12 results on '"Pedersen T"'
Search Results
2. Positron orbit effects during injection and confinement in a magnetic dipole trap
- Author
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Nißl, S., primary, Stenson, E. V., additional, Hergenhahn, U., additional, Horn-Stanja, J., additional, Sunn Pedersen, T., additional, Saitoh, H., additional, Hugenschmidt, C., additional, Singer, M., additional, Stoneking, M. R., additional, and Danielson, J. R., additional
- Published
- 2020
- Full Text
- View/download PDF
3. Performance of Wendelstein 7-X stellarator plasmas during the first divertor operation phase
- Author
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Wolf, R. C., Alonso, A., Akaslompolo, S., Baldzuhn, J., Beurskens, M., Beidler, C. D., Biedermann, C., Bosch, H. -S., Bozhenkov, S., Brakel, R., Braune, H., Brezinsek, S., Brunner, K. -J., Damm, H., Dinklage, A., Drewelow, P., Effenberg, F., Feng, Y., Ford, O., Fuchert, G., Gao, Y., Geiger, J., Grulke, O., Harder, N., Hartmann, D., Helander, P., Heinemann, B., Hirsch, M., Hofel, U., Hopf, C., Ida, K., Isobe, M., Jakubowski, M. W., Kazakov, Y. O., Killer, C., Klinger, T., Knauer, J., Konig, R., Krychowiak, M., Langenberg, A., Laqua, H. P., Lazerson, S., Mcneely, P., Marsen, S., Marushchenko, N., Nocentini, R., Ogawa, K., Orozco, G., Osakabe, M., Otte, M., Pablant, N., Pasch, E., Pavone, A., Porkolab, M., Puig Sitjes, A., Rahbarnia, K., Riedl, R., Rust, N., Scott, E., Schilling, J., Schroeder, R., Stange, T., Von Stechow, A., Strumberger, E., Sunn Pedersen, T., Svensson, J., Thomson, H., Turkin, Y., Vano, L., Wauters, T., Wurden, G., Yoshinuma, M., Zanini, M., Zhang, D., Andreeva, T., Brandt, C., Burhenn, R., Buttenschon, B., Geiger, B., Tamura, N., Thomsen, H., Wegner, T., Abramovic, I., Alcuson, J., Aleynikov, P., Aleynikova, K., Ali, A., Anda, G., Ascasibar, E., Bahner, J. P., Baek, S. G., Balden, M., Banduch, M., Barbui, T., Behr, W., Beidler, C., Benndorf, A., Biel, W., Blackwell, B., Blanco, E., Blatzheim, M., Ballinger, S., Bluhm, T., Bockenhoff, D., Boswirth, B., Bottger, L. -G., Borchardt, M., Borsuk, V., Boscary, J., Brand, H., Brauer, T., Bussiahn, R., Bykov, V., Cai, J., Calvo, I., Cannas, B., Cappa, A., Carls, A., Carralero, D., Carraro, L., Carvalho, B., Castejon, F., Charl, A., Chaudhary, N., Chauvin, D., Chernyshev, F., Cianciosa, M., Citarella, R., Claps, G., Coenen, J., Cole, M., Cole, M. J., Cordella, F., Cseh, G., Czarnecka, A., Czerski, K., Czerwinski, M., Czymek, G., Da Molin, A., Da Silva, A., De La Pena, A., Degenkolbe, S., Dhard, C. P., Dibon, M., Dittmar, T., Drevlak, M., Drews, P., Durodie, F., Edlund, E., Van Eeten, P., Ehrke, G., Elgeti, S., Endler, M., Ennis, D., Esteban, H., Estrada, T., Fellinger, J., Flom, E., Fernandes, H., Fietz, W. H., Figacz, W., Fontdecaba, J., Fornal, T., Frerichs, H., Freund, A., Funaba, T., Galkowski, A., Gantenbein, G., Garcia Regana, J., Gates, D., Giannella, V., Gogoleva, A., Goncalves, B., Goriaev, A., Gradic, D., Grahl, M., Green, J., Greuner, H., Grosman, A., Grote, H., Gruca, M., Guerard, C., Hacker, P., Han, X., Harris, J. H., Hathiramani, D., Hein, B., Henneberg, S., Henkel, M., Hernandez Sanchez, J., Hidalgo, C., Hollfeld, K. P., Holting, A., Hoschen, D., Houry, M., Howard, J., Huang, X., Huang, Z., Hubeny, M., Huber, M., Hunger, H., Ilkei, T., Illy, S., Israeli, B., Jablonski, S., Jakubowski, M., Jelonnek, J., Jenzsch, H., Jesche, T., Jia, M., Junghanns, P., Kacmarczyk, J., Kallmeyer, J. -P., Kamionka, U., Kasahara, H., Kasparek, W., Kenmochi, N., Kirschner, A., Kleiber, R., Knaup, M., Knieps, A., Kobarg, T., Kocsis, G., Kochl, F., Kolesnichenko, Y., Konies, A., Kornejew, P., Koschinsky, J. -P., Koster, F., Kramer, M., Krampitz, R., Kramer-Flecken, A., Krawczyk, N., Kremeyer, T., Krom, J., Ksiazek, I., Kubkowska, M., Kuhner, G., Kurki-Suonio, T., Kurz, P. A., Kwak, S., Landreman, M., Lang, P., Lang, R., Langish, S., Laqua, H., Laube, R., Lechte, C., Lennartz, M., Leonhardt, W., Li, C., Li, Y., Liang, Y., Linsmeier, C., Liu, S., Lobsien, J. -F., Loesser, D., Loizu Cisquella, J., Lore, J., Lorenz, A., Losert, M., Lucke, A., Lumsdaine, A., Lutsenko, V., Maassberg, H., Marchuk, O., Matthew, J. H., Marushchenko, M., Masuzaki, S., Maurer, D., Mayer, M., Mccarthy, K., Meier, A., Mellein, D., Mendelevitch, B., Mertens, P., Mikkelsen, D., Mishchenko, A., Missal, B., Mittelstaedt, J., Mizuuchi, T., Mollen, A., Moncada, V., Monnich, T., Morisaki, T., Moseev, D., Murakami, S., Nafradi, G., Nagel, M., Naujoks, D., Neilson, H., Neu, R., Neubauer, O., Neuner, U., Ngo, T., Nicolai, D., Nielsen, S. K., Niemann, H., Nishizawa, T., Nuhrenberg, C., Nuhrenberg, J., Obermayer, S., Offermanns, G., Olmanns, J., Ongena, J., Oosterbeek, J. W., Pacios Rodriguez, L., Panadero, N., Panadero Alvarez, N., Papenfuss, D., Paqay, S., Pawelec, E., Pedersen, T. S., Pelka, G., Perseo, V., Peterson, B., Pilopp, D., Pingel, S., Pisano, F., Plaum, B., Plunk, G., Poloskei, P., Proll, J., Puiatti, M. -E., Purps, F., Rack, M., Recsei, S., Reiman, A., Reimold, F., Reiter, D., Remppel, F., Renard, S., Riemann, J., Risse, K., Rohde, V., Rohlinger, H., Rome, M., Rondeshagen, D., Rong, P., Roth, B., Rudischhauser, L., Rummel, K., Rummel, T., Runov, A., Ryc, L., Ryosuke, S., Sakamoto, R., Salewski, M., Samartsev, A., Sanchez, E., Sano, F., Satake, S., Schacht, J., Satheeswaran, G., Schauer, F., Scherer, T., Schlaich, A., Schlisio, G., Schluck, F., Schluter, K. -H., Schmitt, J., Schmitz, H., Schmitz, O., Schmuck, S., Schneider, M., Schneider, W., Scholz, P., Schrittwieser, R., Schroder, M., Schroder, T., Schumacher, H., Schweer, B., Sereda, S., Shanahan, B., Sibilia, M., Sinha, P., Siplia, S., Slaby, C., Sleczka, M., Smith, H., Spiess, W., Spong, D. A., Spring, A., Stadler, R., Stejner, M., Stephey, L., Stridde, U., Suzuki, C., Szabo, V., Szabolics, T., Szepesi, T., Szokefalvi-Nagy, Z., Tancetti, A., Terry, J., Thomas, J., Thumm, M., Travere, J. M., Traverso, P., Tretter, J., Trimino Mora, H., Tsuchiya, H., Tsujimura, T., Tulipan, S., Unterberg, B., Vakulchyk, I., Valet, S., Van Milligen, B., Van Vuuren, A. J., Vela, L., Velasco, J. -L., Vergote, M., Vervier, M., Vianello, N., Viebke, H., Vilbrandt, R., Vorkoper, A., Wadle, S., Wagner, F., Wang, E., Wang, N., Wang, Z., Warmer, F., Wegener, L., Weggen, J., Wei, Y., Weir, G., Wendorf, J., Wenzel, U., Werner, A., White, A., Wiegel, B., Wilde, F., Windisch, T., Winkler, M., Winter, A., Winters, V., Wolf, S., Wright, A., Xanthopoulos, P., Yamada, H., Yamada, I., Yasuhara, R., Yokoyama, M., Zarnstorff, M., Zeitler, A., Zhang, H., Zhu, J., Zilker, M., Zocco, A., Zoletnik, S., Zuin, M., Science and Technology of Nuclear Fusion, Turbulence in Fusion Plasmas, and W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society
- Subjects
Physics ,Technology ,Plasma parameters ,Divertor ,Nuclear engineering ,Plasma ,Condensed Matter Physics ,01 natural sciences ,7. Clean energy ,Electron cyclotron resonance ,010305 fluids & plasmas ,law.invention ,Magnetic field ,law ,0103 physical sciences ,Limiter ,Wendelstein 7-X ,010306 general physics ,ddc:600 ,Stellarator - Abstract
Wendelstein 7-X is the first comprehensively optimized stellarator aiming at good confinement with plasma parameters relevant to a future stellarator power plant. Plasma operation started in 2015 using a limiter configuration. After installing an uncooled magnetic island divertor, extending the energy limit from 4 to 80 MJ, operation continued in 2017. For this phase, the electron cyclotron resonance heating (ECRH) capability was extended to 7 MW, and hydrogen pellet injection was implemented. The enhancements resulted in the highest triple product (6.5 × 1019 keV m-3 s) achieved in a stellarator until now. Plasma conditions [Te(0) ≈ Ti(0) ≈ 3.8 keV, τE > 200 ms] already were in the stellarator reactor-relevant ion-root plasma transport regime. Stable operation above the 2nd harmonic ECRH X-mode cutoff was demonstrated, which is instrumental for achieving high plasma densities in Wendelstein 7-X. Further important developments include the confirmation of low intrinsic error fields, the observation of current-drive induced instabilities, and first fast ion heating and confinement experiments. The efficacy of the magnetic island divertor was instrumental in achieving high performance in Wendelstein 7-X. Symmetrization of the heat loads between the ten divertor modules could be achieved by external resonant magnetic fields. Full divertor power detachment facilitated the extension of high power plasmas significantly beyond the energy limit of 80 MJ.
- Published
- 2019
- Full Text
- View/download PDF
4. Pure electron plasmas confined for 90 ms in a stellarator without electron sources or internal objects
- Author
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Brenner, P. W., primary and Sunn Pedersen, T., additional
- Published
- 2012
- Full Text
- View/download PDF
5. Dynamical plasma response of resistive wall modes to changing external magnetic perturbations
- Author
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Shilov, M., primary, Cates, C., additional, James, R., additional, Klein, A., additional, Katsuro-Hopkins, O., additional, Liu, Y., additional, Mauel, M. E., additional, Maurer, D. A., additional, Navratil, G. A., additional, Pedersen, T. S., additional, Stillits, N., additional, Fitzpatrick, R., additional, and Paul, S. F., additional
- Published
- 2004
- Full Text
- View/download PDF
6. Measurements of large poloidal variations of impurity density in the Alcator C-Mod H-mode barrier region
- Author
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Pedersen, T. Sunn, primary, Granetz, R. S., additional, Marmar, E. S., additional, Mossessian, D., additional, Hughes, J. W., additional, Hutchinson, I. H., additional, Terry, J., additional, and Rice, J. E., additional
- Published
- 2002
- Full Text
- View/download PDF
7. Pedestal profiles and fluctuations in C-Mod enhanced D-alpha H-modes
- Author
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Hubbard, A. E., primary, Boivin, R. L., additional, Granetz, R. S., additional, Greenwald, M., additional, Hughes, J. W., additional, Hutchinson, I. H., additional, Irby, J., additional, LaBombard, B., additional, Lin, Y., additional, Marmar, E. S., additional, Mazurenko, A., additional, Mossessian, D., additional, Nelson-Melby, E., additional, Porkolab, M., additional, Snipes, J. A., additional, Terry, J., additional, Wolfe, S., additional, Wukitch, S., additional, Carreras, B. A., additional, Klein, V., additional, and Pedersen, T. Sunn, additional
- Published
- 2001
- Full Text
- View/download PDF
8. Impurity toroidal rotation and transport in Alcator C-Mod ohmic high confinement mode plasmas
- Author
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Rice, J. E., primary, Goetz, J. A., additional, Granetz, R. S., additional, Greenwald, M. J., additional, Hubbard, A. E., additional, Hutchinson, I. H., additional, Marmar, E. S., additional, Mossessian, D., additional, Pedersen, T. Sunn, additional, Snipes, J. A., additional, Terry, J. L., additional, and Wolfe, S. M., additional
- Published
- 2000
- Full Text
- View/download PDF
9. Characterization of enhanced Dα high-confinement modes in Alcator C-Mod
- Author
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Greenwald, M., primary, Boivin, R., additional, Bonoli, P., additional, Budny, R., additional, Fiore, C., additional, Goetz, J., additional, Granetz, R., additional, Hubbard, A., additional, Hutchinson, I., additional, Irby, J., additional, LaBombard, B., additional, Lin, Y., additional, Lipschultz, B., additional, Marmar, E., additional, Mazurenko, A., additional, Mossessian, D., additional, Sunn Pedersen, T., additional, Pitcher, C. S., additional, Porkolab, M., additional, Rice, J., additional, Rowan, W., additional, Snipes, J., additional, Schilling, G., additional, Takase, Y., additional, Terry, J., additional, Wolfe, S., additional, Weaver, J., additional, Welch, B., additional, and Wukitch, S., additional
- Published
- 1999
- Full Text
- View/download PDF
10. Measurements of the high confinement mode pedestal region on Alcator C-Mod
- Author
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Hubbard, A. E., primary, Boivin, R. L., additional, Granetz, R. S., additional, Greenwald, M., additional, Hutchinson, I. H., additional, Irby, J. H., additional, In, Y., additional, Kesner, J., additional, LaBombard, B., additional, Lin, Y., additional, Rice, J. E., additional, Sunn Pedersen, T., additional, Snipes, J. A., additional, Stek, P. C., additional, Takase, Y., additional, Wolfe, S. M., additional, and Wukitch, S., additional
- Published
- 1998
- Full Text
- View/download PDF
11. Experimental demonstration of a compact stellarator magnetic trap using four circular coils.
- Author
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Pedersen, T. Sunn, Kremer, J. P., Lefrancois, R. G., Marksteiner, Q., Sarasola, X., and Ahmad, N.
- Subjects
- *
STELLARATORS , *TRAPPED-particle instabilities , *MAGNETIC traps , *REVERSED field pinches , *MAGNETOHYDRODYNAMICS , *PHYSICS experiments - Abstract
An experimental demonstration of a compact stellarator magnetic trap created from four circular coils is presented. The coil manufacturing and assembly tolerances were on the order of 0.5–1%, far less stringent than most other stellarators. The simplicity, loose mechanical tolerances, and low cost of the trap design makes it feasible for stellarators to be used for a variety of novel physics experiments, in addition to their present use for magnetic confinement fusion. The experiment, the Columbia Non-neutral Torus, has several other desirable features such as no significant internal island chains and the lowest aspect ratio, A≤1.9, of any stellarator built to date. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
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12. Key results from the first plasma operation phase and outlook for future performance in Wendelstein 7-X.
- Author
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Sunn Pedersen T, Dinklage A, Turkin Y, Wolf R, Bozhenkov S, Geiger J, Fuchert G, Bosch HS, Rahbarnia K, Thomsen H, Neuner U, Klinger T, Langenberg A, Trimiño Mora H, Kornejew P, Knauer J, Hirsch M, and Pablant N
- Abstract
The first physics operation phase on the stellarator experiment Wendelstein 7-X was successfully completed in March 2016 after about 10 weeks of operation. Experiments in this phase were conducted with five graphite limiters as the primary plasma-facing components. Overall, the results were beyond the expectations published shortly before the start of operation [Sunn Pedersen et al. , Nucl. Fusion 55 , 126001 (2015)] both with respect to parameters reached and with respect to physics themes addressed. We report here on some of the most important plasma experiments that were conducted. The importance of electric fields on global confinement will be discussed, and the obtained results will be compared and contrasted with results from other devices, quantified in terms of the fusion triple product. Expected values for the triple product in future operation phases will also be described and put into a broader fusion perspective.
- Published
- 2017
- Full Text
- View/download PDF
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