regimes mimicking aspects of burning plasma conditions and lead to nonlinear interactions of energetic particle modes despite the sub-Alfvénic beam energy. This will help to validate the fast-ion codes for predicting ITER and DEMO. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014–2018 and 2019–2020 under grant agreement No. 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. "Article signat per més de 100 autors/es: H. Meyer, for the AUG Team: D. Aguiam, C. Angioni, C.G. Albert, N. Arden, R. Arredondo Parra, O. Asunta, M. de Baar, M. Balden, V. Bandaru, K. Behler, A. Bergmann, J. Bernardo, M. Bernert, A. Biancalani, R. Bilato, G. Birkenmeier, T.C. Blanken, V. Bobkov, A. Bock, T. Bolzonella, A. Bortolon, B. Böswirth, C. Bottereau, A. Bottino, H. van den Brand, S. Brezinsek, D. Brida, F. Brochard, C. Bruhn, J. Buchanan, A. Buhler, A. Burckhart, Y. Camenen, D. Carlton, M. Carr, D. Carralero, C. Castaldo, M. Cavedon, C. Cazzaniga, S. Ceccuzzi, C. Challis, A. Chankin, S. Chapman, C. Cianfarani, F. Clairet, S. Coda, R. Coelho, J.W. Coenen, L. Colas, G.D. Conway, S. Costea, D.P. Coster, T.B. Cote, A. Creely, G. Croci, G. Cseh, A. Czarnecka, I. Cziegler, O. D'Arcangelo, P. David, C. Day, R. Delogu, P. de Marné, S.S. Denk, P. Denner, M. Dibon, A. Di Siena, D. Douai, A. Drenik, R. Drube, M. Dunne, B.P. Duval, R. Dux, T. Eich, S. Elgeti, K. Engelhardt, B. Erdös, I. Erofeev, B. Esposito, E. Fable, M. Faitsch, U. Fantz, H. Faugel, I. Faust, F. Felici, J. Ferreira, S. Fietz, A. Figuereido, R. Fischer, O. Ford, L. Frassinetti, S. Freethy, M. Fröschle, G. Fuchert, J.C. Fuchs, H. Fünfgelder, K. Galazka, J. Galdon-Quiroga, A. Gallo, Y. Gao, S. Garavaglia, A. Garcia-Carrasco, M. Garcia-Muñoz, B. Geiger, L. Giannone, L. Gil, E. Giovannozzi, C. Gleason-González, S. Glöggler, M. Gobbin, T. Görler, I. Gomez Ortiz, J. Gonzalez Martin, T. Goodman, G. Gorini, D. Gradic, A. Gräter, G. Granucci, H. Greuner, M. Griener, M. Groth, A. Gude, S. Günter, L. Guimarais, G. Haas, A.H. Hakola, C. Ham, T. Happel, N. den Harder, G.F. Harrer, J. Harrison, V. Hauer, T. Hayward-Schneider, C.C. Hegna, B. Heinemann, S. Heinzel, T. Hellsten, S. Henderson, P. Hennequin, A. Herrmann, M.F. Heyn, E. Heyn, F. Hitzler, J. Hobirk, K. Höfler, M. Hölzl, T. Höschen, J.H. Holm, C. Hopf, W.A. Hornsby, L. Horvath, A. Houben, A. Huber, V. Igochine, T. Ilkei, I. Ivanova-Stanik, W. Jacob, A.S. Jacobsen, F. Janky, A. Jansen van Vuuren, A. Jardin, F. Jaulmes, F. Jenko, T. Jensen, E. Joffrin, C.-P. Käsemann, A. Kallenbach, S. Kálvin, M. Kantor, A. Kappatou, O. Kardaun, J. Karhunen, S. Kasilov,, Y. Kazakov, W. Kernbichler, A. Kirk, S. Kjer Hansen, V. Klevarova, G. Kocsis, A. Köhn, M. Koubiti, K. Krieger, A. Krivska, A. Krämer-Flecken, O. Kudlacek, T. Kurki-Suonio, B. Kurzan, B. Labit, K. Lackner, F. Laggner, P.T. Lang, P. Lauber, A. Lebschy, N. Leuthold, M. Li, O. Linder, B. Lipschultz, F. Liu, Y. Liu, A. Lohs, Z. Lu, T. Luda di Cortemiglia, N.C. Luhmann, R. Lunsford, T. Lunt, A. Lyssoivan, T. Maceina, J. Madsen, R. Maggiora, H. Maier, O. Maj, J. Mailloux, R. Maingi, E. Maljaars, P. Manas, A. Mancini, A. Manhard, M.-E. Manso, P. Mantica, M. Mantsinen, P. Manz, M. Maraschek, C. Martens, P. Martin, L. Marrelli, A. Martitsch, M. Mayer, D. Mazon, P.J. McCarthy, R. McDermott, H. Meister, A. Medvedeva, R. Merkel, A. Merle, V. Mertens, D. Meshcheriakov, O. Meyer, J. Miettunen, D. Milanesio, F. Mink, A. Mlynek, F. Monaco, C. Moon, F. Nabais, A. Nemes-Czopf, G. Neu, R. Neu, A.H. Nielsen, S.K. Nielsen, V. Nikolaeva, M. Nocente, J.-M. Noterdaeme, I. Novikau, S. Nowak, M. Oberkofler, M. Oberparleiter, R. Ochoukov, T. Odstrcil, J. Olsen, F. Orain, F. Palermo, O. Pan, G. Papp, I. Paradela Perez, A. Pau, G. Pautasso, F. Penzel, P. Petersson, J. Pinzón Acosta, P. Piovesan, C. Piron, R. Pitts, U. Plank, B. Plaum, B. Ploeckl, V. Plyusnin, G. Pokol, E. Poli, L. Porte, S. Potzel, D. Prisiazhniuk, T. Pütterich, M. Ramisch, J. Rasmussen, G.A. Rattá, S. Ratynskaia, G. Raupp, G.L. Ravera, D. Réfy, M. Reich, F. Reimold, D. Reiser, T. Ribeiro, J. Riesch, R. Riedl, D. Rittich, J.F. Rivero-Rodriguez, G. Rocchi, M. Rodriguez-Ramos, V. Rohde, A. Ross1, M. Rott, M. Rubel, D. Ryan, F. Ryter, S. Saarelma, M. Salewski, A. Salmi, L. Sanchis-Sanchez, J. Santos, O. Sauter, A. Scarabosio, G. Schall, K. Schmid, O. Schmitz, P.A. Schneider, R. Schrittwieser, M. Schubert, T. Schwarz-Selinger, J. Schweinzer, B. Scott, T. Semer, E. Seliunin, M. Sertoli, A. Shabbir, A. Shalpegin, L. Shao, S. Sharapov, G. Sias, M. Siccinio, B. Sieglin, A. Sigalov, A. Silva, C. Silva, D. Silvagni, P. Simon, J. Simpson, E. Smigelskis, A. Snicker, C. Sommariva, C. Sozzi, M. Spolaore, A. Stegmeir, M. Stejner, J. Stober, U. Stroth, E. Strumberger, G. Suarez, H.-J. Sun, W. Suttrop, E. Sytova, T. Szepesi, B. Tál, T. Tala, G. Tardini, M. Tardocchi, M. Teschke, D. Terranova, W. Tierens, E. Thorén, D. Told, P. Tolias, O. Tudisco, W. Treutterer, E. Trier, M. Tripský, M. Valisa, M. Valovic, B. Vanovac, D. van Vugt, S. Varoutis, G. Verdoolaege, N. Vianello, J. Vicente, T. Vierle, E. Viezzer, U. von Toussaint, D. Wagner, N. Wang, X. Wang, M. Weiland, A.E. White, S. Wiesen, M. Willensdorfer, B. Wiringer, M. Wischmeier, R. Wolf, E. Wolfrum, L. Xiang, Q. Yang, Z. Yang, Q. Yu, R. Zagórski, I. Zammuto, W. Zhang, M. van Zeeland, T. Zehetbauer, M. Zilker, S. Zoletnik, H. Zohm and the EUROfusion MST1 Team55
Published: 2018
Full Text: View/download PDF

6. Benchmarking 2D against 3D FDTD codes in the assessment of reflectometry performance in fusion devices

Author: Stéphane Heuraux, T. T. Ribeiro, F. da Silva, E. Ricardo, A. Silva, Instituto de Plasmas e Fusão Nuclear [Lisboa] (IPFN), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Max-Planck-Institut für Plasmaphysik [Garching] (IPP)
Subjects: Fusion, Tokamak, 010308 nuclear & particles physics, Computer science, Finite-difference time-domain method, Benchmarking, 01 natural sciences, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Computer engineering, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], law, 0103 physical sciences, Code (cryptography), Benchmark (computing), Reflectometry, Instrumentation, Mathematical Physics
Abstract: International audience; Reflectometry is foreseen in the coming generation of tokamaks such as DTT, ITER and DEMO, creating a need to predict the behavior and capabilities of these new reflectometry systems through the used of synthetic diagnostics. The FDTD time-dependent codes use to implement synthetic diagnostics are computational demanding, the reason why 2 dimensional codes (as REFMUL or REFMULF) are used. REFMUL3, a newly developed performing parallel code gives access to 3D simulations, although at a much higher cost than the 2D ones. With this work we begin a benchmark e ort to assess the main di erences and compromises done when using 2D versus 3D.
Published: 2019
Full Text: View/download PDF

7. Gyrofluid computation of magnetic perturbation effects on turbulence and edge localized bursts

Author: J. Peer, Bruce D. Scott, T. T. Ribeiro, and Alexander Kendl
Subjects: Convection, Physics, Nuclear and High Energy Physics, Tokamak, Turbulence, FOS: Physical sciences, Plasma, Mechanics, Condensed Matter Physics, 01 natural sciences, Ballooning, Physics - Plasma Physics, 010305 fluids & plasmas, law.invention, Plasma Physics (physics.plasm-ph), Nonlinear system, Pedestal, Amplitude, law, Physics::Plasma Physics, 0103 physical sciences, 010306 general physics
Abstract: The effects of non-axisymmetric resonant magnetic perturbation fields (RMPs) on saturated drift-wave turbulence and on ballooning mode bursts in the edge pedestal of tokamak plasmas are investigated by numerical simulations with a nonlinear six-moment electromagnetic gyrofluid model including zonal profile evolution. The vacuum RMP fields are screened by plasma response currents, so that magnetic transport by perturbed parallel motion is not significantly changed. Radial transport of both particles and heat is dominated by turbulent convection even for large RMP amplitudes, where formation of stationary convective structures leads to edge profile degradation. Modelling of ideal ballooning mode unstable edge profiles for single bursts including RMP fields causes resonant mode locking and destabilization.
Published: 2017
Full Text: View/download PDF

8. Turbulence level effects on conventional reflectometry using 2D full-wave simulations

Author: F. da Silva, T. T. Ribeiro, G. D. Conway, Stéphane Heuraux, José Vicente, Carlos A. Silva, Institut Jean Lamour (IJL), and Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Turbulence, Plasma, 01 natural sciences, 010305 fluids & plasmas, Computational physics, symbols.namesake, Amplitude, Orders of magnitude (time), [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], Physics::Plasma Physics, 0103 physical sciences, symbols, Wavenumber, 010306 general physics, Reflectometry, Instrumentation, Doppler effect, Doppler broadening
Abstract: International audience; Numerical simulations are critical in improving the capabilities of microwave diagnostics. In this work, the 2D finite-difference time-domain full-wave code REFMUL was applied to broadband turbulent plasmas using the conventional reflectometry setup. Simulations were performed with O-mode waves, fixed frequency probing, and I/Q detection. The plasma density, determining O-mode propagation , was modeled as the sum of a slab background plasma with a fluctuating component following a Kolmogorov-like amplitude k-spectrum. The density turbulence level δn e /n e was scanned over several orders of magnitude for simulated plasma flows of constant plasma velocity in either the radial or the poloidal direction. Simulations show trends, such as spectral broadening of the complex A(t)e iϕ(t) signals and increasing fluctuations in A(t) and ϕ(t) with increasing δn e /n e , that are similar for both plasma flow directions. These together with possibilities to reconstruct a poloidal wavenumber spectrum are discussed in view of extending the measuring capabilities. The onset of non-linear effects associated with phase runaway, as previously observed with other 1D and 2D codes, as well as radial Doppler effects is also observed and discussed. https://doi.
Published: 2018
Full Text: View/download PDF

9. gGEM: A Gyrofluid Model to be Used on Distributed Platforms

Author: T. T. Ribeiro, Bruce D. Scott, Manuel Rodríguez-Pascual, Francisco Castejón Magaña, and Rafael García
Subjects: Physics, Nuclear and High Energy Physics, Correctness, business.industry, Electrical engineering, Magnetic confinement fusion, Fault tolerance, Fusion power, Condensed Matter Physics, Grid, Computational science, Energy conservation, Physics::Plasma Physics, Scalability, Distributed memory, business
Abstract: The study of core turbulence represents a key line of research in fusion plasmas. By adding collisions and electromagnetic induction to the parallel dynamics of the standard six-moment toroidal model, it is possible to study the gyrofluid electromagnetic phenomena in the context of edge turbulence with the GEM code. Currently, the code describes the fluctuation free-energy conservation in a gyrofluid model by means of the polarization equation which relates the ExB flow and eddy energy to the combinations of the potential, the density, and the perpendicular temperature. To do so, supercomputers have been used only to date. In this paper, we demonstrate its feasibility as a cluster application on a production environment based on any kind of distributed memory, enhancing in this way its scope. The scalability (which grows linearly with a correlation factor of 0.99978) and the correctness of our solution with respect to the previous GEM version have been evaluated in a local cluster of 88 nodes. The fault tolerance and the Grid suitability have been demonstrated by executing our application in the EUrope Fusion for ITER Applications infrastructure by adapting the code to this paradigm and by improving its parallel Grid performance. It can be employed on its own or belonging to workflows in order to perform a wider more complex analysis of fusion reactors.
Published: 2010
Full Text: View/download PDF

10. Nonlinear Dynamics in the Tokamak Edge

Author: Bruce D. Scott, Alexander Kendl, and T. T. Ribeiro
Subjects: Physics, Conservation law, Tokamak, Turbulence, Magnetic confinement fusion, Fluid mechanics, Condensed Matter Physics, Instability, law.invention, Nonlinear system, Physics::Plasma Physics, law, Statistical physics, Magnetohydrodynamics
Abstract: The nonlinear character of the tokamak edge results from a unique combination of parameters, leading to a wide dynamical range for most processes. The energetically consistent gyrokinetic equilibrium is emphasised. Edge turbulence computed gyrokinetically exhibits energetic contact to mesoscale MHD and does not follow linear scaling. Gyrofluid studies show self consistent profiles, currents and flows which are kicked out of equilibrium to varying degree. L-mode turbulence and ELM crash phenomenology are both examples of energetic contact between turbulence and MHD, with opposite causality. The overall equilibrium is a statistical saturation rather than a state to which the plasma dissipatively converges (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Published: 2010
Full Text: View/download PDF

11. Progress in edge plasma transport modeling on JET

Author: G. Corrigan, Anders Nielsen, W. Fundamenski, Markus Airila, Detlev Reiter, Volker Naulin, Xavier Bonnin, D. P. Coster, J. Juul Rasmussen, T. T. Ribeiro, J. D. Strachan, M. Wischmeier, A. V. Chankin, E. Tsitrone, B. Gulejova, S.K. Erents, S. Glowacz, Fabio Subba, R. Zagórski, Odd Erik Garcia, Vladislav Kotov, C. Konz, S. Wiesen, R.A. Pitts, Bruce D. Scott, David Tskhakaya, A. Kirschner, Efda Jet Contributors, P. Belo, and G. Kirnev
Subjects: Physics, Nuclear physics, modelling, Jet (fluid), Web of science, SOL, Divertor, divertor, ELM, Plasma, Edge (geometry), Condensed Matter Physics
Abstract: Recent progress in edge plasma modeling on the JET tokamak is briefly, and somewhat selectively, reviewed. This ongoing modeling activity is aimed at developing a predictive capability for ITER based on numerical models verified and validated upon JET experimental data. Topics include both steady‐state and transient particle and power exhaust, the effect of edge/SOL turbulence and edge localized modes, and first wall material migration.
Published: 2008
Full Text: View/download PDF

12. Tokamak turbulence computations on closed and open magnetic flux surfaces

Author: T. T. Ribeiro and Bill Scott
Subjects: Physics, Debye sheath, Field line, K-epsilon turbulence model, Turbulence, Magnetic confinement fusion, K-omega turbulence model, Mechanics, Condensed Matter Physics, Magnetic flux, symbols.namesake, Classical mechanics, Nuclear Energy and Engineering, Physics::Plasma Physics, symbols, Debye
Abstract: We study turbulence on closed and open flux surfaces in a comparative manner using the three-dimensional electromagnetic gyrofluid turbulence code GEM. A magnetic field on a tokamak is doubly periodic and sheared. This leads to the so-called field line connection, which ensures a finite parallel response for every degree of freedom. In contrast, in the scrape-off layer (SOL), the field lines end on plates, breaking this constraint and allowing the existence of convective cell modes. Since the parallel electron response provides a path to dissipation, whether or not it is allowed to vanish is important. For the SOL case, a standard Debye sheath model is used to provide the parallel boundary conditions. A zero loss model (no fluxes into the plates) is also used to assess the importance of the Debye currents. Turbulence on closed and open flux surfaces at the same parameters is found to be very different, a property which basic transport models should take into account.
Published: 2005
Full Text: View/download PDF

13. Origin and turbulence spreading of plasma blobs

Author: H. W. Müller, T. T. Ribeiro, P. Manz, D. Carralero, G. Birkenmeier, Bruce D. Scott, E. Wolfrum, Stefan Müller, G. Fuchert, and Ulrich Stroth
Subjects: Physics, Turbulence, Separatrix, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Plasma, Mechanics, Condensed Matter Physics, Asymmetry, Instability, Two-stream instability, Classical mechanics, Physics::Plasma Physics, Skewness, Electric field, Physics::Space Physics, media_common
Abstract: The formation of plasma blobs is studied by analyzing their trajectories in a gyrofluid simulation in the vicinity of the separatrix. Most blobs arise at the maximum radial electric field outside the separatrix. In general, blob generation is not bound to one particular radial position or instability. A simple model of turbulence spreading for the scrape-off layer is derived. The simulations show that the blob dynamics can be represented by turbulence spreading, which constitutes a substantial energy drive for far scrape-off layer turbulence and is a more suitable quantity to study blob generation compared to the skewness.
Published: 2015

14. Turbulence reduction in internal transport barriers on ASDEX Upgrade

Author: B. Kurzan, J. Hobirk, T T Ribeiro, H. Meister, H. W. Müller, W. Suttrop, A. G. Peeters, A. C. C. Sips, A. Gude, R. C. Wolf, O. Gruber, F. Serra, Garrard Conway, M. Maraschek, and Sibylle Günter
Subjects: Shearing (physics), Toroid, Tokamak, Materials science, Turbulence, Mechanics, Condensed Matter Physics, law.invention, Physics::Fluid Dynamics, Nuclear Energy and Engineering, ASDEX Upgrade, Physics::Plasma Physics, law, Rotation velocity, Plasma diagnostics, Atomic physics, Linear growth
Abstract: A reduction in turbulent density fluctuations is observed in internal transport barrier (ITB) discharges in the ASDEX Upgrade tokamak with an L-mode edge and reversed magnetic shear. The turbulence reduction is localized spatially to around the ITB gradient and the ITB foot-point region, coincident with strong shearing in the toroidal rotation velocity. The radial extent and degree of reduction is related to the strength of the ITB. Strong (narrow and steep) ITBs are well localized and display greater turbulence reduction. Weaker ITBs are less localized with less reduction. The formation of a subsequent H-mode edge barrier moves the velocity shearing region to the edge and weakens the ITB to the point of extinction. During the ITB the turbulence is reduced across a broad frequency range, however a residual level of low-frequency fluctuations (f
Published: 2001
Full Text: View/download PDF

15. From GEM to gGEM

Author: Manuel Rodríguez-Pascual, Bruce D. Scott, T. T. Ribeiro, Rafael Mayo, and Francisco Castejón
Subjects: Correctness, Computer science, Fault tolerance, Fusion power, Grid, computer.software_genre, Computational science, Electromagnetic induction, Grid computing, Physics::Plasma Physics, Scalability, Distributed memory, computer, Simulation
Abstract: The gyrofluid electromagnetic (GEM) model studies the phenomena in the context of edge turbulence, a matter of adding collisions and electromagnetic induction to the parallel dynamics of the standard six-moment toroidal model, the use of which was done in core turbulence works. Currently, the code describes the fluctuation free-energy conservation in a gyrofluid model by means of the polarization equation which relates ExB flow and eddy energy to combinations of the potential and the density and perpendicular temperature. To the date, GEM has usually been run on high performance computers. In this work we demonstrate its feasibility as a cluster application in a production environment based on any kind of distributed memory. The scalability and correctness of our solution has been evaluated in a local cluster. Fault tolerance and Grid suitability has been demonstrated by executing our application in the EUFORIA (EUrope Fusion fOR ITER Applications) Grid infrastructure. With this work, the fusion community is provided with a new tool to simulate plasma phenomena on the Grid. It can be employed on its own or belonging to workflows, in order to perform wider, more complex analysis of fusion reactors
Published: 2010
Full Text: View/download PDF

16. Conformal Tokamak Geometry for Turbulence Computations

Author: Bruce D. Scott and T. T. Ribeiro
Subjects: Physics, Nuclear and High Energy Physics, Tokamak, Turbulence, Field line, Coordinate system, K-omega turbulence model, Condensed Matter Physics, Magnetic flux, law.invention, Multigrid method, Classical mechanics, Position (vector), law, Physics::Space Physics
Abstract: Turbulence in magnetized plasma, with particle gyroradii that are small compared to the device size, consists of 2-D dynamically incompressible fluidlike turbulence in planes perpendicular to the magnetic field and of compressible wavelike dynamics parallel to it. A strong anisotropy between the perpendicular and parallel scales of motion results. The natural coordinates are, therefore, those which follow the field lines. The deformational issues which result from the magnetic shear and variation of the distance between the magnetic flux surfaces with a position are treated by judicious choices of the coordinate representation. We elucidate the methods by which, in turn, the deformation induced by the shear and, then, by the shaping is remedied. Both the physical and computational considerations are treated since the grid isotropicity best represents the small-scale turbulence and, at the same time, facilitates the multigrid solution of the elliptic equations which are part of the overall system. We present the details of the conformal coordinate system and its implementation, together with an example of its calculation for a realistic tokamak equilibrium case.
Published: 2010

17. Plasma wall interaction and its implication in an all tungsten divertor tokamak

Author: Emanuele Poli, Y. R. Martin, L. Fattorini, Fernando Meo, M. Sertoli, G. Tardini, M. Garcia Munoz, T T Ribeiro, Qiang Yu, E. Vainonen-Ahlgren, Laure Vermare, G. Haas, K. Lackner, W. Sandmann, O. J. W. F. Kardaun, M. Rott, R. Merkel, K.-H. Steuer, Piero Martin, A. Kallenbach, P. de Marne, K. Gál, Alberto Bottino, N. Hicks, M. Gemisic-Adamov, Michael Kaufmann, Bruce D. Scott, A. Gude, J. Stober, H. Zohm, V. Mertens, H. D. Murmann, C. V. Atanasiu, K.H. Behringer, D. Wagner, V. Igochine, J.-M. Noterdaeme, Th. Pütterich, K. Sassenberg, A. Flaws, M. Püschel, F. Serra, G. Neu, H. Kollotzek, A. Bergmann, R. Pugno, H. W. Müller, W. Schustereder, K. McCormick, H. Meister, H. Greuner, R. Bilato, M. Huart, Wolf-Dieter Schneider, A. Lohs, R. Schrittwieser, W. Becker, F. Ryter, F. Merz, V. Bobkov, H. F. Meyer, M. Mlynek, Julia Fuchs, M. Mayer, C. F. Maggi, D. Holtum, F. Braun, Peter Lang, J. Hobirk, Taina Kurki-Suonio, A. C. C. Sips, S. da Graca, W. Suttrop, M. Balden, Marco Brambilla, T. Eich, H. Maier, J. M. Santos, M. Wischmeier, C. Tröster, Garrard Conway, E. Würsching, B. Nold, T. Bertoncelli, B. Reiter, M. Zilker, Ana Elisa Bauer de Camargo Silva, Ch. Hopf, C. Angioni, Sibylle Günter, A. Stäbler, R. Riedl, E. Speth, G. Kocsis, Thomas Zehetbauer, Philipp Lauber, S. Kálvin, J. Schirmer, G. V. Pereverzev, K. Engelhardt, C. Tichmann, E. Wolfrum, P. Varela, A. Manini, Patrick J. McCarthy, J. Harhausen, J. Roth, S. Gori, H.-U. Fahrbach, A. Scarabosio, Bernd Heinemann, L. D. Horton, M. E. Manso, Lin Liu, A. Schmid, P. Merkel, Rudolf Neu, D. Yadikin, L. Giannone, C. Konz, M. Maraschek, F. Monaco, E. Strumberger, R. Fischer, J. Fink, K. Mank, S. Dietrich, G. Pautasso, R. Drube, R. Dux, V. Rohde, A. Sigalov, A. Buhler, Martin Laux, Jari Likonen, D. P. Coster, J. Schweinzer, L. Urso, G. Schall, D. Zasche, Ursel Fantz, G. Schramm, A. V. Chankin, K. Behler, Gerhard Raupp, K. Krieger, O. Gruber, K. Dimova, S. Schweizer, J. Neuhauser, A. Herrmann, M. Reich, B. Kurzan, P. Franzen, U. Seidel, M. Kick, and W. Treutterer
Subjects: Tokamak, Materials science, Divertor, Facing Components, Transport, chemistry.chemical_element, Flux, Plasma, Effective radiated power, Tungsten, Condensed Matter Physics, law.invention, Nuclear Energy and Engineering, Alcator C-Mod, chemistry, ASDEX Upgrade, Erosion, law, Iter-Like Wall, Atomic physics, Asdex Upgrade Divertor, Operation
Abstract: ASDEX Upgrade has recently finished its transition towards an all-W divertor tokamak, by the exchange of the last remaining graphite tiles to W-coated ones. The plasma start-up was performed without prior boronization. It was found that the large He content in the plasma, resulting from DC glow discharges for conditioning, leads to a confinement reduction. After the change to D glow for inter-shot conditioning, the He content quickly dropped and, in parallel, the usual H-Mode confinement with H factors close to one was achieved. After the initial conditioning phase, oxygen concentrations similar to that in previous campaigns with boronizations could be achieved. Despite the removal of all macroscopic carbon sources, no strong change in C influxes and C content could be observed so far. The W concentrations are similar to the ones measured previously in discharges with old boronization and only partial coverage of the surfaces with W. Concomitantly it is found that although the W erosion flux in the divertor is larger than the W sources in the main chamber in most of the scenarios, it plays only a minor role for the W content in the main plasma. For large antenna distances and strong gas puffing, ICRH power coupling could be optimized to reduce the W influxes. This allowed a similar increase of stored energy as yielded with comparable beam power. However, a strong increase of radiated power and a loss of H-Mode was observed for conditions with high temperature edge plasma close to the antennas. The use of ECRH allowed keeping the central peaking of the W concentration low and even phases of improved H-modes have already been achieved.
Published: 2007
Full Text: View/download PDF

18. Experimental turbulence studies for gyro-kinetic code validation using advanced microwave diagnostics

Author: B. Plaum, Z. Huang, L. Porte, Uwe Siart, Thomas F. Eibert, T. T. Ribeiro, A. Storelli, Bruce D. Scott, T. Estrada, G. D. Conway, Carsten Lechte, A. Banon Navarro, Laure Vermare, A. Krämer-Flecken, Alessandro Biancalani, Frank Jenko, E. Blanco, W. Kasparek, A. Medvedeva, D. Molina, M. E. Manso, Tobias Görler, Ö. Gürcan, Stefano Coda, P. Simon, P. Manz, S. Wolf, C. Koenen, Ulrich Stroth, A. Fasoli, Pascale Hennequin, D. Prisiazhniuk, L. Guimarais, F. Clairet, V. Nikolaeva, T. Happel, C. Bottereau, 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), 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), and ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society
Subjects: Physics, Nuclear and High Energy Physics, Turbulence, Flow (psychology), Plasma, Collisionality, Condensed Matter Physics, Kinetic energy, Computational physics, ASDEX Upgrade, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], Physics::Plasma Physics, Statistical physics, Reflectometry, Microwave
Abstract: For a comprehensive comparison with theoretical models and advanced numerical turbulence simulations, a large spectrum of fluctuation parameters was measured on the devices ASDEX Upgrade, TCV, and Tore-Supra. Radial profiles of scale-resolved turbulence levels in H-mode discharges are measured and compared with GENE simulations in the transition range from ion-temperature-gradient to trapped-electron-mode turbulence. Correlation reflectometry is used to study the microscopic structure of turbulence and GAMs in discharges where poloidal flow damping was varied by means of variations of the shape of the poloidal plasma cross-section and collisionality. Full-wave codes and synthetic diagnostics are applied for the interpretation of the data.
Published: 2015
Full Text: View/download PDF

19. Morphometric dimensions of the mouse parotid glands of both sexes

Author: T T, Ribeiro, T M, Cestari, and R, Taga
Subjects: Male, Mice, Sex Characteristics, Animals, Parotid Gland, Cell Count, Female, Cell Size
Abstract: The goal of this research was to evaluate the morphometric dimensions of the different structures of male and female albino mouse parotid glands. The following morphometric dimensions were evaluated for the acini, intercalated ducts, striated ducts, excretory ducts and stroma: volume density, total compartmental volume, surface density, total external surface, surface-to-volume ratio, cell volume and absolute number of cells. Analysis of the results showed that the parotid gland mass was 43.7% greater (P0.01) in the male mice than in the females. This difference was due to the fact that the compartmental volumes of the acini, intercalated ducts and striated ducts were markedly higher in the male mice, 57.6% (P0.01), 253.1% (P0.01) and 91.1% (P0.05), respectively. The higher volume of the acinar morphological compartment was due to the total number of cells and average cell volume being higher in the male mice, 24.8% P0.01) and 47.7% (P0.01), respectively. Based on the results obtained, it was concluded that there are morphological differences between male and female parotid glands. These differences are detectable through morphometry, mainly in the morphological acinar and intercalated ducts compartments, which are more developed in male mice.
Published: 2001

20. Seroepidemiology of human T-cell lymphotropic virus type I/II in northeastern Brazil

Author: E D, Moreira, T T, Ribeiro, P, Swanson, C, Sampaio Filho, A, Melo, C, Brites, R, Badaró, G, Toedter, H, Lee, and W, Harrington
Subjects: Adult, Aged, 80 and over, Male, Acquired Immunodeficiency Syndrome, Adolescent, Age Factors, Middle Aged, HTLV-I Infections, HTLV-I Antibodies, HTLV-II Antibodies, Sex Factors, Pregnancy, Risk Factors, HTLV-II Infections, Prevalence, Humans, Tuberculosis, Female, Substance Abuse, Intravenous, Brazil, Aged
Abstract: We investigated the prevalence of human T-lymphotropic virus I/II (HTLV-I/II) infection in Bahia, a state in Northeastern Brazil. Healthy individuals (n = 327) and patients (n = 337) with a variety of diseases were screened for antibodies to HTLV-I/II using an enzyme immunoassay and Western blot. The overall prevalence among healthy subjects was 1.8% (six of 327); among patients it was 18.4% (62 of 337). Patients with AIDS had the highest prevalence of HTLV-I/II infection, 22.7% (20/88), followed by randomly selected patients from an infectious disease hospital, 19.4% (25 of 129), and tuberculosis patients, 11.1% (10 of 90). Four of 14 patients with myelopathy and three of 16 patients with lymphoid leukemia or lymphoma were seropositive for HTLV-I/II. Sixty-three of 68 HTLV-I/II-positive specimens were then typed: 53 patients were HTLV-I positive, three patients were HTLV-II positive, and in seven patients the assay could not distinguish infection by HTLV-I or II. The finding among HIV-seropositive intravenous drug users in Bahia of coinfection with HTLV-I is contrasted with reports from other areas in which dual infection occurs with HTLV-II. Although high prevalence of HTLV-I infection was found in Bahia, the extent and clinical manifestations of HTLV-I/II infection in Brazil remains imprecisely defined, and further studies are needed.
Published: 1993

21. Serologic validation of HIV infection in a tropical area

Author: T T, Ribeiro, C, Brites, E D, Moreira, K, Siller, N, Silva, W D, Johnson, and R, Badaro
Subjects: Male, Acquired Immunodeficiency Syndrome, Pregnancy, Tropical Medicine, Blotting, Western, Humans, Enzyme-Linked Immunosorbent Assay, Female, HIV Infections, Sensitivity and Specificity, Brazil
Abstract: We have defined human immunodeficiency virus type 1 (HIV-1) serologic reactivity in Brazilians living in an area endemic for tropical diseases. Enzyme-linked immunosorbent assay (ELISA) and Western blot (WB) analyses were performed on 342 patients with diseases including Chagas' disease, schistosomiasis, typhoid fever, helminthiasis, and cutaneous and visceral leishmaniasis. Nine percent of the visceral leishmaniasis patients' sera reacted in the HIV-1 ELISA but all were WB negative. All other sera from these patients were HIV negative. A total of 224 HIV-1 ELISA repeatedly positive sera also were HIV-1 WB tested. They were drawn from a total population of 19,230 individuals, including AIDS patients, blood donors, homosexual men, intravenous drug users, pregnant women, individuals with hemophiliac, and tuberculosis and sexually transmitted disease patients. The WB results were analyzed using five different interpretive criteria for WB positivity. The Centers for Disease Control (CDC) and the World Health Organization (WHO) criteria were the most sensitive and specific for identifying HIV-1-infected individuals. The WB pattern was similar to that seen in the United States. Envelope (ENV) protein antibodies were highly predictive of HIV-1 infection; none of the AIDS patients lacked ENV protein reactivity. We conclude that among the tropical diseases studied, only visceral leishmaniasis is associated with false-positive HIV-1 ELISA tests. Current CDC and WHO criteria for interpretation of HIV-1 WB tests are appropriate for Brazil.
Published: 1993

22. Gyrokinetic and gyrofluid investigation of magnetic islands in tokamaks

Author: Mattia Siccinio, A. G. Peeters, William Hornsby, Emanuele Poli, T. T. Ribeiro, Alberto Bottino, and Bruce D. Scott
Subjects: Physics, Tokamak, Gyroradius, Turbulence, Plasma, Mechanics, Electron, Condensed Matter Physics, Rotation, Instability, law.invention, Coupling (physics), Nuclear Energy and Engineering, Physics::Plasma Physics, law, Physics::Space Physics, Atomic physics
Abstract: The evolution of a tearing mode is a multi-scale problem, involving lengths from below the ion gyroradius up to the dimensions of the system. The effects due to finite ion Larmor radius on the island dynamics are investigated by means of numerical gyrokinetic and gyrofluid simulations in tokamak geometry. In gyrokinetic runs, the magnetic island is prescribed. The coupling induced by a static island between small and large scale fluctuations in the case of electrostatic turbulence is discussed and the role of the perturbed magnetic geometry on the electron response is highlighted. Simulations in the presence of a rotating island, excluding background turbulence, allow a clear, self-consistent determination of the electrostatic potential associated with the island rotation and of the relevant plasma profiles for arbitrary island widths. Finally, the first gyrofluid simulations showing the growth of an island in the presence of electromagnetic turbulence for parameters typical of a mid-size tokamak are presented.
Published: 2010
Full Text: View/download PDF

23. Nonlinear gyrofluid computation of edge localized ideal ballooning modes

Author: Alexander Kendl, Bruce D. Scott, and T. T. Ribeiro
Subjects: Physics, Tokamak, Turbulence, Gyroradius, Computation, FOS: Physical sciences, Atmospheric-pressure plasma, Condensed Matter Physics, 7. Clean energy, 01 natural sciences, Physics - Plasma Physics, Ballooning, 010305 fluids & plasmas, law.invention, Computational physics, Ion, Plasma Physics (physics.plasm-ph), Nonlinear system, Physics::Plasma Physics, law, 0103 physical sciences, 010306 general physics
Abstract: Three dimensional electromagnetic gyrofluid simulations of the ideal ballooning mode blowout scenario for tokamak edge localized modes (ELMs) are presented. Special emphasis is placed on energetic diagnosis, examining changes in the growth rate in the linear, overshoot, and decay phases. The saturation process is energy transfer to self generated edge turbulence which exhibits an ion temperature gradient (ITG) mode structure. Convergence in the decay phase is found only if the spectrum reaches the ion gyroradius. The equilibrium is a self consistent background whose evolution is taken into account. Approximately two thirds of the total energy in the edge layer is liberated in the blowout. Parameter dependence with respect to plasma pressure and the ion gyroradius is studied. Despite the violent nature of the short-lived process, the transition to nonlinearity is very similar to that found in generic tokamak edge turbulence., The following article has been submitted to Physics of Plasmas. After it is published, it will be found at http://pop.aip.org/
Published: 2010
Full Text: View/download PDF

24. The European turbulence code benchmarking effort: turbulence driven by thermal gradients in magnetically confined plasmas

Author: Tilman Dannert, Ben F. McMillan, V. Grandgirard, Frank Jenko, Anders Nielsen, Maurizio Ottaviani, Alexander Kendl, Paolo Angelino, Dirk Reiser, A. G. Peeters, G. L. Falchetto, Alberto Bottino, Bruce D. Scott, Salomon Janhunen, M. Romanelli, M. J. Pueschel, T. T. Ribeiro, S. Jolliet, and Volker Naulin
Subjects: Physics, Tokamak, Turbulence, Mechanics, Plasma, Collisionality, Condensed Matter Physics, law.invention, Nuclear Energy and Engineering, Physics::Plasma Physics, law, Beta (plasma physics), Statistical physics, Magnetohydrodynamics, Adiabatic process, Scaling
Abstract: A cross-comparison and verification of state-of-the-art European codes describing gradient-driven plasma turbulence in the core and edge regions of tokamaks, carried out within the EFDA Task Force on Integrated Tokamak Modelling, is presented. In the case of core ion temperature gradient (ITG) driven turbulence with adiabatic electrons (neglecting trapped particles), good/reasonable agreement is found between various gyrokinetic/gyrofluid codes. The main physical reasons for some deviations observed in nonlocal simulations are discussed. The edge simulations agree very well on collisionality scaling and acceptably well on beta scaling (below the MHD boundary) for cold-ion cases, also in terms of the non-linear mode structure.
Published: 2008
Full Text: View/download PDF

25. Gyrofluid turbulence studies of the effect of the poloidal position of an axisymmetric Debye sheath

Author: Bill Scott and T. T. Ribeiro
Subjects: Physics, Debye sheath, Tokamak, Field line, Turbulence, Plasma, Mechanics, Condensed Matter Physics, Curvature, law.invention, Magnetic field, symbols.namesake, Classical mechanics, Nuclear Energy and Engineering, Physics::Plasma Physics, law, symbols, Debye
Abstract: The field line connection of a tokamak sheared magnetic field ensures a finite parallel dynamical response for every degree of freedom available in the system. In the scrape-off layer (SOL) the flux surfaces are open, and the field line connection property is broken by the presence of a Debye sheath arising where the field lines strike boundary plates, hence allowing the existence of convective cell modes for which there is no dynamical parallel response. This leads to a major distinction in terms of turbulence character between closed and open flux surface regions. We study this using three-dimensional electromagnetic gyrofluid computations. The turbulence is found to change character from an ion temperature gradient to a generic interchange type, crossing the last closed flux surface (LCFS) radially outward. The width of the transition zone is about ten ion gyroradii. Various poloidal configurations of the Debye sheaths retain this interface property but affect the interaction between the turbulence and the slowly varying, self-consistent background. The strongest effect is found in a case with sheath plates at both the top and bottom of the SOL, allowing the high-field and low-field sides of the SOL to decouple. In these sides the curvature is favourable and unfavourable, respectively. The clear asymmetry observed between these sides of the plasma is consistent with previous experimental results and makes room for future experimental qualitative comparisons, for instance, on double null configurations of the tokamak ASDEX Upgrade.
Published: 2008
Full Text: View/download PDF

26. Microwave reflectometry for turbulence studies on ASDEX Upgrade

Author: T. T. Ribeiro, F. Serra, G. D. Conway, M. E. Manso, F. Ryter, L. Cupido, B. Kurzan, A. Silva, W. Suttrop, S. Vergamota, and null ASDEX Upgrade Team
Subjects: Physics, Tokamak, Turbulence, Divertor, Plasma, Electron cyclotron resonance, law.invention, Computational physics, Physics::Fluid Dynamics, ASDEX Upgrade, Physics::Plasma Physics, law, Physics::Space Physics, Plasma diagnostics, Atomic physics, Reflectometry, Instrumentation
Abstract: We study the evolution of turbulence at several radial plasma locations in the Axially Symmetric Divertor Experiment (ASDEX) Upgrade tokamak, using microwave reflectometry. We analyze two types of scenarios: H-mode plasmas with improved performance and plasmas with electron cyclotron resonance heating modulation. Profound modifications of the turbulence spectra, occurring at specific plasma regions, have been found in both cases, indicating the relation between turbulence changes and confinement. The results demonstrate the ability of the reflectometry system on ASDEX Upgrade to make localized measurements. Mapping the radial distribution of turbulence can help us to understand the links between plasma rotation, shear, E×B flows, and the plasma turbulence behavior.
Published: 2001
Full Text: View/download PDF

27. Microwave reflectometry for turbulence studies on ASDEX upgrade (abstract)

Author: F. Serra, S. Vergamota, G. D. Conway, F. Ryter, A. Silva, L. Cupido, W. Suttrop, T. T. Ribeiro, and M. E. Manso
Subjects: Materials science, Tokamak, business.industry, Turbulence, Radius, Plasma, Spectral line, law.invention, Optics, Nuclear magnetic resonance, ASDEX Upgrade, Physics::Plasma Physics, law, Plasma diagnostics, business, Reflectometry, Instrumentation
Abstract: The reflectometry system installed in the tokamak ASDEX Upgrade has 11 channels primarily aimed at profile measurements and two dedicated channels operating at fixed frequency to study density fluctuations. The channels used for profile measurements can also be operated at fixed frequency. In this article we describe the potential of the system to study important characteristics of the plasma turbulence, from combined fixed frequency and profile measurements (to localize the reflecting layers). The numerical tools used to treat fixed frequency data are briefly described. Using a set of similar discharges and the ability of the microwave reflectometry system to probe simultaneously different layers with several channels, we obtain the time evolution of the integrated power spectra of the different signals versus the minor radius of the plasma. In plasma with H-mode edge and internal transport barrier we could identify a zone at the plasma core and another at the edge with reduced fluctuation levels, coinci...
Published: 2001
Full Text: View/download PDF

28. Overview of JET results

Author: F. Romanelli, F. Laxaback, I. Abel, V. Afanesyev, G. Agarici, K. M. Aggarwal, M. Airila, R. Akers, T.h. Alarcon, A. Alexeev, A. Alfier, P. Allan, S. Almaviva, A. Alonso, M. Alonso, B. Alper, H. Altmann, D. Alves, V. Amosov, G. Anda, F. Andersson, E. Andersson Sund́en, V. Andreev, Y. Andrew, M. Angelone, M. Anghel, A. Anghel, C. Angioni, G. Apruzzese, N. Arcis, P. Arena, A. Argouarch, M. Ariola, A. Armitano, R. Armstrong, G. Arnoux, S. Arshad, G. Artaserse, J. F. Artaud, A. Ash, E. Asp, O. Asunta, C. V. Atanasiu, G. Atkins, M. D. Axton, C. Ayres, A. Baciero, V. Bailescu, B. Baiocchi, R. A. Baker, I. Balboa, C. Balorin, N. Balshaw, J. W. Banks, Y. F. Baranov, D. Barbier, I. L. Barlow, M. A. Barnard, R. Barnsley, L. Barrena, L. Barrera, M. Baruzzo, V. Basiuk, G. Bateman, P. Batistoni, N. Baumgarten, L. Baylor, B. Bazylev, P. S. Beaumont, K. Beausang, M. B́ecoulet, N. Bekris, M. Beldishevski, A. C. Bell, F. Belli, M. Bellinger, P. S. A. Belo, ́.E. Belonohy, P. E. Bennett, N. A. Benterman, G. Berger By, H. Bergsåker, H. Berk, J. Bernardo, B. Bertrand, M. N. A. Beurskens, B. Bieg, B. Bienkowska, T. Biewer, T. M. Biewer, M. Bigi, R. Bilato, J. Bird, J. Bizarro, T. R. Blackman, P. Blanchard, E. Blanco, J. Blum, V. Bobkov, A. Boboc, D. Boilson, I. Bolshakova, T. Bolzonella, L. Boncagni, G. Bonheure, X. Bonnin, D. Borba, A. Borthwick, A. Botrugno, C. Boulbe, F. Bouquey, C. Bourdelle, K. v. Bovert, M. Bowden, T. Boyce, H. J. Boyer, A. Bozhenkov, R. J. Brade, J. M. A. Bradshaw, J. Braet, V. Braic, G. C. Braithwaite, C. Brault, H. Braune, B. Breizman, S. Bremond, P. D. Brennan, A. Brett, J. Breue, S. Brezinsek, M. D. J. Bright, F. Briscoe, M. Brix, M. Brombin, B. C. Brown, D. P. D. Brown, A. Bruschi, J. Brzozowski, J. Bucalossi, M. A. Buckley, T. Budd, R. Budny, R. V. Budny, P. Bunting, P. Buratti, G. Burcea, P. R. Butcher, R. J. Buttery, R. Caç̃ao, G. Calabr`o, C. P. Callaghan, J. P. Caminade, P. G. Camp, D. C. Campling, J. Canik, B. Cannas, A. J. Capel, P. J. Card, A. Cardinali, T. Carlstrom, P. Carman, D. Carralero, L. Carraro, T. Carter, B. B. Carvalho, P. Carvalho, A. Casati, C. Castaldo, J. Caughman, R. Cavazzana, M. Cavinato, M. Cecconello, F. E. Cecil, A. Cenedese, C. Centioli, R. Cesario, C. D. Challis, M. Chandler, C. Chang, A. Chankin, I. T. Chapman, D. J. Child, P. Chiru, G. Chitarin, I. Chugonov, I. Chugunov, D. Ciric, F. Clairet, R. H. Clarke, R. Clay, M. Clever, J. P. Coad, P. A. Coates, V. Cocilovo, S. Coda, R. Coelho, J. Coenen, I. Coffey, L. Colas, M. Cole, S. Collins, S. Combs, J. Compan, J. E. Conboy, S. Conroy, N. Cook, S. P. Cook, D. Coombs, S. R. Cooper, Y. Corre, G. Corrigan, S. Cortes, D. Coster, G. F. Counsell, X. Courtois, M. Cox, T. Craciunescu, S. Cramp, F. Crisanti, O. Croft, K. Crombe, B. J. Crowley, N. Cruz, L. Cupido, M. Curuia, R. A. Cusack, A. Czarnecka, S. Dalley, E. T. Daly, A. Dalziel, D. Darrow, O. David, N. Davies, J. J. Davis, I. E. Day, C. Day, R. De Angelis, G. deArcas, M. R. de Baar, E. delaCal, E. de la Luna, J. L. de Pablos, G. De Temmerman, P. C. de Vries, F. Degli Agostini, E. Delabie, D. del Castillo Negrete, L. Delpech, G. Denisov, A. J. Denyer, R. F. Denyer, S. Devaux, P. Devynck, L. Di Matteo, L. DiPace, P. J. Dirken, A. Dnestrovskiy, D. Dodt, K. Dominiczak, S. E. Dorling, D. Douai, A. P. Down, P. T. Doyle, J. R. Drake, T. Dreischuh, V. Drozdov, P. Dumortier, D. Dunai, I. Duran, F. Durodíe, K. Dylst, R. Eaton, T. Edlington, A. M. Edwards, D. T. Edwards, P. K. Edwards, T.h. Eich, A. Ekedahl, T. Elevant, A. Elfimov, B. Ellingboe, C. G. Elsmore, B. Emmoth, G. Ericsson, L. G. Eriksson, A. Eriksson, B. Esposito, H. G. Esser, T. Estrada, E. A. Evangelidis, G. E. Evans, G. D. Ewart, D. T. Ewers, G. Falchetto, D. Falie, J. G. A. Fanthome, D. Farina, J. W. Farthing, A. Fasoli, B. Faugeras, N. Fedorczak, R. C. Felton, C. Fenzi, H. Fernandes, J. A. Ferreira, J. Ferreira, J. Ferron, J. A. Fessey, L. Figini, A. Figueiredo, J. Figueiredo, P. Finburg, K. H. Finken, U. Fischer, N. Fitzgerald, J. Flanagan, C. Fleming, A. Fonseca, A. D. Forbes, O. Ford, A. Formisano, D. Fraboulet, R. J. Francis, L. Frassinetti, R. Fresa, J. P. Friconneau, D. Frigione, J. C. Fuchs, K. Fullard, W. Fundamenski, M. Furno Palumbo, J. Gafert, K. Ǵal, R. Galṽao, S. Garavaglia, X. Garbet, J. Garcia, M. Gar cia Munoz, W. Gardner, P. Garibaldi, D. Garnier, L. Garzotti, M. Gatu Johnson, P. Gaudio, E. Gauthier, J. W. Gaze, D. F. Gear, J. Gedney, S. J. Gee, M. Gelfusa, E. Genangeli, S. Gerasimov, A. Geraud, T. Gerbaud, M. Gherendi, N. Ghirelli, J. C. Giacalone, L. Giacomelli, C. S. Gibson, C. Gil, S. J. Gilligan, C. G. Gimblett, D. Gin, E. Giovannozzi, C. Giroud, G. Giruzzi, S. Glowacz, J. Godwin, J. K. Goff, P. Gohil, V. Goloborod’ko, B. Gonçalves, M. Goniche, S. Gonzales, S. M. Gonźalezde Vicente, A. Goodyear, N. Gorelenkov, G. Gorini, R. Goulding, B. Graham, D. Graham, M. E. Graham, G. Granucci, J. Graves, N. R. Green, H. Greuner, E. Grigore, F. S. Griph, C. Grisolia, G. Gros, G. Grossetti, M. Groth, S. Gr̈unhagen, M. P. Gryaznevich, R. Guirlet, B. Gulejova, J. Gunn, A. Gupta, P. Guzdar, P. Hacek, L. J. Hackett, S. Hacquin, B. Haist, A. Hakola, S. J. Hall, S. P. HallworthCook, D. T. Hamilton, H. Han, R. C. Handley, S. Harding, J. D. W. Harling, D. Harting, M. J. Harvey, T. D. V. Haupt, E. Havlickova, N. C. Hawkes, R. Hawryluk, J. H. Hay, N. Hayashi, P. W. Haydon, I. R. Hayward, S. Hazel, P. J. L. Heesterman, W. Heidbrink, J. Heikkinen, C. Hellesen, T. Hellsten, O. N. Hemming, T. C. Hender, M. Henderson, C. Hennig, V. Hennion, C. Hidalgo, S. Higashijima, J. W. Hill, M. Hill, K. Hill, J. Hillairet, D. Hillis, T. Hirai, M. Hitchin, J. Hobirk, C. Hogan, C. H. A. Hogben, G. M. D. Hogeweij, I. C. Hollingham, R. Holyaka, D. A. Homfray, G. Honeyands, S. H. Hong, C. Hopf, B. A. Horn, A. R. Horton, L. D. Horton, S. P. Hotchin, M. R. Hough, W. Houlberg, D. F. Howell, M. Hron, A. Huber, T. M. Huddleston, Z. Hudson, M. Hughes, M. Ḧuhnerbein, C. C. Hume, A. J. Hunt, C. L. Hunter, T. S. Hutchinson, S. Huygen, G. Huysmans, V. Hyn̈onen, S. Ide, R. Igreja, C. Illescas, F. Imbeaux, D. Ivanova, E. Ivings, S. Jachmich, G. Jackson, P. Jacquet, K. Jakubowska, M. Jakubowski, P. V. James, R. J. E. Jaspers, S. Jednorog, I. Jenkins, M. A. C. Jennison, C. Jeskins, O. Jin Kwon, E. Joffrin, M. F. Johnson, R. Johnson, T. Johnson, D. Jolovic, V. Jonauskas, E. M. Jones, G. Jones, H. D. Jones, T. T. C. Jones, M. Jouvet, C. Juṕen, I. Kachtchouk, J. Kaczmarczyk, A. Kallenbach, J. K̈allne, D. Kalupin, S. Ḱalvin, G. Kamelander, R. Kamendje, A. Kappatou, S. Karttunen, W. Kasparek, I. Katramados, M. Kaufmann, G. Kaveney, A. S. Kaye, M. J. Kear, D. L. Keeling, D. Kelliher, M. Kempenaars, P. Khilar, N. G. Kidd, M. Kiisk, K. M. Kim, R. F. King, D. J. Kinna, V. Kiptily, G. Kirnev, N. Kirneva, K. Kirov, A. Kirschner, R. Kisielius, D. Kislov, G. Kiss, T. Kiviniemi, G. Kizane, A. Klein, A. Klix, M. Knaup, K. Kneuper, H. Kneupner, P. J. Knight, S. J. Knipe, M. Kocan, F. K̈ochl, G. Kocsis, C. Konz, T. Koppitz, A. Korotkov, H. R. Koslowski, V. Kotov, M. D. Kovari, K. Kovarik, G. Kramer, A. Krasilnikov, V. Krasilnikov, S. Kraus, A. Kreter, K. Krieger, A. Kritz, Y. Krivchenkov, U. Kruezi, M. Krychowiak, S. Krylov, I. Ksiazek, M. Kubic, S. Kuhn, W. K̈uhnlein, T. Kurki Suonio, A. Kurowski, B. Kuteev, A. Kuyanov, R. La Haye, M. Laan, C. Labate, A. Lachichi, N. Lam, P. Lang, M. T. Large, I. Lassiwe, J. R. Last, K. D. Lawson, M. Laxåback, R. A. Layne, E. Lazzaro, F. LeGuern, B. LeBlanc, H. J. Leggate, M. Lehnen, M. Leigheb, I. Lengar, M. Lennholm, E. Lerche, C. N. Lescure, Y. Li, A. Li Puma, Y. Liang, J. Likonen, Y. Lin, J. Linke, S. A. Linstead, B. Lipshultz, X. Litaudon, A. G. Litvak, Y. Liu, T. Loarer, A. Loarte, R. C. Lobel, P. J. Lomas, F. D. Long, J. L̈onnroth, D. J. Looker, J. Lopez, P.h. Lotte, M. J. Loughlin, A. B. Loving, C. Lowry, T. Luce, R. M. A. Lucock, A. Lukanitsa, A. M. Lungu, C. P. Lungu, A. Lyssoivan, P. Macheta, A. S. Mackenzie, M. Macrae, G. Maddaluno, G. P. Maddison, J. Madsen, P. Maget, C. Maggi, H. Maier, J. Mailloux, M. Makowski, C. J. Manning, M. Mansfield, M. E. Manso, P. Mantica, M. Mantsinen, M. Maraschek, C. Marchetto, M. A. Marchitti, M. Mardenfeld, J. L. Marechal, M. Marinelli, A. Marinoni, M. Marinucci, J. M̈arki, D. Marocco, C. A. Marren, D. Martin, D. L. Martin, G. Martin, Y. Martin, J. R. Mart́ın Soĺıs, K. Masaki, A. Masiello, M. Maslov, C. Maszl, A. Matilal, M. Mattei, G. F. Matthews, F. Maviglia, C. R. May, M. Mayer, M. L. Mayoral, D. Mazon, C. Mazzotta, E. Mazzucato, P. McCarthy, K. G. McClements, K. McCormick, P. A. McCullen, D. McCune, D. C. McDonald, R. Mcgregor, J. P. Mckivitt, A. Meakins, F. Medina, A. G. Meigs, M. Menard, L. Meneses, S. Menmuir, I. R. Merrigan, P.h. Mertens, A. Messiaen, H. Meyer, M. Miele, P. Migliucci, A. G. Miller, S. F. Mills, J. J. Milnes, K. Min Kim, T. Mindham, F. Mirizzi, E. Mirones, M. Mironov, R. Mitteau, J. Mlynar, P. Mollard, I. Monakhov, P. Monier Garbet, R. Mooney, S. Moradi, D. Moreau, P.h. Moreau, L. Moreira, A. Morgan, P. D. Morgan, C. Morlock, A. Moro, A. W. Morris, G. L. Mort, C. Mrozek, A. Mueck, H. W. M̈uller, M. Murakami, A. Murari, I. Mustata, F. Nabais, E. Nardon, G. Nash, V. Naulin, M. F. F. Nave, R. Nazikian, I. Nedzelski, C. R. Negus, J. D. Neilson, A. Neto, R. Neu, O. Neubauer, G. J. Newbert, M. Newman, K. J. Nicholls, A. Nicolai, L. Nicolas, P. Nieckchen, P. Nielsen, A. H. Nielsen, S. K. Nielsen, G. Nielson, J. Nieto, M. P. S. Nightingale, C. Noble, M. Nocente, M. Nora, H. Nordman, M. Norman, J. M. Noterdaeme, S. Nowak, I. Nunes, F. Ognissanto, T. O’Gorman, S. Olariu, A. Oleynikov, M. O’Mullane, J. Ongena, F. Orsitto, O. I. Oswuigwe, M. Ottaviani, N. Oyama, D. Pacella, K. Paget, S. Palazzo, J. Pamela, S. Pamela, R. Panek, L. Pangione, A. Panin, T.h. Panis, A. Pankin, A. Pantea, V. Parail, T.h. Parisot, A. Parkin, A. Parsloe, B. T. Parsons, R. Pasqualotto, P. Pastor, R. Paterson, M. K. Paul, D. Peach, R. J. H. Pearce, B. J. Pearson, I. J. Pearson, L. C. Pedrick, M. A. Pedrosa, B. Pegourie, R. Pereira, E. Perelli Cippo, G. Pereverzev, A. Perevezentsev, C.h. PerezvonThun, V. Pericoli Ridolfini, A. Perona, Y. Perrot, S. Peruzzo, S. Peschanyy, G. Petravich, L. Petrizzi, V. Petrov, V. Petrzilka, V. Philipps, G. Piazza, F. Piccolo, A. Pietropaolo, M. Pillon, S. D. Pinches, T. Pinna, G. Pintsuk, P. Piovesan, F. Pisano, R. Pitts, B. Plaum, V. Plyusnin, M. Polasik, F. M. Poli, N. Pomaro, O. Pompilian, L. Poncet, P. J. Pool, S. Popovichev, F. Porcelli, M. T. Porfiri, C. Portafaix, A. Pospieszczyk, G. Possnert, G. Prestopino, P. Prior, R. Prokopowicz, I. Proverbio, R. Pugno, M. E. Puiatti, K. Purahoo, V. Pustovitov, T.h. P̈utterich, D. P̈uttmann Kneupner, E. Rachlew, R. Rademaker, T. Rafiq, M. S. J. Rainford, G. Ramogida, K. Rantam̈aki, J. Rapp, J. J. Rasmussen, G. Ratt́a, G. Ravera, M. Reich, R. Reichle, D. Reiser, R. Reiss, D. Reiter, D. Rendell, C. Reux, G. Rewoldt, T. T. Ribeiro, V. Riccardo, D. Richards, F. Rigollet, F. G. Rimini, L. Rios, M. Riva, J. E. C. Roberts, R. J. Robins, D. S. Robinson, S. A. Robinson, D. W. Robson, H. Roche, M. R̈odig, N. Rodionov, V. Rohde, A. Rolfe, M. Romanelli, A. Romano, J. Romero, E. Ronchi, S. Rosanvallon, C.h. Roux, S. Rowe, M. Rubel, L. Ruchko, M. Ruiz, C. Ruset, M. Russell, A. Ruth, L. Ryc, A. Rydzy, F. Ryter, J. Rzadkiewicz, S. Saarelma, F. Sabathier, R. Sabot, S. Sadakov, P. Sagar, G. Saibene, A. Saille, F. Saint Laurent, A. Salmi, R. Salomaa, F. Salzedas, U. Samm, P. Sanchez, S. Sanders, S. G. Sanders, G. Sandford, K. Sandland, P. Sandquist, D. E. G. Sands, M. I. K. Santala, F. Sartori, R. Sartori, O. Sauter, A. Savelyev, A. Savtchkov, S. C. Scales, A. Scarabosio, N. Schaefer, C.h. Schlatter, V. Schmidt, A. Schmidt, O. Schmitz, S. Schmuck, M. Schneider, M. Scholz, K. Scḧopf, B. Schweer, J. Schweinzer, B. Scott, M. Seki, L. Semeraro, A. Semerok, G. Sergienko, F. Serra, M. Sertoli, M. M. J. Shannon, S. E. Sharapov, S. R. Shaw, A. Shevelev, R. Sievering, C. A. Silva, P. A. Simmons, A. Simonetto, D. Simpson, S. Sipila, A. C. C. Sips, A. Sirinelli, H. Sj̈ostrand, D. Skopintsev, K. S.l.a.b.k.o.w.s.k.a., P. G. Smith, J. Snipes, L. Snoj, S. Snyder, S. Soare, E. R. Solano, S. Soldatov, A. Soleto, W. Solomon, C. Soltane, P. Sonato, A. Sopplesa, A. Sorrentino, J. Sousa, C. B. C. Sowden, C. Sozzi, P. Sp̈ah, T. Spelzini, J. Spence, F. Spineanu, P. Spuig, A. Sẗabler, R. D. Stagg, M. F. Stamp, V. Stancalie, P. Stangeby, C. Stan Sion, D. E. Starkey, M. J. Stead, A. V. Stephen, A. L. Stevens, J. Stober, R. B. Stokes, D. Stork, D. Stoyanov, J. Strachan, P. Strand, M. Stransky, D. Strauss, D. Strintzi, W. Studholme, Y. SuNa, F. Subba, H. P. Summers, Y. Sun, C. Surdu Bob, E. Surrey, D. J. Sutton, J. Svensson, D. Swain, B. D. Syme, I. D. Symonds, T. Szepesi, A. Szydlowski, F. Tabares, V. Takalo, H. Takenaga, T. Tala, A. R. Talbot, C. Taliercio, C. Tame, G. Tardini, M. Tardocchi, L. Taroni, G. Telesca, A. Terra, A. O. Terrington, D. Testa, J. M. Theis, J. D. Thomas, P. D. Thomas, P. R. Thomas, V. K. Thompson, H. Thomsen, C. Thomser, A. Thyagaraja, P. A. Tigwell, I. Tiseanu, R. Tivey, J. M. Todd, T. N. Todd, M. Z. Tokar, S. Tosti, P. Trabuc, J. M. Travere, W. Treutterer, P. Trimble, A. Trkov, E. Trukhina, M. Tsalas, H. Tsige Tamirat, E. Tsitrone, D. Tskhakaya jun, O. Tudisco, S. Tugarinov, M. M. Turner, G. Turri, S. G. J. Tyrrell, N. Umeda, B. Unterberg, H. Urano, A. J. Urquhart, I. Uytdenhouwen, A. Vaccaro, A. P. Vadgama, G. Vagliasindi, D. Valcarcel, M. Valisa, J. Vallory, M. Valovic, D. Van Eester, B. van Milligen, G. J. van Rooij, C. A. F. Varandas, S. Vartanian, V. Vdovin, J. Vega, G. Verdoolaege, J. M. Verger, L. Vermare, C. Verona, T.h. Versloot, M. Vervier, J. Vicente, S. Villari, E. Villedieu, F. Villone, J. E. Vince, G. J. Vine, B. Viola, E. Vitale, R. Vitelli, M. Vlad, I. Voitsekhovitch, M. Vrancken, K. Vulliez, C. W. F. Waldon, M. Walker, M. J. Walsh, J. Waterhouse, M. L. Watkins, M. J. Watson, T. Wauters, M. W. Way, C. R. Webb, J. Weiland, H. Weisen, M. Weiszflog, R. Wenninger, A. T. West, J. M. Weulersse, B. Weyssow, M. R. Wheatley, A. D. Whiteford, A. M. Whitehead, A. G. Whitehurst, A. M. Widdowson, R. C. Wieggers, C. Wiegmann, S. Wiesen, A. Wilson, D. Wilson, D. J. Wilson, H. R. Wilson, M. Wischmeier, D. M. Witts, R. C. Wolf, J. Wolowski, P. Woscov, G. M. Wright, J. Wright, G. S. Xu, V. Yavorskij, V. Yerashok, J. Yorkshades, C. Young, D. Young, I. D. Young, X. Yuhong, L. Zabeo, A. Zabolotsky, L. Zaccarian, R. Zagorski, F. S. Zaitsev, S. Zajac, L. Zakharov, R. Zanino, V. Zaroschi, K. D. Zastrow, I. Zatz, B. Zefran, W. Zeidner, M. Zerbini, T. Zhang, Y. Zhu, E. Zilli, O. Zimmermann, V. Zoita, S. Zoletnik, W. Zwingman, JET EFDA Contributors, ALBANESE, Raffaele, AMBROSINO, GIUSEPPE, BELLIZIO, TERESA, CARANNANTE, GIUSEPPE, COCCORESE, VINCENZO, DE TOMMASI, GIANMARIA, MIANO, GIOVANNI, PIRONTI, ALFREDO, QUERCIA, ANTONIO, RUBINACCI, GUGLIELMO, J., Pamela, EMILIA R., Solano, AND JET EFDA, Contributor, J. M., Adam, G., Agarici, M., Agarici, H., Akhter, Albanese, Raffaele, Romanelli, F., Laxaback, F., Abel, I., Afanesyev, V., Agarici, G., Aggarwal, K. M., Airila, M., Akers, R., Alarcon, T. h., Alexeev, A., Alfier, A., Allan, P., Almaviva, S., Alonso, A., Alonso, M., Alper, B., Altmann, H., Alves, D., Ambrosino, Giuseppe, Amosov, V., Anda, G., Andersson, F., Andersson Sund́en, 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., Axton, M. D., Ayres, C., Baciero, A., Bailescu, V., Baiocchi, B., Baker, R. A., Balboa, I., 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., B́ecoulet, M., Bekris, N., Beldishevski, M., Bell, A. C., Belli, F., Bellinger, M., Bellizio, Teresa, Belo, P. S. A., Belonohy, ́. E., Bennett, P. E., Benterman, N. A., Berger By, G., Bergsåker, H., Berk, H., Bernardo, J., Bertrand, B., Beurskens, M. N. A., Bieg, B., Bienkowska, B., Biewer, T., Biewer, T. M., Bigi, M., Bilato, R., Bird, J., Bizarro, J., 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., Braune, H., 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., Bruschi, A., Brzozowski, J., Bucalossi, J., Buckley, M. A., Budd, T., Budny, R., Budny, R. V., Bunting, P., Buratti, P., Burcea, G., Butcher, P. R., Buttery, R. J., Caç̃ao, R., Calabr`o, G., Callaghan, C. P., Caminade, J. P., Camp, P. G., Campling, D. C., Canik, J., Cannas, B., Capel, A. J., Carannante, Giuseppe, Card, P. J., Cardinali, A., Carlstrom, T., Carman, P., Carralero, D., Carraro, L., Carter, T., Carvalho, B. B., Carvalho, P., Casati, A., Castaldo, C., Caughman, J., Cavazzana, R., Cavinato, M., Cecconello, M., Cecil, F. E., Cenedese, A., Centioli, C., Cesario, R., Challis, C. D., Chandler, M., Chang, C., Chankin, A., Chapman, I. T., 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., Coccorese, Vincenzo, 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., Croft, O., Crombe, K., Crowley, B. J., Cruz, N., Cupido, L., Curuia, M., Cusack, R. A., Czarnecka, A., Dalley, S., Daly, E. T., Dalziel, A., Darrow, D., David, O., Davies, N., Davis, J. J., Day, I. E., Day, C., De Angelis, R., Dearcas, G., de Baar, M. R., Delacal, E., de la Luna, E., de Pablos, J. L., De Temmerman, G., DE TOMMASI, Gianmaria, de Vries, P. C., 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., Dipace, L., Dirken, P. J., Dnestrovskiy, A., Dodt, D., Dominiczak, K., Dorling, S. E., Douai, D., Down, A. P., Doyle, P. T., Drake, J. R., Dreischuh, T., Drozdov, V., Dumortier, P., Dunai, D., Duran, I., Durodíe, F., Dylst, K., Eaton, R., Edlington, T., Edwards, A. M., Edwards, D. T., Edwards, P. K., Eich, T. h., Ekedahl, A., Elevant, T., Elfimov, A., Ellingboe, B., Elsmore, C. G., Emmoth, B., 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., Farina, D., Farthing, J. W., Fasoli, A., Faugeras, B., Fedorczak, N., Felton, R. C., Fenzi, C., Fernandes, H., Ferreira, J. A., Ferreira, J., Ferron, J., Fessey, J. A., Figini, L., Figueiredo, A., Figueiredo, J., Finburg, P., Finken, K. H., Fischer, U., Fitzgerald, N., Flanagan, J., Fleming, C., Fonseca, A., Forbes, A. D., Ford, O., Formisano, A., Fraboulet, D., Francis, R. J., Frassinetti, L., Fresa, R., Friconneau, J. P., Frigione, D., Fuchs, J. C., Fullard, K., Fundamenski, W., Furno Palumbo, M., Gafert, J., Ǵal, K., Galṽao, R., Garavaglia, S., Garbet, X., Garcia, J., Gar cia 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., Glowacz, S., Godwin, J., Goff, J. K., Gohil, P., Goloborod’Ko, V., Gonçalves, B., Goniche, M., Gonzales, S., Gonźalezde Vicente, S. M., Goodyear, A., Gorelenkov, N., Gorini, G., Goulding, R., Graham, B., Graham, D., Graham, M. E., Granucci, G., Graves, J., Green, N. R., Greuner, H., Grigore, E., Griph, F. S., Grisolia, C., Gros, G., Grossetti, G., Groth, M., Gr̈unhagen, S., Gryaznevich, M. P., Guirlet, R., Gulejova, B., Gunn, J., Gupta, A., Guzdar, P., Hacek, P., Hackett, L. J., Hacquin, S., Haist, B., Hakola, A., Hall, S. J., Hallworthcook, 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., Havlickova, E., Hawkes, N. C., Hawryluk, R., Hay, J. H., Hayashi, N., Haydon, P. W., Hayward, I. R., Hazel, S., Heesterman, P. J. L., Heidbrink, W., Heikkinen, J., Hellesen, C., Hellsten, T., Hemming, O. N., Hender, T. C., Henderson, M., Hennig, C., 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., Hopf, C., Horn, B. A., Horton, A. R., Horton, L. D., Hotchin, S. P., Hough, M. R., Houlberg, W., Howell, D. F., Hron, M., Huber, A., Huddleston, T. M., Hudson, Z., Hughes, M., Ḧuhnerbein, M., Hume, C. C., Hunt, A. J., Hunter, C. L., Hutchinson, T. S., Huygen, S., Huysmans, G., Hyn̈onen, V., Ide, S., Igreja, R., Illescas, C., Imbeaux, F., Ivanova, D., Ivings, E., Jachmich, S., Jackson, G., Jacquet, P., Jakubowska, K., Jakubowski, M., James, P. V., Jaspers, R. J. E., 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., Juṕen, C., Kachtchouk, I., Kaczmarczyk, J., Kallenbach, A., K̈allne, J., Kalupin, D., Ḱalvin, S., Kamelander, G., Kamendje, R., Kappatou, A., Karttunen, S., Kasparek, W., Katramados, I., Kaufmann, M., Kaveney, G., Kaye, A. S., Kear, M. J., Keeling, D. L., Kelliher, D., Kempenaars, M., Khilar, P., Kidd, N. G., Kiisk, M., Kim, K. M., King, R. F., Kinna, D. J., Kiptily, V., Kirnev, G., Kirneva, N., Kirov, K., Kirschner, A., Kisielius, R., Kislov, D., Kiss, G., Kiviniemi, T., Kizane, G., Klein, A., Klix, A., Knaup, M., Kneuper, K., Kneupner, H., Knight, P. J., Knipe, S. J., Kocan, M., K̈ochl, F., Kocsis, G., Konz, C., Koppitz, T., Korotkov, A., Koslowski, H. R., Kotov, V., Kovari, M. D., Kovarik, K., Kramer, G., Krasilnikov, A., Krasilnikov, V., Kraus, S., Kreter, A., Krieger, K., Kritz, A., Krivchenkov, Y., Kruezi, U., Krychowiak, M., Krylov, S., Ksiazek, I., Kubic, M., Kuhn, S., K̈uhnlein, W., Kurki Suonio, T., Kurowski, A., Kuteev, B., Kuyanov, A., La Haye, R., Laan, M., Labate, C., Lachichi, A., Lam, N., Lang, P., Large, M. T., Lassiwe, I., Last, J. R., Lawson, K. D., Laxåback, M., Layne, R. A., Lazzaro, E., Leguern, F., Leblanc, B., Leggate, H. J., Lehnen, M., Leigheb, M., Lengar, I., Lennholm, M., Lerche, E., Lescure, C. N., Li, Y., Li Puma, A., Liang, Y., Likonen, J., Lin, Y., Linke, J., Linstead, S. A., Lipshultz, B., Litaudon, X., Litvak, A. G., Liu, Y., Loarer, T., Loarte, A., Lobel, R. C., Lomas, P. J., Long, F. D., L̈onnroth, J., Looker, D. J., Lopez, J., Lotte, P. h., Loughlin, M. J., Loving, A. B., Lowry, C., Luce, T., Lucock, R. M. A., Lukanitsa, A., Lungu, A. M., Lungu, C. P., Lyssoivan, A., Macheta, P., Mackenzie, A. S., Macrae, M., Maddaluno, G., Maddison, G. P., Madsen, J., Maget, P., Maggi, C., Maier, H., Mailloux, J., Makowski, M., Manning, C. J., Mansfield, M., Manso, M. E., Mantica, P., Mantsinen, M., Maraschek, M., Marchetto, C., Marchitti, M. A., Mardenfeld, M., Marechal, J. L., Marinelli, M., Marinoni, A., Marinucci, M., M̈arki, J., Marocco, D., Marren, C. A., Martin, D., Martin, D. L., Martin, G., Martin, Y., Mart́ın Soĺıs, J. R., Masaki, K., Masiello, A., Maslov, M., Maszl, C., Matilal, A., Mattei, M., Matthews, G. F., Maviglia, F., May, C. R., Mayer, M., Mayoral, M. L., Mazon, D., Mazzotta, C., Mazzucato, E., Mccarthy, P., Mcclements, K. G., Mccormick, K., Mccullen, P. A., Mccune, D., Mcdonald, D. C., Mcgregor, R., Mckivitt, J. P., Meakins, A., Medina, F., Meigs, A. G., Menard, M., Meneses, L., Menmuir, S., Merrigan, I. R., Mertens, P. h., Messiaen, A., Meyer, H., Miano, Giovanni, Miele, M., Migliucci, P., Miller, A. G., Mills, S. F., Milnes, J. J., Min Kim, K., Mindham, T., Mirizzi, F., Mirones, E., Mironov, M., Mitteau, R., Mlynar, J., Mollard, P., Monakhov, I., Monier Garbet, P., Mooney, R., Moradi, S., Moreau, D., Moreau, P. h., Moreira, L., Morgan, A., Morgan, P. D., Morlock, C., Moro, A., Morris, A. W., Mort, G. L., Mrozek, C., Mueck, A., M̈uller, H. W., Murakami, M., Murari, A., Mustata, I., Nabais, F., Nardon, E., Nash, G., Naulin, V., Nave, M. F. F., Nazikian, R., Nedzelski, I., Negus, C. R., Neilson, J. D., Neto, A., Neu, R., Neubauer, O., Newbert, G. J., Newman, M., Nicholls, K. J., Nicolai, A., Nicolas, L., Nieckchen, P., Nielsen, P., Nielsen, A. H., Nielsen, S. K., Nielson, G., Nieto, J., Nightingale, M. P. S., Noble, C., Nocente, M., Nora, M., Nordman, H., Norman, M., Noterdaeme, J. M., Nowak, S., Nunes, I., Ognissanto, F., O’Gorman, T., Olariu, S., Oleynikov, A., O’Mullane, M., Ongena, J., Orsitto, F., Oswuigwe, O. I., Ottaviani, M., Oyama, N., Pacella, D., Paget, K., Palazzo, S., Pamela, J., Pamela, S., Panek, R., Pangione, L., Panin, A., Panis, T. h., Pankin, A., Pantea, A., Parail, V., Parisot, T. h., Parkin, A., Parsloe, A., Parsons, B. T., Pasqualotto, R., Pastor, P., Paterson, R., Paul, M. K., Peach, D., Pearce, R. J. H., Pearson, B. J., Pearson, I. J., Pedrick, L. C., Pedrosa, M. A., Pegourie, B., Pereira, R., Perelli Cippo, E., Pereverzev, G., Perevezentsev, A., Perezvonthun, C. h., Pericoli Ridolfini, V., Perona, A., Perrot, Y., Peruzzo, S., Peschanyy, S., Petravich, G., Petrizzi, L., Petrov, V., Petrzilka, V., Philipps, V., Piazza, G., Piccolo, F., Pietropaolo, A., Pillon, M., Pinches, S. D., Pinna, T., Pintsuk, G., Piovesan, P., Pironti, Alfredo, Pisano, F., Pitts, R., Plaum, B., Plyusnin, V., Polasik, M., Poli, F. M., Pomaro, N., Pompilian, O., Poncet, L., Pool, P. J., Popovichev, S., Porcelli, F., Porfiri, M. T., Portafaix, C., Pospieszczyk, A., Possnert, G., Prestopino, G., Prior, P., Prokopowicz, R., Proverbio, I., Pugno, R., Puiatti, M. E., Purahoo, K., Pustovitov, V., P̈utterich, T. h., P̈uttmann Kneupner, D., Quercia, Antonio, Rachlew, E., Rademaker, R., Rafiq, T., Rainford, M. S. J., Ramogida, G., Rantam̈aki, K., Rapp, J., Rasmussen, J. J., Ratt́a, G., Ravera, G., Reich, M., Reichle, R., Reiser, D., Reiss, R., Reiter, D., Rendell, D., Reux, C., Rewoldt, G., Ribeiro, T. T., Riccardo, V., Richards, D., Rigollet, F., Rimini, F. G., Rios, L., Riva, M., Roberts, J. E. C., Robins, R. J., Robinson, D. S., Robinson, S. A., Robson, D. W., Roche, H., R̈odig, M., Rodionov, N., Rohde, V., Rolfe, A., Romanelli, M., Romano, A., Romero, J., Ronchi, E., Rosanvallon, S., Roux, C. h., Rowe, S., Rubel, M., Rubinacci, Guglielmo, Ruchko, L., Ruiz, M., Ruset, C., Russell, M., Ruth, A., Ryc, L., Rydzy, A., Ryter, F., Rzadkiewicz, J., Saarelma, S., Sabathier, F., Sabot, R., Sadakov, S., Sagar, P., Saibene, G., Saille, A., Saint Laurent, F., Salmi, A., Salomaa, R., Salzedas, F., Samm, U., Sanchez, P., Sanders, S., Sanders, S. G., Sandford, G., Sandland, K., Sandquist, P., Sands, D. E. G., Santala, M. I. K., Sartori, F., Sartori, R., Sauter, O., Savelyev, A., Savtchkov, A., Scales, S. C., Scarabosio, A., Schaefer, N., Schlatter, C. h., Schmidt, V., Schmidt, A., Schmitz, O., Schmuck, S., Schneider, M., Scholz, M., Scḧopf, K., Schweer, B., Schweinzer, J., Scott, B., Seki, M., Semeraro, L., Semerok, A., Sergienko, G., Serra, F., Sertoli, M., Shannon, M. M. J., Sharapov, S. E., Shaw, S. R., Shevelev, A., Sievering, R., Silva, C. A., Simmons, P. A., Simonetto, A., Simpson, D., Sipila, S., Sips, A. C. C., Sirinelli, A., Sj̈ostrand, H., Skopintsev, D., K. S. l. a. b. k. o. w. s. k. a., Smith, P. G., Snipes, J., Snoj, L., Snyder, S., Soare, S., Solano, E. R., Soldatov, S., Soleto, A., Solomon, W., Soltane, C., Sonato, P., Sopplesa, A., Sorrentino, A., Sousa, J., Sowden, C. B. C., Sozzi, C., Sp̈ah, P., Spelzini, T., Spence, J., Spineanu, F., Spuig, P., Sẗabler, A., Stagg, R. D., Stamp, M. F., Stancalie, V., Stangeby, P., Stan Sion, C., Starkey, D. E., Stead, M. J., Stephen, A. V., Stevens, A. L., Stober, J., Stokes, R. B., Stork, D., Stoyanov, D., Strachan, J., Strand, P., Stransky, M., Strauss, D., Strintzi, D., Studholme, W., Suna, Y., Subba, F., Summers, H. P., Sun, Y., Surdu Bob, C., Surrey, E., Sutton, D. J., Svensson, J., Swain, D., Syme, B. D., Symonds, I. D., Szepesi, T., Szydlowski, A., Tabares, F., Takalo, V., Takenaga, H., Tala, T., Talbot, A. R., Taliercio, C., Tame, C., Tardini, G., Tardocchi, M., Taroni, L., Telesca, G., Terra, A., Terrington, A. O., Testa, D., Theis, J. M., Thomas, J. D., Thomas, P. D., Thomas, P. R., Thompson, V. K., Thomsen, H., Thomser, C., Thyagaraja, A., Tigwell, P. A., Tiseanu, I., Tivey, R., Todd, J. M., Todd, T. N., Tokar, M. Z., Tosti, S., Trabuc, P., Travere, J. M., Treutterer, W., Trimble, P., Trkov, A., Trukhina, E., Tsalas, M., Tsige Tamirat, H., Tsitrone, E., Tskhakaya jun, D., Tudisco, O., Tugarinov, S., Turner, M. M., Turri, G., Tyrrell, S. G. J., Umeda, N., Unterberg, B., Urano, H., Urquhart, A. J., Uytdenhouwen, I., Vaccaro, A., Vadgama, A. P., Vagliasindi, G., Valcarcel, D., Valisa, M., Vallory, J., Valovic, M., Van Eester, D., van Milligen, B., van Rooij, G. J., Varandas, C. A. F., Vartanian, S., Vdovin, V., Vega, J., Verdoolaege, G., Verger, J. M., Vermare, L., Verona, C., Versloot, T. h., Vervier, M., Vicente, J., Villari, S., Villedieu, E., Villone, F., Vince, J. E., Vine, G. J., Viola, B., Vitale, E., Vitelli, R., Vlad, M., Voitsekhovitch, I., Vrancken, M., Vulliez, K., Waldon, C. W. F., Walker, M., Walsh, M. J., Waterhouse, J., Watkins, M. L., Watson, M. J., Wauters, T., Way, M. W., Webb, C. R., Weiland, J., Weisen, H., Weiszflog, M., Wenninger, R., West, A. T., Weulersse, J. M., Weyssow, B., Wheatley, M. R., Whiteford, A. D., Whitehead, A. M., Whitehurst, A. G., Widdowson, A. M., Wieggers, R. C., Wiegmann, C., Wiesen, S., Wilson, A., Wilson, D., Wilson, D. J., Wilson, H. R., Wischmeier, M., Witts, D. M., Wolf, R. C., Wolowski, J., Woscov, P., Wright, G. M., Wright, J., G. S., Xu, Yavorskij, V., Yerashok, V., Yorkshades, J., Young, C., Young, D., Young, I. D., Yuhong, X., Zabeo, L., Zabolotsky, A., Zaccarian, L., Zagorski, R., Zaitsev, F. S., Zajac, S., Zakharov, L., Zanino, R., Zaroschi, V., Zastrow, K. D., Zatz, I., Zefran, B., Zeidner, W., Zerbini, M., Zhang, T., Zhu, Y., Zilli, E., Zimmermann, O., Zoita, V., Zoletnik, S., Zwingman, W., JET EFDA Contributors, Romanelli, F, Laxaback, M, Abel, I, Afanesyev, V, Agarici, G, Aggarwal, K, Airila, M, Akers, R, Alarcon, T, Albanese, R, Alexeev, A, Alfier, A, Allan, P, Almaviva, S, Alonso, A, Alonso, M, Alper, B, Altmann, H, Alves, D, Ambrosino, G, Amosov, V, Anda, G, Andersson, F, Andersson Sunden, 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, Ash, A, Asp, E, Asunta, O, Atanasiu, C, Atkins, G, Axton, M, Ayres, C, Baciero, A, Bailescu, V, Baiocchi, B, Baker, R, Balboa, I, Balorin, C, Balshaw, N, Banks, J, Baranov, Y, Barbier, D, Barlow, I, Barnard, M, Barnsley, R, Barrena, L, Barrera, L, Baruzzo, M, Basiuk, V, Bateman, G, Batiston, P, Baumgarten, N, Baylor, L, Bazylev, B, Beaumont, P, Beausang, K, Becoulet, M, Bekris, N, Beldishevski, M, Bell, A, Belli, F, Bellinger, M, Bellizio, T, Belo, P, Belonohy, E, Bennett, P, Benterman, N, Berger By, G, Bergsaker, H, Berk, H, Bernardo, J, Bertrand, B, Beurskens, M, Bieg, B, Bienkowska, B, Biewer, T, Bigi, M, Bilato, R, Bird, J, Bizarro, J, Blackman, T, 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, Bowden, M, Boyce, T, Boyer, H, Bozhenkov, A, Brade, R, Bradshaw, J, Braet, J, Braic, V, Braithwaite, G, Brault, C, Braune, H, Breizman, B, Bremond, S, Brennan, P, Brett, A, Breue, J, Brezinsek, S, Bright, M, Briscoe, F, Brix, M, Brombin, M, Brown, B, Brown, D, Bruschi, A, Brzozowski, J, Bucalossi, J, Buckley, M, Budd, T, Budny, R, Bunting, P, Buratti, P, Burcea, G, Butcher, P, Buttery, R, Cacao, R, Calabro, G, Callaghan, C, Caminade, J, Camp, P, Campling, D, Canik, J, Cannas, B, Capel, A, Carannante, G, Card, P, Cardinali, A, Carlstrom, T, Carman, P, Carralero, D, Carraro, L, Carter, T, Carvalho, B, Carvalho, P, Casati, A, Castaldo, C, Caughman, J, Cavazzana, R, Cavinato, M, Cecconello, M, Cecil, F, Cenedese, A, Centioli, C, Cesario, R, Challis, C, Chandler, M, Chang, C, Chankin, A, Chapman, I, Child, D, Chiru, P, Chitarin, G, Chugonov, I, Ciric, D, Clairet, F, Clarke, R, Clay, R, Clever, M, Coad, J, Coates, P, Coccorese, V, Cocilovo, V, Coda, S, Coelho, R, Coenen, J, Coffey, I, Colas, L, Cole, M, Collins, S, Combs, S, Compan, J, Conboy, J, Conroy, S, Cook, N, Cook, S, Coombs, D, Cooper, S, Corre, Y, Corrigan, G, Cortes, S, Coster, D, Counsell, G, Courtois, X, Cox, M, Craciunescu, T, Cramp, S, Crisanti, F, Croft, O, Crombe, K, Crowley, B, Cruz, N, Cupido, L, Curuia, M, Cusack, R, Czarnecka, A, Dalley, S, Daly, E, Dalziel, A, Darrow, D, David, O, Davies, N, Davis, J, Day, I, Day, C, De Angelis, R, de Arcas, G, de Baar, M, de la Cal, E, de la Luna, E, de Pablos, J, De Temmerman, G, De Tommasi, G, de Vries, P, Degli Agostini, F, Delabie, E, del Castillo Negrete, D, Delpech, L, Denisov, G, Denyer, A, Denyer, R, Devaux, S, Devynck, P, Di Matteo, L, Di Pace, L, Dirken, P, Dnestrovskiy, A, Dodt, D, Dominiczak, K, Dorling, S, Douai, D, Down, A, Doyle, P, Drake, J, Dreischuh, T, Drozdov, V, Dumortier, P, Dunai, D, Duran, I, Durodie, F, Dylst, K, Eaton, R, Edlington, T, Edwards, A, Edwards, D, Edwards, P, Eich, T, Ekedahl, A, Elevant, T, Elfimov, A, Ellingboe, B, Elsmore, C, Emmoth, B, Ericsson, G, Eriksson, L, Eriksson, A, Esposito, B, Esser, H, Estrada, T, Evangelidis, E, Evans, G, Ewart, G, Ewers, D, Falchetto, G, Falie, D, Fanthome, J, Farina, D, Farthing, J, Fasoli, A, Faugeras, B, Fedorczak, N, Felton, R, Fenzi, C, Fernandes, H, Ferreira, J, Ferron, J, Fessey, J, Figini, L, Figueiredo, A, Figueiredo, J, Finburg, P, Finken, K, Fischer, U, Fitzgerald, N, Flanagan, J, Fleming, C, Fonseca, A, Forbes, A, Ford, O, Formisano, A, Fraboulet, D, Francis, R, Frassinetti, L, Fresa, R, Friconneau, J, Frigione, D, Fuchs, J, Fullard, K, Fundamenski, W, Furno Palumbo, M, Gafert, J, Gal, K, Galvao, R, 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, Gear, D, Gedney, J, Gee, S, Gelfusa, M, Genangeli, E, Gerasimov, S, Geraud, A, Gerbaud, T, Gherendi, M, Ghirelli, N, Giacalone, J, Giacomelli, L, Gibson, C, Gil, C, Gilligan, S, Gimblett, C, Gin, D, Giovannozzi, E, Giroud, C, Giruzzi, G, Glowacz, S, Godwin, J, Goff, J, Gohil, P, Goloborod'Ko, V, Goncalves, B, Goniche, M, Gonzales, S, Gonzales de Vicente, S, Goodyear, A, Gorelenkov, N, Gorini, G, Goulding, R, Graham, B, Graham, D, Graham, M, Granucci, G, Graves, J, Green, N, Greuner, H, Grigore, E, Griph, F, Grisolia, C, Gros, G, Grossetti, G, Groth, M, Gruenhagen, S, Gryaznevich, M, Guirlet, R, Gulejova, B, Gunn, J, Gupta, A, Guzdar, P, Hacek, P, Hackett, L, Hacquin, S, Haist, B, Hakola, A, Hall, S, Hallworth Cook, S, Hamilton, D, Han, H, Handley, R, Harding, S, Harling, J, Harting, D, Harvey, M, Haupt, T, Havlickova, E, Hawkes, N, Hawryluk, R, Hay, J, Hayashi, N, Haydon, P, Hayward, I, Hazel, S, Heesterman, P, Heidbrink, W, Heikkinen, J, Hellesen, C, Hellsten, T, Hemming, O, Hender, T, Henderson, M, Hennig, C, Hennion, V, Hidalgo, C, Higashijima, S, Hill, J, Hill, M, Hill, K, Hillairet, J, Hillis, D, Hirai, T, Hitchin, M, Hobirk, J, Hogan, C, Hogben, C, Hogeweij, G, Hollingham, I, Holyaka, R, Homfray, D, Honeyands, G, Hong, S, Hopf, C, Horn, B, Horton, A, Horton, L, Hotchin, S, Hough, M, Houlberg, W, Howell, D, Hron, M, Huber, A, Huddleston, T, Hudson, Z, Hughes, M, Huehnerbein, M, Hume, C, Hunt, A, Hunter, C, Hutchinson, T, Huygen, S, Huysmans, G, Hynoenen, V, Ide, S, Igreja, R, Illescas, C, Imbeaux, F, Ivanova, D, Ivings, E, Jachmich, S, Jackson, G, Jacquet, P, Jakubowska, K, Jakubowski, M, James, P, Jaspers, R, Jednorog, S, Jenkins, I, Jennison, M, Jeskins, C, Jin Kwon, O, Joffrin, E, Johnson, M, Johnson, R, Johnson, T, Jolovic, D, Jonauskas, V, Jones, E, Jones, G, Jones, H, Jones, T, Jouvet, M, Jupen, C, Kachtchouk, I, Kaczmarczyk, J, Kallenbach, A, Kaellne, J, Kalupin, D, Kalvin, S, Kamelander, G, Kamendje, R, Kappatou, A, Karttunen, S, Kasparek, W, Katramados, I, Kaufmann, M, Kaveney, G, Kaye, A, Kear, M, Keeling, D, Kelliher, D, Kempenaars, M, Khilar, P, Kidd, N, Kiisk, M, Kim, K, King, R, Kinna, D, Kiptily, V, Kirnev, G, Kirneva, N, Kirov, K, Kirschner, A, Kisielius, R, Kislov, D, Kiss, G, Kiviniemi, T, Kizane, G, Klein, A, Klix, A, Knaup, M, Kneuper, K, Kneupner, H, Knight, P, Knipe, S, Kocan, M, Koechl, F, Kocsis, G, Konz, C, Koppitz, T, Korotkov, A, Koslowski, H, Kotov, V, Kovari, M, Kovarik, K, Kramer, G, Krasilnikov, A, Krasilnikov, V, Kraus, S, Kreter, A, Krieger, K, Kritz, A, Krivchenkov, Y, Kruezi, U, Krychowiak, M, Krylov, S, Ksiazek, I, Kubic, M, Kuhn, S, Kuehnlein, W, Kurki Suonio, T, Kurowski, A, Kuteev, B, Kuyanov, A, La Haye, R, Laan, M, Labate, C, Lachichi, A, Lam, N, Lang, P, Large, M, Lassiwe, I, Last, J, Lawson, K, Layne, R, Lazzaro, E, Le Guern, F, Leblanc, B, Leggate, H, Lehnen, M, Leigheb, M, Lengar, I, Lennholm, M, Lerche, E, Lescure, C, Li, Y, Li Puma, A, Liang, Y, Likonen, J, Lin, Y, Linke, J, Linstead, S, Lipshultz, B, Litaudon, X, Litvak, A, Liu, Y, Loarer, T, Loarte, A, Lobel, R, Lomas, P, Long, F, Loennroth, J, Looker, D, Lopez, J, Lotte, P, Loughlin, M, Loving, A, Lowry, C, Luce, T, Lucock, R, Lukanitsa, A, Lungu, A, Lungu, C, Lyssoivan, A, Macheta, P, Mackenzie, A, Macrae, M, Maddaluno, G, Maddison, G, Madsen, J, Maget, P, Maggi, C, Maier, H, Mailloux, J, Makowski, M, Manning, C, Mansfield, M, Manso, M, Mantica, P, Mantsinen, M, Maraschek, M, Marchetto, C, Marchitti, M, Mardenfeld, M, Marechal, J, Marinelli, M, Marinoni, A, Marinucci, M, Maerki, J, Marocco, D, Marren, C, Martin, D, Martin, G, Martin, Y, Martin Solis, J, Masaki, K, Masiello, A, Maslov, M, Maszl, C, Matilal, A, Mattei, M, Matthews, G, Maviglia, F, May, C, Mayer, M, Mayoral, M, Mazon, D, Mazzotta, C, Mazzucato, E, Mccarthy, P, Mcclements, K, Mccormick, K, Mccullen, P, Mccune, D, Mcdonald, D, Mcgregor, R, Mckivitt, J, Meakins, A, Medina, F, Meigs, A, Menard, M, Meneses, L, Menmuir, S, Merrigan, I, Mertens, P, Messiaen, A, Meyer, H, Miano, G, Miele, M, Migliucci, P, Miller, A, Mills, S, Milnes, J, Min Kim, K, Mindham, T, Mirizzi, F, Mirones, E, Mironov, M, Mitteau, R, Mlynar, J, Mollard, P, Monakhov, I, Monier Garbet, P, Mooney, R, Moradi, S, Moreau, D, Moreau, P, Moreira, L, Morgan, A, Morgan, P, Morlock, C, Moro, A, Morris, A, Mort, G, Mrozek, C, Mueck, A, Mueller, H, Murakami, M, Murari, A, Mustata, I, Nabais, F, Nardon, E, Nash, G, Naulin, V, Nave, M, Nazikian, R, Nedzelski, I, Negus, C, Neilson, J, Neto, A, Neu, R, Neubauer, O, Newbert, G, Newman, M, Nicholls, K, Nicolai, A, Nicolas, L, Nieckchen, P, Nielsen, P, Nielsen, A, Nielsen, S, Nielson, G, Nieto, J, Nightingale, M, Noble, C, Nocente, M, Nora, M, Nordman, H, Norman, M, Noterdaeme, J, Nowak, S, Nunes, I, Ognissanto, F, O'Gorman, T, Olariu, S, Oleynikov, A, O'Mullane, M, Ongena, J, Orsitto, F, Oswuigwe, O, Ottaviani, M, Oyama, N, Pacella, D, Paget, K, Palazzo, S, Pamela, J, Pamela, S, Panek, R, Pangione, L, Panin, A, Panis, T, Pankin, A, Pantea, A, Parail, V, Parisot, T, Parkin, A, Parsloe, A, Parsons, B, Pasqualotto, R, Pastor, P, Paterson, R, Paul, M, Peach, D, Pearce, R, Pearson, B, Pearson, I, Pedrick, L, Pedrosa, M, Pegourie, B, Pereira, R, Perelli Cippo, E, Pereverzev, G, Perevezentsev, A, Perez von Thun, C, Pericoli Ridolfini, V, Perona, A, Perrot, Y, Peruzzo, S, Peschanyy, S, Petravich, G, Petrizzi, L, Petrov, V, Petrzilka, V, Philipps, V, Piazza, G, Piccolo, F, Pietropaolo, A, Pillon, M, Pinches, S, Pinna, T, Pintsuk, G, Piovesan, P, Pironti, A, Pisano, F, Pitts, R, Plaum, B, Plyusnin, V, Polasik, M, Poli, F, Pomaro, N, Pompilian, O, Poncet, L, Pool, P, Popovichev, S, Porcelli, F, Porfiri, M, Portafaix, C, Pospieszczyk, A, Possnert, G, Prestopino, G, Prior, P, Prokopowicz, R, Proverbio, L, Pugno, R, Puiatti, M, Purahoo, K, Pustovitov, V, Puetterich, T, Puettmann Kneupner, D, Quercia, A, Rachlew, E, Rademaker, R, Rafiq, T, Rainford, M, Ramogida, G, Rantamaeki, K, Rapp, J, Rasmussen, J, Ratta, G, Ravera, G, Reich, M, Reichle, R, Reiser, D, Reiss, R, Reiter, D, Rendell, D, Reux, C, Rewoldt, G, Ribeiro, T, Riccardo, V, Richards, D, Rigollet, F, Rimini, F, Rios, L, Riva, M, Roberts, J, Robins, R, Robinson, D, Robinson, S, Robson, D, Roche, H, Roedig, M, Rodionov, N, Rohde, V, Rolfe, A, Romanelli, M, Romano, A, Romero, J, Ronchi, E, Rosanvallon, S, Roux, C, Rowe, S, Rubel, M, Rubinacci, G, Ruchko, L, Ruiz, M, Ruset, C, Russell, M, Ruth, A, Ryc, L, Rydzy, A, Ryter, F, Rzadkiewicz, J, Saarelma, S, Sabathier, F, Sabot, R, Sadakov, S, Sagar, P, Saibene, G, Saille, A, Saint Laurent, F, Salmi, A, Salomaa, R, Salzedas, F, Samm, U, Sanchez, P, Sanders, S, Sandford, G, Sandland, K, Sandquist, P, Sands, D, Santala, M, Sartori, F, Sartori, R, Sauter, O, Savelyev, A, Savtchkov, A, Scales, S, Scarabosio, A, Schaefer, N, Schlatter, C, Schmidt, V, Schmidt, A, Schmitz, O, Schmuck, S, Schneider, M, Scholz, M, Schoepf, K, Schweer, B, Schweinzer, J, Scott, B, Seki, M, Semeraro, L, Semerok, A, Sergienko, G, Serra, F, Sertoli, M, Shannon, M, Sharapov, S, Shaw, S, Shevelev, A, Sievering, R, Silva, C, Simmons, P, Simonetto, A, Simpson, D, Sipila, S, Sips, A, Sirinelli, A, Sjoestrand, H, Skopintsev, D, Slabkowska, K, Smith, P, Snipes, J, Snoj, L, Snyder, S, Soare, S, Solano, E, Soldatov, S, Soleto, A, Solomon, W, Soltane, C, Sonato, P, Sopplesa, A, Sorrentino, A, Sousa, J, Sowden, C, Sozzi, C, Spaeh, P, Spelzini, T, Spence, J, Spineanu, F, Spuig, P, Staebler, A, Stagg, R, Stamp, M, Stancalie, V, Stangeby, P, Stan Sion, C, Starkey, D, Stead, M, Stephen, A, Stevens, A, Stober, J, Stokes, R, Stork, D, Stoyanov, D, Strachan, J, Strand, P, Stransky, M, Strauss, D, Strintzi, D, Studholme, W, Su Na, Y, Subba, F, Summers, H, Sun, Y, Surdu Bob, C, Surrey, E, Sutton, D, Svensson, J, Swain, D, Syme, B, Symonds, I, Szepesi, T, Szydlowski, A, Tabares, F, Takalo, V, Takenaga, H, Tala, T, Talbot, A, Taliercio, C, Tame, C, Tardini, G, Tardocchi, M, Taroni, L, Telesca, G, Terra, A, Terrington, A, Testa, D, Theis, J, Thomas, J, Thomas, P, Thompson, V, Thomsen, H, Thomser, C, Thyagaraja, A, Tigwell, P, Tiseanu, I, Tivey, R, Todd, J, Todd, T, Tokar, M, Tosti, S, Trabuc, P, Travere, J, Treutterer, W, Trimble, P, Trkov, A, Trukhina, E, Tsalas, M, Tsige Tamirat, H, Tsitrone, E, Tskhakaya, D, Tudisco, O, Tugarinov, S, Turner, M, Turri, G, Tyrrell, S, Umeda, N, Unterberg, B, Urano, H, Urquhart, A, Uytdenhouwen, I, Vaccaro, A, Vadgama, A, Vagliasindi, G, Valcarcel, D, Valisa, M, Vallory, J, Valovic, M, Van Eester, D, van Milligen, B, van Rooij, G, Varandas, C, Vartanian, S, Vdovin, V, Vega, J, Verdoolaege, G, Verger, J, Vermare, L, Verona, C, Versloot, T, Vervier, M, Vicente, J, Villari, S, Villedieu, E, Villone, F, Vince, J, Vine, G, Viola, B, Vitale, E, Vitelli, R, Vlad, M, Voitsekhovitch, I, Vrancken, M, Vulliez, K, Waldon, C, Walker, M, Walsh, M, Waterhouse, J, Watkins, M, Watson, M, Wauters, T, Way, M, Webb, C, Weiland, J, Weisen, H, Weiszflog, M, Wenninger, R, West, A, Weulersse, J, Weyssow, B, Wheatley, M, Whiteford, A, Whitehead, A, Whitehurst, A, Widdowson, A, Wieggers, R, Wiegmann, C, Wiesen, S, Wilson, A, Wilson, D, Wilson, H, Wischmeier, M, Witts, D, Wolf, R, Wolowski, J, Woscov, P, Wright, G, Wright, J, Xu, G, Yavorskij, V, Yerashok, V, Yorkshades, J, Young, C, Young, D, Young, I, Yuhong, X, Zabeo, L, Zabolotsky, A, Zaccarian, L, Zagorski, R, Zaitsev, F, Zajac, S, Zakharov, L, Zanino, R, Zaroschi, V, Zastrow, K, Zatz, I, Zefran, B, Zeidner, W, Zerbini, M, Zhang, T, Zhu, Y, Zilli, E, Zimmermann, O, Zoita, V, Zoletnik, S, Zwingman, W, Correction Romanelli, F, Albanese, R., Ambrosino, G., Andersson Sundén, E., Bécoulet, M., Bellizio, T., Belonohy, É., Bovert, K. V., Cação, R., Calabró, G., Carannante, G., Coccorese, V., 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., Del Castillo Negrete, D., Di Pace, L., Durodié, F., Formisano, Alessandro, Gál, K., Galvão, R., Garcia Munoz, M., Goloborod'Ko, V., Gonçalves, B., González De Vicente, S. M., Grünhagen, S., Hallworth Cook, S. P., Hühnerbein, M., Hynönen, V., Jupén, C., Källne, J., Kálvin, S., Köchl, F., Kühnlein, W., Le Guern, F., Lönnroth, J., Märki, J., Martín Solís, J. R., Mattei, Massimiliano, Miano, G., Müller, H. W., O'Gorman, T., O'Mullane, M., Perez Von Thun, C. h., Pironti, A., Pütterich, T. h., Püttmann Kneupner, D., Quercia, A., Rantamäki, K., Rattá, G., Rödig, M., Rubinacci, G., Schöpf, K., Sjöstrand, H., Slabkowska, K., Späh, P., Stäbler, A., Su Na, Y., Tskhakaya Jun, D., Van Milligen, B., Van Rooij, G. J., Xu, G. S., Faculdade de Engenharia, Kamendjea, R., Alarcon, Th., Andersson-Sundén, E., Andrew, P. L., Argouach, A., Balbao, I., Berger-By, G., Bergkvist, T., Coutois, X., David, E., De-Angelis, R., Del-Castillo-Negrete, D., De-Tommasi, G., Deveaux, S., Eich, Th., Erents, S. K., Gatu-Johnson, M., Holmström, K., Kurki-Suonio, T., Lauro Taroni, L., Laxaback, M., Liu, Y. Q., Llewellyn Smith, C., Maviglia, A., Mertens, Ph., Monier-Garbet, P., Moreau, Ph., Norris, C., Noterdaeme, J. -M., Paméla, J., Panis, Th., Parisot, Th., Perez Von Thun, C., Perez Von Thun, Ch., Pericoli-Ridolfini, V., Phillips, V., Pütterich, Th., Püttmann-Kneupner, D., Roux, Ch., Saint-Laurent, F., Schlatter, Ch., Sundelin, P., Surdu-Bob, C., Hompson, V. K., Tsige-Tamirat, H., Tskhakaya, D., Uytdenhoven, I., Versloot, Th., Villedieux, E., Walden, A. D., Paméla, J, and Jet, C
Subjects: Nuclear and High Energy Physics, 52.55.Fa Tokamaks, spherical tokamak, Materials science, Tokamak, Physics and Astronomy (all), Condensed Matter Physics, Física [Ciências exactas e naturais], Cyclotron, law.invention, Bootstrap current, Physical sciences [Natural sciences], law, Physics::Plasma Physics, ITER, divertor, FIS/03 - FISICA DELLA MATERIA, Nuclear and High Energy Physic, Jet (fluid), Safety factor, Divertor, 52.50.Qt Plasma heating by radio-frequency field, Settore FIS/01 - Fisica Sperimentale, magnetic confinement, Magnetic confinement fusion, Física, 52.55.Rk Power exhaust, JET, overview, Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin), Computational physics, Physical sciences, ICR, ICP, helicons, ___, JET, Beta (plasma physics), Atomic physics, tokamaks
Abstract: Since the last IAEA conference, the scientific programme of JET has focused on the qualification of the integrated operating scenarios for ITER and on physics issues essential for the consolidation of design choices and the efficient exploitation of ITER. Particular attention has been given to the characterization of the edge plasma, pedestal energy and edge localized modes (ELMs), and their impact on plasma facing components (PFCs). Various ELM mitigation techniques have been assessed for all ITER operating scenarios using active methods such as resonant magnetic field perturbation, rapid variation of the radial field and pellet pacing. In particular, the amplitude and frequency of type I ELMs have been actively controlled over a wide parameter range (q(95) = 3-4.8, beta(N)
Full Text: View/download PDF

29. Modelling reflectometry diagnostics: finite-difference time-domain simulation of reflectometry in fusion plasmas

Author: F. da Silva, E. Ricardo, T. T. Ribeiro, A. Silva, Stéphane Heuraux, Instituto de Plasmas e Fusão Nuclear [Lisboa] (IPFN), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Universidade de Lisboa (ULISBOA), and Max-Planck-Institut für Plasmaphysik [Garching] (IPP)
Subjects: Computer science, Finite-difference time-domain method, Fusion plasma, 020206 networking & telecommunications, 02 engineering and technology, Plasma, 01 natural sciences, 010305 fluids & plasmas, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Plasma diagnostics, Time domain, Reflectometry, Instrumentation, Mathematical Physics, Simulation methods
Abstract: International audience; Reflectometry simulations are particularly important since they allow to assess the measuring capabilities in experimental fusion devices and to predict the performance of future ones. We present a brief overview of reflectometry and introduce the family of REFMUL* codes for time-dependent reflectometry simulation. REFMUL* codes are Finite Di erence Time Domain (FDTD) that allow to set up synthetic diagnostics to assess the behaviour of reflectometry diagnostics. This is illustrated in the current manuscript using the example of the Plasma Position Reflectometers of DEMO. K : Nuclear instruments and methods for hot plasma diagnostics; Simulation methods and programs; Plasma diagnostics-interferometry, spectroscopy and imaging
Full Text: View/download PDF

30. The influence of finite ion temperature on plasma blob dynamics

Author: P. Manz, Ulrich Stroth, D. Carralero, T. T. Ribeiro, S. H. Müller, G. Birkenmeier, H. W. Müller, Bruce D. Scott, E. Wolfrum, G. Fuchert, and ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society
Subjects: Physics, Fusion, Tokamak, Dynamics (mechanics), Ion temperature, Plasma, Vorticity, Condensed Matter Physics, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, law.invention, Computational physics, Nuclear Energy and Engineering, ASDEX Upgrade, Physics::Plasma Physics, law, 0103 physical sciences, Electron temperature, Atomic physics, 010306 general physics
Abstract: In the scrape-off layer of magnetically confined fusion devices, the ion temperature is at least as high as the electron temperature and usually even much higher. The effects of the finite ion temperature enhance the blob drive and modify the vorticity. Recently developed scaling laws for blob velocity independent of its size, based on the full drift-interchange-Alfven fluid equations are compared with recent experiments on the ASDEX Upgrade tokamak and gyrofluid simulations, showing remarkable agreement for the blob sizes and reasonable agreement for the blob velocities.
Full Text: View/download PDF

31. Magnetic configuration effects on the Reynolds stress in the plasma edge

Author: Mirko Ramisch, Bruce D. Scott, B. Schmid, T. T. Ribeiro, P. Manz, A. Stegmeir, Nicolas Fedorczak, Klaus Hallatschek, S. Garland, and G. Birkenmeier
Subjects: Physics, Tokamak, Turbulence, Divertor, Mechanics, Reynolds stress, Condensed Matter Physics, 01 natural sciences, 010305 fluids & plasmas, law.invention, Magnetic field, Physics::Fluid Dynamics, Physics::Plasma Physics, law, Residual stress, Electric field, 0103 physical sciences, Limiter, 010306 general physics
Abstract: Breaking the poloidal symmetry of the magnetic shear induced tilt of turbulent structures, by either divertor X-point resistivity or limiter positions, can lead to a finite (residual) contribution to the flux-surface averaged radial-binormal Reynolds stress. This residual stress supports or works against the radial electric field at the plasma edge of a tokamak. The impact of divertor geometry on the poloidal pattern of the Reynolds stress is studied by flux-coordinate-independent fluid simulations. Clear modifications of the Reynolds stress are found due to the magnetic shear in the confined region. The impact of different poloidal limiter positions on the radial electric field and the Reynolds stress is studied by means of magnetic field aligned gyrofluid simulations. Only if the limiter is close to the outer midplane can its position have a substantial effect on the radial electric field.
Full Text: View/download PDF

32. Turbulent transport across shear layers in magnetically confined plasmas

Author: Ulrich Stroth, P. Manz, G. Birkenmeier, Mirko Ramisch, H. W. Müller, Bernhard Nold, T. T. Ribeiro, G. Fuchert, and Bruce D. Scott
Subjects: Physics::Fluid Dynamics, Physics, Shear layer, Break-Up, Shear (geology), Turbulence, Plasma turbulence, Plasma diagnostics, Statistical physics, Plasma, Mechanics, Condensed Matter Physics
Abstract: Shear layers modify the turbulence in diverse ways and do not only suppress it. A spatial-temporal investigation of gyrofluid simulations in comparison with experiments allows to identify further details of the transport process across shear layers. Blobs in and outside a shear layer merge, thereby exchange particles and heat and subsequently break up. Via this mechanism particles and heat are transported radially across shear layers. Turbulence spreading is the immanent mechanism behind this process.
Full Text: View/download PDF

33. A first full wave simulation assessment of reflectometry for DTT

Author: F. da Silva, T. T. Ribeiro, J. Ferreira, Roberto Cavazzana, A. Silva, Stéphane Heuraux, O. D'Arcangelo, E. Ricardo, G. De Masi, O. Tudisco, Instituto de Plasmas e Fusão Nuclear [Lisboa] (IPFN), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), Ricerca Formazione Innovazione (Consorzio RFX), Consiglio Nazionale delle Ricerche (CNR), Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Max-Planck-Institut für Plasmaphysik [Garching] (IPP), Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, and Consiglio Nazionale delle Ricerche [Roma] (CNR)
Subjects: Signal processing, Tokamak, Computer simulation, 010308 nuclear & particles physics, Computer science, Divertor, Finite-difference time-domain method, 01 natural sciences, 7. Clean energy, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, Full wave, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], law, 0103 physical sciences, Electronic engineering, Reflectometry, Instrumentation, Waveguide, Mathematical Physics
Abstract: International audience; The Divertor Test Tokamak (DTT) facility is being proposed to study the exhaust solutions in tokamaks with a special look on DEMO, searching for alternatives to ITER's detached condition operation, for the case this solution proves inadequate. To know about the physical processes occurring in the plasma or for engineering needs and control uses, diagnostics play a major role and reflectometry, foreseen in the forthcoming generation of machines such as ITER and DEMO, is a useful asset for DTT. Assessing the di erent areas and applications that could be deployed on DTT is of significant importance from an early stage. We propose, therefore, to use numerical simulation using finite-di erence time-domain codes (FDTD) of the REFMUL* family to implement synthetic reflectometry diagnostics. Di erent aspects are included such as propagation in the plasma, optimisation of the system location within the vacuum vessel, its access to the plasma (waveguide and antennas), or the signal processing techniques.
Full Text: View/download PDF

34. The influence of finite ion temperature on plasma blob dynamics.

Author: P Manz, G Birkenmeier, U Stroth, D Carralero, H W Müller, B D Scott, T T Ribeiro, E Wolfrum, G Fuchert, and S H Müller
Subjects: ION temperature, BINARY large objects, ELECTRON temperature, VORTEX motion, SCALING laws (Nuclear physics), PLASMA boundary layers
Abstract: In the scrape-off layer of magnetically confined fusion devices, the ion temperature is at least as high as the electron temperature and usually even much higher. The effects of the finite ion temperature enhance the blob drive and modify the vorticity. Recently developed scaling laws for blob velocity independent of its size, based on the full drift-interchange-Alfvén fluid equations are compared with recent experiments on the ASDEX Upgrade tokamak and gyrofluid simulations, showing remarkable agreement for the blob sizes and reasonable agreement for the blob velocities. [ABSTRACT FROM AUTHOR]
Published: 2015
Full Text: View/download PDF

35. Artificial intelligence and high-resolution anoscopy: automatic identification of anal squamous cell carcinoma precursors using a convolutional neural network.

Author: Saraiva MM, Spindler L, Fathallah N, Beaussier H, Mamma C, Quesnée M, Ribeiro T, Afonso J, Carvalho M, Moura R, Andrade P, Cardoso H, Adam J, Ferreira J, Macedo G, and de Parades V
Subjects: Artificial Intelligence, Humans, Neural Networks, Computer, Anus Neoplasms diagnostic imaging, Anus Neoplasms pathology, Carcinoma, Squamous Cell diagnostic imaging, Carcinoma, Squamous Cell pathology, Squamous Intraepithelial Lesions
Abstract: Background: High-resolution anoscopy (HRA) is the gold standard for detecting anal squamous cell cancer (ASCC) precursors. Although it is superior to other diagnostic methods, particularly cytology, the visual identification of areas suspected of having high-grade squamous intraepithelial lesions remains difficult. Convolutional neural networks (CNNs) have shown great potential for assessing endoscopic images. The aim of the present study was to develop a CNN-based system for automatic detection and differentiation of HSIL versus LSIL in HRA images., Methods: A CNN was developed based on 78 HRA exams from a total of 71 patients who underwent HRA at a single high-volume center (GH Paris Saint-Joseph, Paris, France) between January 2021 and January 2022. A total of 5026 images were included, 1517 images containing HSIL and 3509 LSIL. A training dataset comprising 90% of the total pool of images was defined for the development of the network. The performance of the CNN was evaluated using an independent testing dataset comprising the remaining 10%. The sensitivity, specificity, accuracy, positive and negative predictive values, and area under the curve (AUC) were calculated., Results: The algorithm was optimized for the automatic detection of HSIL and its differentiation from LSIL. Our model had an overall accuracy of 90.3%. The CNN had sensitivity, specificity, positive and negative predictive values of 91.4%, 89.7%, 80.9%, and 95.6%, respectively. The area under the curve was 0.97., Conclusions: The CNN architecture for application to HRA accurately detected precursors of squamous anal cancer. Further development and implementation of these tools in clinical practice may significantly modify the management of these patients., (© 2022. Springer Nature Switzerland AG.)
Published: 2022
Full Text: View/download PDF

36. Rheological evolution of straw-cattle manure (SCM) treated by dry anaerobic digestion in batch and in continuous pilot reactors.

Author: Hernandez-Shek MA, Peultier P, Pauss A, and Ribeiro T
Subjects: Anaerobiosis, Animals, Biomass, Cattle, Methane, Rheology, Bioreactors, Manure
Abstract: Knowledge of rheological evolution of biomass during dry anaerobic digestion (D-AD) is important in the engineering design, modeling, and operation of D-AD reactors. In this work, two methods of rheological analysis, the slump test and the shear-box, were used to measure the evolution of the yield stress, cohesion and friction angle of the straw-cattle manure (SCM) during the D-AD. Firstly, four 60 L batch leach-bed reactors (LBR) were started in parallel and stopped at different stages of the D-AD process on days 0, 10, 21 and 31. Secondly, a 500 L and 2 m length plug flow reactor (PFR) was operated with 40 days of solid retention time and samples were recovered at different positions. The solid degradation during D-AD process was monitored by analysis of the degradation of volatile solids, the fiber content and the Flash BMP. Similar degradation patterns of SCM and rheological evolution were observed in both reactors type. VS content decreased of 10.7% and 10.2% in 30 days in PFR and LBR respectively. VS degradation in both cases was well explained by hemicellulose and cellulose consuming in D-AD process. Considering the rheological analysis, the results showed that D-AD induced a reduction of the yield stress of 28.1 and 24.2% in 30 days in PFR and LBR respectively. Moreover, a similar evolution of cohesion and friction angle value for samples from both reactors was observed. This study demonstrates the close relationship between the state of degradation of the solid biomass and its rheological properties., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
Published: 2022
Full Text: View/download PDF

37. Artificial intelligence and colon capsule endoscopy: development of an automated diagnostic system of protruding lesions in colon capsule endoscopy.

Author: Saraiva MM, Ferreira JPS, Cardoso H, Afonso J, Ribeiro T, Andrade P, Parente MPL, Jorge RN, and Macedo G
Subjects: Artificial Intelligence, Colon diagnostic imaging, Colonoscopy, Humans, Retrospective Studies, Capsule Endoscopy, Colorectal Neoplasms diagnostic imaging
Abstract: Background: Colon capsule endoscopy (CCE) is a minimally invasive alternative for patients unwilling to undergo conventional colonoscopy, or for whom the latter exam is contraindicated. This is particularly important in the setting of colorectal cancer screening. Nevertheless, these exams produce large numbers of images, and reading them is a monotonous and time-consuming task, with the risk of overlooking important lesions. The development of automated tools based on artificial intelligence (AI) technology may improve some of the drawbacks of this diagnostic instrument., Methods: A database of CCE images was used for development of a Convolutional Neural Network (CNN) model. This database included anonymized images of patients with protruding lesions in the colon or patients with normal colonic mucosa or with other pathologic findings. A total of 3,387,259 frames from 24 CCE exams were retrospectively reviewed. For CNN development, 3640 images (860 protruding lesions and 2780 with normal mucosa or other findings) were ultimately extracted. Training and validation datasets were constructed for the development and testing of the CNN., Results: The CNN detected protruding lesions with a sensitivity, specificity, positive and negative predictive values of 90.7, 92.6, 79.2 and 96.9%, respectively. The area under the receiver operating characteristic curve for detection of protruding lesions was 0.97., Conclusions: The deep learning algorithm we developed is capable of accurately detecting protruding lesions. The application of AI technology to CCE may increase its diagnostic accuracy and acceptance for screening of colorectal neoplasia., (© 2021. Springer Nature Switzerland AG.)
Published: 2021
Full Text: View/download PDF

38. Role of enteroscopy in the diagnosis of whipple's disease.

Author: Mascarenhas Saraiva M, Ribeiro T, Costa Pereira T, Andrade P, Cardoso H, and Macedo G
Subjects: Anti-Bacterial Agents therapeutic use, Duodenum diagnostic imaging, Endoscopy, Gastrointestinal, Humans, Tropheryma, Whipple Disease diagnosis, Whipple Disease drug therapy
Abstract: Whipple's disease is a rare chronic systemic infection caused by Tropheryma whipplei. The widespread infection by this rod is responsible for the protean clinical manifestations of the disease, although its classical form is notable for the prevalence of abdominal symptoms such as chronic diarrhea and abdominal pain. Whitish-yellow patches, suggestive of lymphangiectasia, are typically observed in the duodenum during upper endoscopy. The diagnosis of this condition is supported by the identification in duodenal biopsies of Periodic acid-Schiff staining within lamina propria macrophages. Nevertheless, a significant portion of patients do not have lesions within the range of conventional upper endoscopy. Therefore, other endoscopic procedures such as video capsule endoscopy and enteroscopy may be useful to detect more distal lesions. The authors describe a case where the combined used of both techniques allowed the unmasking of this disease., Competing Interests: The authors declare that they have no conflict of interest, (© Acta Gastro-Enterologica Belgica.)
Published: 2021
Full Text: View/download PDF

39. Semiquantitative analysis of interim 18 F-FDG PET is superior in predicting outcome in Hodgkin lymphoma patients compared to visual analysis.

Author: Ribeiro T, Marques A, Ferreira G, Castro C, Tavares M, Espírito-Santo A, Moreira C, and Mariz J
Subjects: Adult, Epidemiologic Methods, Female, Glycolysis, Hodgkin Disease drug therapy, Hodgkin Disease metabolism, Hodgkin Disease pathology, Humans, Male, Physical Examination methods, Portugal, Prognosis, Recurrence, Treatment Outcome, Tumor Burden, Fluorodeoxyglucose F18 pharmacokinetics, Hodgkin Disease diagnostic imaging, Positron-Emission Tomography methods, Radiopharmaceuticals pharmacokinetics
Abstract: Purpose: To investigate the prognostic value of interim PET (PETi) in adult HL patients, comparing visual with semiquantitative analysis., Material and Methods: Retrospective analysis of Hodgkin's lymphoma (HL) patients diagnosed between 2012 and 2016 in the Onco-hematology Department of Instituto Português de Oncologia - Porto (median follow-up: 46.5 months [2.6-66.4]). Fifty-eight patients with available PET at diagnosis (PET0) and PETi data were included. PETi scans were analyzed according to Deauville 5-point scale (5-PS), and cut-off values for changes in maximum standardized uptake value [SUVmax], peak SUV [SUVpeak], metabolic tumour volume [MTV] and total lesion glycolysis index [TLG] between PETi and PET0 were computed using ROC analysis. Visual and semiquantitative data were compared with each other in the prediction of patient outcomes., Results: Semiquantitative analysis obtained a higher sensitivity for persistent/relapsed disease compared to the 5-PS (70% vs. 10%, respectively), but lower specificity. It also demonstrated better predictive performance for response to first-line therapy (negative predictive value >92%). The positive predictive value was similar for all five measurements. At 60 months of follow-up, there was a significant difference between the progression free survival (PFS) curves of patients with positive and negative PETi according to ΔSUVmax (56.9% vs. 88.0%, p<0.05), ΔSUVpeak (55.9% vs. 88.1%, p<0.05), ΔMTV (35.3% vs. 88.7%, p<0.05), and ΔTLG (42.4% vs. 88.1%, p<0.05). Statistical significance was not reached when considering 5-PS results., Discussion: PETi interpretation according to a semiquantitative approach appears to discriminate HL patients better than the visual 5-PS analysis. This could allow better detection of persistent or early relapsed disease, while a negative PETi result could support de-escalating therapy intensity., (Copyright © 2020 Sociedad Española de Medicina Nuclear e Imagen Molecular. Published by Elsevier España, S.L.U. All rights reserved.)
Published: 2021
Full Text: View/download PDF

40. Duodenal metastasis of breast invasive carcinoma of no special type: a rare presentation.

Author: Mascarenhas Saraiva M, Ribeiro T, Coelho AR, Silva R, Real AC, and Macedo G
Subjects: Female, Humans, Breast Neoplasms, Carcinoma, Lobular
Abstract: Competing Interests: The authors declare that they have no conflict of interest
Published: 2021
Full Text: View/download PDF

41. Feeding aspects of Knodus heteresthes (Eigenmann, 1908) and Moenkhausia lepidura (Kner, 1858) (Characiformes, Characidae) in the Teles Pires and Juruena Rivers, southern Amazon.

Author: Oliveira E, Ignácio ARA, Lázaro WL, Muniz CC, Campos DVS, Costa JVM, Ribeiro T, and Santos-Filho M
Subjects: Animals, Brazil, Rivers, Vegetables, Arthropods, Characidae, Characiformes
Abstract: The composition of the diet of two species of characids (Knodus heteresthes and Moenkhausia lepidura) was evaluated in the Teles Pires and Juruena Rivers, sampled in September and October 2016. We analyzed 226 stomachs of K. heteresthes and 425 of M. lepidura. The analysis of the stomach contents was based on volumetric and frequency of occurrence methods, applying the food importance index. For the similarity of the diets between the species we calculated the niche overlap with Pianka's index. Both species in the Juruena River have a dietary preference for arthropods (IAi > 0.95). In the Teles Pires River the diet is concentrated in three sources for both species: arthropods (IAi > 0.52), vegetables (IAi > 0.33) and fish (IAi > 0.12). The diet was dissimilar when compared to environments (ANOSIM, R ≥ 0.57, p < 0.001) with high trophic niche overlap (α > 0.97), regardless of the sampled environment. In the Teles Pires River, both species were classified as omnivorous with an insectivorous tendency and in the Juruena River the insectivorous behaviour occurs.
Published: 2021
Full Text: View/download PDF

42. Dry anaerobic co-digestion of roadside grass and cattle manure at a 60 L batch pilot scale.

Author: André L, Zdanevitch I, Pineau C, Lencauchez J, Damiano A, Pauss A, and Ribeiro T
Subjects: Anaerobiosis, Animals, Bioreactors, Cattle, Methane metabolism, Pilot Projects, Manure, Poaceae metabolism
Abstract: Roadside grass cuttings and solid cattle manure are resources that are available as input for dry anaerobic co-digestion. Two series of measurements were carried out, one in June 2016 and one in October 2016. The methane potentials were determined on a laboratory scale and revealed a high degree of seasonality, 202.9 and 167.9 Nm 3 .t CH4 .t VS .t -1 , respectively. Moreover, these substrates were co-digested in reactors by the dry process on a pilot scale (60 L). Two strategies for filling and optimization, as layers or as a mixture, were compared. The seasonality also determined the physicochemical parameters and the hydrodynamic properties involved in percolation of the liquid phase recirculated in the dry digestion process. The production of methane depended on the filling method, the seasonality, and the nature of the input, which in some cases resulted in inhibition of 34.8-44.4 Nm 3 CH4 .t VS -1 ., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
Published: 2019
Full Text: View/download PDF

43. Massive hemorrhage protocol activation in obstetrics: a 5-year quality performance review.

Author: Margarido C, Ferns J, Chin V, Ribeiro T, Nascimento B, Barrett J, Herer E, Halpern S, Andrews L, Ballatyne G, Chapmam M, Gomes J, and Callum J
Subjects: Adult, Blood Transfusion methods, Delivery, Obstetric, Female, Humans, Obstetric Labor Complications diagnosis, Postpartum Hemorrhage diagnosis, Pregnancy, Retrospective Studies, Young Adult, Clinical Protocols, Guideline Adherence statistics & numerical data, Obstetric Labor Complications therapy, Postpartum Hemorrhage therapy, Quality Control, Quality Indicators, Health Care statistics & numerical data
Abstract: Background: A structured approach to hemorrhagic emergencies in obstetrics has gained popularity with the implementation of massive hemorrhage protocols. The trauma literature suggests that routine quality reviews should be in place to improve patient outcomes. The aim of this study was to develop quality indicators and assess compliance by the clinical team., Methods: A multidisciplinary team set the institutional quality indicators for the massive hemorrhage protocol review. A retrospective review of all obstetrical massive hemorrhage protocol activation events from September 2010 to January 2015 was performed. All protocol events occurred before the creation of the quality indicators. Data were retrieved from patient records., Results: There were 17 (0.09%) protocol activations for 19 790 deliveries during the study period. All 17 (100%) patients received at least one unit of red blood cells. Overactivation, defined as the transfusion of <2 units of red blood cells, occurred in two cases (12%). Common causes of non-compliance were: 24% (4/17) temperature monitoring, 18% (3/17) lactate measurement, 41% (7/17) arterial blood gas sampling, and 18% (3/17) hemoglobin maintenance within the target range of 55-95 g/L. Admission to intensive care and peripartum hysterectomy occurred in 12 and 5 cases (71% and 29%), respectively., Conclusions: Suboptimal compliance was found in multiple areas, which may be attributable to the low frequency of activation of our massive haemorrhage protocol in obstetrics. The quality targets identified in this report can act as a basis for other institutions developing quality indicators to evaluate performance., (Copyright © 2018. Published by Elsevier Ltd.)
Published: 2019
Full Text: View/download PDF

44. Xylo-oligosaccharides display a prebiotic activity when used to supplement wheat or corn-based diets for broilers.

Author: Ribeiro T, Cardoso V, Ferreira LMA, Lordelo MMS, Coelho E, Moreira ASP, Domingues MRM, Coimbra MA, Bedford MR, and Fontes CMGA
Subjects: Animals, Chickens growth & development, Male, Random Allocation, Triticum, Zea mays, Animal Feed analysis, Chickens metabolism, Diet veterinary, Glucuronates pharmacology, Oligosaccharides pharmacology, Prebiotics
Abstract: It is now well established that exogenous β-1,4-xylanases improve the nutritive value of wheat-based diets for poultry. Among other factors, the mechanism of action of exogenous enzymes may involve a microbial route resulting from the generation of prebiotic xylo-oligosaccharides (XOS) in the birds' gastro-intestinal (GI) tract. In a series of three experiments, the effect of XOS on the performance of broilers fed wheat or corn-based diets was investigated. In experiment 1, birds receiving diets supplemented with XOS displayed an increased weight gain (P = 0.08). The capacity of XOS to improve the performance of animals during a longer trial (42 d) was investigated (Experiment 2). The data revealed that diet supplementation with XOS, tested at two incorporation rates (0.1 and 1 g/kg), or with an exogenous β-1,4-xylanase resulted in an increased nutritive value of the wheat-based diet. An improvement in animal performance was accompanied by a shift in the microbial populations colonizing the upper portions of the GI tract. XOS were also able to improve the performance of broilers fed a corn-based diet, although the effects were not apparent at incorporation rates of 10 g/kg. Together these studies suggest that in some cases the capacity of β-1,4-xylanases to improve the nutritive value of wheat-based diets is more related to their ability to produce prebiotic XOS than to their ability to degrade arabinoxylans. The extremely low quantities of XOS used in this study also challenge the depiction of a prebiotic being a quantitatively fermented substrate. These data also bring into question the validity of the "cell wall" mechanism, as XOS elicited an effect with clearly no action on endosperm cell wall integrity and yet the performance effects noted were equivalent or superior to the added enzymes.
Published: 2018
Full Text: View/download PDF

45. GHEP-ISFG collaborative exercise on mixture profiles (GHEP-MIX06). Reporting conclusions: Results and evaluation.

Author: Barrio PA, Crespillo M, Luque JA, Aler M, Baeza-Richer C, Baldassarri L, Carnevali E, Coufalova P, Flores I, García O, García MA, González R, Hernández A, Inglés V, Luque GM, Mosquera-Miguel A, Pedrosa S, Pontes ML, Porto MJ, Posada Y, Ramella MI, Ribeiro T, Riego E, Sala A, Saragoni VG, Serrano A, and Vannelli S
Subjects: Humans, Likelihood Functions, Research Report standards, Software, DNA Fingerprinting standards, Forensic Genetics standards, Laboratories statistics & numerical data, Microsatellite Repeats, Societies, Scientific
Abstract: One of the main goals of the Spanish and Portuguese-Speaking Group of the International Society for Forensic Genetics (GHEP-ISFG) is to promote and contribute to the development and dissemination of scientific knowledge in the field of forensic genetics. Due to this fact, GHEP-ISFG holds different working commissions that are set up to develop activities in scientific aspects of general interest. One of them, the Mixture Commission of GHEP-ISFG, has organized annually, since 2009, a collaborative exercise on analysis and interpretation of autosomal short tandem repeat (STR) mixture profiles. Until now, six exercises have been organized. At the present edition (GHEP-MIX06), with 25 participant laboratories, the exercise main aim was to assess mixture profiles results by issuing a report, from the proposal of a complex mock case. One of the conclusions obtained from this exercise is the increasing tendency of participating laboratories to validate DNA mixture profiles analysis following international recommendations. However, the results have shown some differences among them regarding the edition and also the interpretation of mixture profiles. Besides, although the last revision of ISO/IEC 17025:2017 gives indications of how results should be reported, not all laboratories strictly follow their recommendations. Regarding the statistical aspect, all those laboratories that have performed statistical evaluation of the data have employed the likelihood ratio (LR) as a parameter to evaluate the statistical compatibility. However, LR values obtained show a wide range of variation. This fact could not be attributed to the software employed, since the vast majority of laboratories that performed LR calculation employed the same software (LRmixStudio). Thus, the final allelic composition of the edited mixture profile and the parameters employed in the software could explain this data dispersion. This highlights the need, for each laboratory, to define through internal validations its criteria for editing and interpreting mixtures, and to continuous train in software handling., (Copyright © 2018 Elsevier B.V. All rights reserved.)
Published: 2018
Full Text: View/download PDF

46. Variation in levels of non-starch polysaccharides and endogenous endo-1,4-β-xylanases affects the nutritive value of wheat for poultry.

Author: Cardoso V, Fernandes EA, Santos HMM, Maçãs B, Lordelo MM, Telo da Gama L, Ferreira LMA, Fontes CMGA, and Ribeiro T
Subjects: Animal Feed analysis, Animal Nutritional Physiological Phenomena, Animals, Diet veterinary, Dietary Supplements analysis, Dose-Response Relationship, Drug, Endo-1,4-beta Xylanases administration & dosage, Plant Extracts chemistry, Random Allocation, Viscosity, Chickens physiology, Endo-1,4-beta Xylanases metabolism, Nutritive Value, Polysaccharides metabolism, Triticum chemistry
Abstract: 1. Endo-1,4-β-xylanase is known to improve the nutritive value of wheat-based diets for poultry by degrading dietary arabinoxylans. However, broilers' response to supplementation of wheat-based diets with exogenous endo-1,4-β-xylanase is not always observed. 2. In this study, 108 different wheat lots were analysed for levels of extract viscosity as well as for endogenous endo-1,4-β-xylanase activity, and the impact of these two variables in animal performance was tested. 3. Results revealed that endogenous endo-1,4-β-xylanase activity and extract viscosity content varied widely among different wheat lots. Thus, a trial was conducted to evaluate the efficacy of exogenous enzyme supplementation in broiler diets using wheats with different levels of extract viscosity and endogenous endo-1,4-β-xylanase activity. 4. The data revealed that exogenous enzyme supplementation was only effective when the wheat present in the diet had high levels of extract viscosity (14.8 cP) with low endogenous endo-1,4-β-xylanase activity (347.0 U/kg). Nevertheless, it is apparent that exogenous microbial xylanases reduce digesta extract viscosity and feed conversion ratio independently of the endogenous properties presented by different wheat lots. 5. The data suggest that extract viscosity and/or endogenous endo-1,4-β-xylanase activity affect the response to enzyme supplementation by poultry fed on wheat-based diets.
Published: 2018
Full Text: View/download PDF

47. A GHEP-ISFG collaborative study on the genetic variation of 38 autosomal indels for human identification in different continental populations.

Author: Pereira R, Alves C, Aler M, Amorim A, Arévalo C, Betancor E, Braganholi D, Bravo ML, Brito P, Builes JJ, Burgos G, Carvalho EF, Castillo A, Catanesi CI, Cicarelli RMB, Coufalova P, Dario P, D'Amato ME, Davison S, Ferragut J, Fondevila M, Furfuro S, García O, Gaviria A, Gomes I, González E, Gonzalez-Liñan A, Gross TE, Hernández A, Huang Q, Jiménez S, Jobim LF, López-Parra AM, Marino M, Marques S, Martínez-Cortés G, Masciovecchio V, Parra D, Penacino G, Pinheiro MF, Porto MJ, Posada Y, Restrepo C, Ribeiro T, Rubio L, Sala A, Santurtún A, Solís LS, Souto L, Streitemberger E, Torres A, Vilela-Lamego C, Yunis JJ, Yurrebaso I, and Gusmão L
Subjects: DNA Fingerprinting, Databases, Nucleic Acid, Ethnicity genetics, Gene Frequency, Genotype, Humans, Laboratories statistics & numerical data, Microsatellite Repeats, Genetics, Population, INDEL Mutation, Polymorphism, Single Nucleotide, Racial Groups genetics
Abstract: A collaborative effort was carried out by the Spanish and Portuguese Speaking Working Group of the International Society for Forensic Genetics (GHEP-ISFG) to promote knowledge exchange between associate laboratories interested in the implementation of indel-based methodologies and build allele frequency databases of 38 indels for forensic applications. These databases include populations from different countries that are relevant for identification and kinship investigations undertaken by the participating laboratories. Before compiling population data, participants were asked to type the 38 indels in blind samples from annual GHEP-ISFG proficiency tests, using an amplification protocol previously described. Only laboratories that reported correct results contributed with population data to this study. A total of 5839 samples were genotyped from 45 different populations from Africa, America, East Asia, Europe and Middle East. Population differentiation analysis showed significant differences between most populations studied from Africa and America, as well as between two Asian populations from China and East Timor. Low F ST values were detected among most European populations. Overall diversities and parameters of forensic efficiency were high in populations from all continents., (Copyright © 2017 Elsevier B.V. All rights reserved.)
Published: 2018
Full Text: View/download PDF

48. Hybrid mesoporous silica nanocarriers with thermovalve-regulated controlled release.

Author: Ribeiro T, Coutinho E, Rodrigues AS, Baleizão C, and Farinha JPS
Subjects: Polymers, Delayed-Action Preparations, Drug Carriers chemistry, Nanoparticles chemistry, Silicon Dioxide
Abstract: Mesoporous silica nanoparticles (MSNs) are excellent nanocarriers, featuring very high cargo capacity due to their large surface area and pore volume. The particle and pore dimensions can be accurately tuned, and both the internal and external surfaces allow versatile functionalization. We developed hybrid MSNs with diameters around 140 nm, with the external surface selectively modified with a temperature-responsive biocompatible copolymer to control cargo release. The nanoparticles feature either a polymer brush or a gel-like responsive shell, produced by grafting from RAFT polymerization of PEG-acrylate macromonomers. The hybrid nanoparticles have fluorescent molecules incorporated into the inorganic network providing excellent optical properties for traceability and imaging. The cargo release profiles are explained by a temperature-controlled "pumping" mechanism: at low temperature (ca. 20 °C) the polymer shell is hydrophilic and expanded, opposing cargo diffusion out of the shell and retaining the molecules released from the mesopores; above room temperature (ca. 40-50 °C) the polymer network becomes more hydrophobic and collapses onto the silica surface, releasing the cargo by a sponge-like squeezing effect. The release kinetics depends on the polymer shell type, with better results obtained for the gel-coated nanoparticles. Our proof-of-concept system shows that by modulating the temperature, it is possible to achieve a pumping regime that increases the release rate in a controlled way.
Published: 2017
Full Text: View/download PDF

49. A modified method for COD determination of solid waste, using a commercial COD kit and an adapted disposable weighing support.

Author: André L, Pauss A, and Ribeiro T
Subjects: Agriculture, Anaerobiosis, Animals, Cattle, Cellulose chemistry, Glucose chemistry, Manure, Oxygen chemistry, Phthalic Acids chemistry, Plastics chemistry, Reproducibility of Results, Sewage, Solid Waste, Waste Disposal, Fluid methods, Biological Oxygen Demand Analysis, Waste Management methods
Abstract: The chemical oxygen demand (COD) is an essential parameter in waste management, particularly when monitoring wet anaerobic digestion processes. An adapted method to determine COD was developed for solid waste (total solids >15%). This method used commercial COD tubes and did not require sample dilution. A homemade plastic weighing support was used to transfer the solid sample into COD tubes. Potassium hydrogen phthalate and glucose used as standards showed an excellent repeatability. A small underestimation of the theoretical COD value (standard values around 5% lower than theoretical values) was also observed, mainly due to the intrinsic COD of the weighing support and to measurement uncertainties. The adapted COD method was tested using various solid wastes in the range of 1-8 mg COD , determining the COD of dried and ground cellulose, cattle manure, straw and a mixed-substrate sample. This new adapted method could be used to monitor and design dry anaerobic digestion processes.
Published: 2017
Full Text: View/download PDF

50. Analysis of uni and bi-parental markers in mixture samples: Lessons from the 22nd GHEP-ISFG Intercomparison Exercise.

Author: Toscanini U, Gusmão L, Álava Narváez MC, Álvarez JC, Baldassarri L, Barbaro A, Berardi G, Betancor Hernández E, Camargo M, Carreras-Carbonell J, Castro J, Costa SC, Coufalova P, Domínguez V, Fagundes de Carvalho E, Ferreira STG, Furfuro S, García O, Goios A, González R, de la Vega AG, Gorostiza A, Hernández A, Jiménez Moreno S, Lareu MV, León Almagro A, Marino M, Martínez G, Miozzo MC, Modesti NM, Onofri V, Pagano S, Pardo Arias B, Pedrosa S, Penacino GA, Pontes ML, Porto MJ, Puente-Prieto J, Pérez RR, Ribeiro T, Rodríguez Cardozo B, Rodríguez Lesmes YM, Sala A, Santiago B, Saragoni VG, Serrano A, Streitenberger ER, Torres Morales MA, Vannelli Rey SA, Velázquez Miranda M, Whittle MR, Fernández K, and Salas A
Subjects: Amelogenin genetics, Blood Chemical Analysis, Female, Forensic Genetics, Genetic Markers, Haplotypes, Humans, Male, Saliva chemistry, Semen chemistry, Chromosomes, Human, X, Chromosomes, Human, Y, DNA Fingerprinting, DNA, Mitochondrial genetics, Laboratories standards, Microsatellite Repeats
Abstract: Since 1992, the Spanish and Portuguese-Speaking Working Group of the ISFG (GHEP-ISFG) has been organizing annual Intercomparison Exercises (IEs) coordinated by the Quality Service at the National Institute of Toxicology and Forensic Sciences (INTCF) from Madrid, aiming to provide proficiency tests for forensic DNA laboratories. Each annual exercise comprises a Basic (recently accredited under ISO/IEC 17043: 2010) and an Advanced Level, both including a kinship and a forensic module. Here, we show the results for both autosomal and sex-chromosomal STRs, and for mitochondrial DNA (mtDNA) in two samples included in the forensic modules, namely a mixture 2:1 (v/v) saliva/blood (M4) and a mixture 4:1 (v/v) saliva/semen (M8) out of the five items provided in the 2014 GHEP-ISFG IE. Discrepancies, other than typos or nomenclature errors (over the total allele calls), represented 6.5% (M4) and 4.7% (M8) for autosomal STRs, 15.4% (M4) and 7.8% (M8) for X-STRs, and 1.2% (M4) and 0.0% (M8) for Y-STRs. Drop-out and drop-in alleles were the main cause of errors, with laboratories using different criteria regarding inclusion of minor peaks and stutter bands. Commonly used commercial kits yielded different results for a micro-variant detected at locus D12S391. In addition, the analysis of electropherograms revealed that the proportions of the contributors detected in the mixtures varied among the participants. In regards to mtDNA analysis, besides important discrepancies in reporting heteroplasmies, there was no agreement for the results of sample M4. Thus, while some laboratories documented a single control region haplotype, a few reported unexpected profiles (suggesting contamination problems). For M8, most laboratories detected only the haplotype corresponding to the saliva. Although the GHEP-ISFG has already a large experience in IEs, the present multi-centric study revealed challenges that still exist related to DNA mixtures interpretation. Overall, the results emphasize the need for further research and training actions in order to improve the analysis of mixtures among the forensic practitioners., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)
Published: 2016
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Region

Database

Publisher

120 results on '"T. T. Ribeiro"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources