Results 21 to 30 of about 112,088 (330)

Transport and divertor properties of the Dynamic Ergodic Divertor [PDF]

Plasma Physics and Controlled Fusion, 2005
The concept of the dynamic ergodic divertor (DED) is based on plasma edge ergodization by a resonant perturbation. Such a divertor concept is closely related to helical or island divertors in stellerators. The base mode of the DED perturbation field can be m/n = 12/4, 6/2 or 3/1.
Lehnen, M., Abdullaev, S. S., Jachmich, S., Jakubowski, M. W., Jaspers, R., Koslowski, H. R., Krämer-Flecken, A., Kikuchi, Y., Liang, Y., Loozen, X., Pospieszczyk, A., van Rumpuy, T., Biel, W., Reiter, D., Samm, U., Schmitz, O., Sergienko, G., Tokar, M., Unterberg, B., Wolf, R., Zimmermann, O., de Bock, M. F. M., Brezinsek, S., Busch, C., Classen, I., Finken, K. H., Harting, D., von Hellermann, M.   +27 more
  +5 more sources

Evaluation of NVIDIA Xavier NX Platform for Real-Time Image Processing for Plasma Diagnostics

Energies, 2022
Machine protection is a core task of real-time image diagnostics aiming for steady-state operation in nuclear fusion devices. The paper evaluates the applicability of the newest low-power NVIDIA Jetson Xavier NX platform for image plasma diagnostics ...
Bartłomiej Jabłoński, Dariusz Makowski, Piotr Perek, Patryk Nowak vel Nowakowski, Aleix Puig Sitjes, Marcin Jakubowski, Yu Gao, Axel Winter, The W-X Team   +8 more
doaj   +1 more source

Radiation characteristics of detached divertor plasmas in W7-X

Nuclear Materials and Energy, 2022
Detached divertor plasmas has been achieved by density ramp in W7-X. During the transition into detachment, the main divertor radiation region moves from the region close to the divertor targets to the region around LCFS.
E. Wang, R. König, M. Krychowiak, S. Brezinsek, P. Drews, D. Gradic, M. Jakubowski, P. Kornejew, T. Kremeyer, C. Killer, Y. Liang, O. Neubauer, A. Pandey, L. Rudischhauser, S. Sereda, G. Schlisio, S. Xu   +16 more
doaj   +1 more source

Divertor heat flux challenge and mitigation in SPARC

Journal of Plasma Physics, 2020
Owing to its high magnetic field, high power, and compact size, the SPARC experiment will operate with divertor conditions at or above those expected in reactor-class tokamaks.
Adam Kuang, S. Ballinger, Dan Brunner, J. Canik, A. Creely, T. Gray, M. Greenwald, J. Hughes, J. Irby, B. LaBombard, B. Lipschultz, J. Lore, M. Reinke, J. Terry, M. Umansky, D. Whyte, S. Wukitch   +16 more
semanticscholar   +1 more source

3D simulations of gas puff effects on edge plasma and ICRF coupling in JET [PDF]

, 2017
Recent JET (ITER-Like Wall) experiments have shown that the fueling gas puffed from different locations of the vessel can result in different scrape-off layer (SOL) density profiles and therefore different radio frequency (RF) coupling.
Bilato, R., Bobkov, V., Coster, D., Feng, Y., Goniche, M., Guillemaut, C., Harting, D., Jacquet, P., Jet Contributors, The, Lerche, E., Lunt, T., Noterdaeme, J.-M., Szepesi, G., van Eester, D., Zhang, Wei   +14 more
core   +4 more sources

Recent progress of plasma exhaust concepts and divertor designs for tokamak DEMO reactors

Nuclear Materials and Energy, 2023
The power exhaust concept and an appropriate divertor design are common critical issues for tokamak DEMO design activities which have been carried out in Europe, Japan, China, Korea and the USA.
N. Asakura, K. Hoshino, S. Kakudate, F. Subba, J.-H. You, S. Wiesen, T.D. Rognlien, R. Ding, S. Kwon   +8 more
doaj   +1 more source

Assessment of alternative divertor configurations as an exhaust solution for DEMO

Nuclear Fusion, 2020
Plasma exhaust has been identified as a major challenge towards the realisation of magnetic confinement fusion. To mitigate the risk that the single null divertor (SND) with a high radiation fraction in the scrape-of-layer (SOL) adopted for ITER will not
H. Reimerdes, R. Ambrosino, P. Innocente, A. Castaldo, P. Chmielewski, G. Gironimo, S. Merriman, V. Pericoli-Ridolfini, L. Aho-Mantilla, R. Albanese, H. Bufferand, G. Calabrò, G. Ciraolo, D. Coster, N. Fedorczak, S. Ha, R. Kembleton, K. Lackner, V. Loschiavo, T. Lunt, D. Marzullo, R. Maurizio, F. Militello, G. Ramogida, F. Subba, S. Varoutis, R. Zagórski, H. Zohm   +27 more
semanticscholar   +1 more source

Advanced Divertor Concept – RF Divertor

Fusion Technology, 1995
The application of radio-frequency (RF) forces to divertor plasma is proposed for the improvement of its relevance to reactors. RF fields are applied at the entrance of closed divertor rooms. Ponderomotive forces sustain high density scrape-off plasma which screens the penetration of neutral atoms into core plasma regions, and create positive ...
Tsuguhiro Watanabe, Tetsuo Watari, Nobuyoshi Ohyabu   +2 more
openaire   +1 more source

Divertor Heat Load in ASDEX Upgrade L-Mode in Presence of External Magnetic Perturbation [PDF]

, 2017
Power exhaust is one of the major challenges for a future fusion device. Applying a non-axisymmetric external magnetic perturbation is one technique that is studied in order to mitigate or suppress large edge localized modes which accompany the high ...
Eich, Thomas, Faitsch, Michael, Herrmann, Albrecht, Sieglin, Bernhard, Suttrop, Wolfgang, Team, the ASDEX Upgrade   +5 more
core   +3 more sources

Modeling of argon seeding in ASDEX Upgrade H-mode plasma with SOLPS5.0

Nuclear Materials and Energy, 2017
SOLPS modeling of Ar seeding in ASDEX Upgrade H-mode plasma shows that the divertor compression of Ar increases with the seeding rate when the inner divertor is detached and the outer divertor is attached.
L.Y. Xiang, M. Wischmeier, D. Coster, M. Bernert, H.Y. Guo, G.N. Luo, ASDEX Upgrade team   +6 more
doaj   +1 more source