Results 41 to 50 of about 2,473,114 (224)

Machine learning prediction of plasma behavior from discharge configurations on WEST

Nuclear Fusion
Accurately predicting plasma behavior based on discharge configurations is essential for the safe and efficient operation of tokamak experiments. While physics-based integrated modeling codes provide valuable insights, their high computational cost ...
Chenguang Wan, Feda Almuhisen, Philippe Moreau, Rémy Nouailletas, Zhisong Qu, Youngwoo Cho, Robin Varennes, Kyungtak Lim, Kunpeng Li, Jia Huang, Weidong Chen, Jiangang Li, Xavier Garbet, WEST Team   +13 more
doaj   +1 more source

First SOLPS‐ITER Simulation Study of Japanese DEMO on Leakage of Seeded Ar Impurity

Contributions to Plasma Physics, EarlyView.
ABSTRACT For JA DEMO, one of the grand challenges is efficiently handling the extreme power loads onto plasma‐facing components, particularly the divertor targets. Impurity seeding is an essential strategy for increasing the radiation losses and thereby reducing the heat load on the targets.
Hang Si, Gakushi Kawamura, Nobuyuki Asakura, Kazuo Hoshino, Haruki Seto, Yoshiteru Sakamoto, Masatoshi Yagi   +6 more
wiley   +1 more source

MHD modelling of density limit disruptions in tokamaks [PDF]

Nuclear Fusion, 1991
The magnetohydrodynamic (MHD) activity during density limit disruptions in tokamaks is modelled numerically by three-dimensional resistive reduced MHD simulations with a simple transport model including radiation losses. The simulations reproduce experimentally observed phenomena such as the destabilization of MHD modes near the plasma edge during the ...
Bondeson, A., Parker, R. D., Hugon, M., Smeulders, P.   +3 more
openaire   +1 more source

The modeling of a tokamak plasma discharge, from first principles to a flight simulator [PDF]

, 2022
A newly developed tool to simulate a tokamak full discharge is presented. The tokamak \u27flight simulator\u27 Fenix couples the tokamak control system with a fast and reduced plasma model, which is realistic enough to take into account several of the ...
Poli, E., Kudlacek, O., Treutterer, W., Fable, E., Schramm, R., Wu, C., Englberger, M., Zohm, H. ; https://orcid.org/, Tardini, G., ASDEX Upgrade Team, Muraca, M., Weiland, M., Angioni, C., Angioni, C. ; https://orcid.org/, Janky, F., Siccinio, M., Zohm, H., Reich, M.   +17 more
core   +1 more source

Towards a Mean‐Field Braginskii Model for Stellarators

Contributions to Plasma Physics, EarlyView.
ABSTRACT Experiments in the stellarator Wendelstein 7‐X indicate that particle drifts have a significant impact on the plasma in the scrape‐off layer. However, drift effects have been absent in the mean‐field transport codes such as EMC3‐Eirene. For this reason, we present the first steps towards a mean‐field model that incorporates drifts. The code is
T. Tork, F. Reimold, D. Bold, B. Shanahan, B. Dudson, A. Stegmeir, P. Manz, The W7‐X Team   +7 more
wiley   +1 more source

Progress in pedestal and edge physics: Chapter 3 of the special issue: on the path to tokamak burning plasma operation

Nuclear Fusion
This paper describes the extensive progress that has been made in the understanding of tokamak pedestal physics since the 2007 publication of ‘Progress in the ITER Physics Basis’ (Ikeda 2007 Nucl. Fusion 47 E01–S500).
M.E. Fenstermacher (Chair, Pedestal and Edge Physics), L.R. Baylor, E. de la Luna, M.G. Dunne, G.T.A. Huijsmans, A. Kirk, F.M. Laggner, T.H. Osborne, C. Paz-Soldan, S. Saarelma, P.B. Snyder, E. Viezzer, M. Becoulet, K.H. Burrell, A. Cathey, X. Chen, M. Hoelzl, J.W. Hughes, R. Maingi, A.O. Nelson, H. Urano, E. Wolfrum, X.Q. Xu, A. Diallo, L. Frassinetti, S. Futatani, L. Gil, R. Groebner, T. Happel, S.H. Kim, J. King, B. Labit, P.T. Lang, Y.Q. Liu, Z.X. Liu, R. Lunsford, G.Y. Park, U. Sheikh, W. Suttrop, B. Vanovac, R.S. Wilcox, A. Wingen, T. Zhang   +42 more
doaj   +1 more source

Assessment of X-point target divertor configuration for power handling and detachment front control

Nuclear Materials and Energy, 2017
A study of long-legged tokamak divertor configurations is performed with the edge transport code UEDGE (Rognlien et al., J. Nucl. Mater. 196, 347, 1992). The model parameters are based on the ADX tokamak concept design (LaBombard et al., Nucl. Fusion 55,
M.V. Umansky, M.E. Rensink, T.D. Rognlien, B. LaBombard, D. Brunner, J.L. Terry, D.G. Whyte   +6 more
doaj   +1 more source

Indoor UAV for Nuclear Investigation: Experimental Qualification and Field Feedback

Journal of Field Robotics, EarlyView.
ABSTRACT Indoor Unmanned Aerial Vehicles (UAVs) have recently gained interest for inspection and investigation tasks in hazardous environments. In the nuclear field, indoor UAVs offer promising capabilities to reduce workers' exposure to ionizing radiation while accessing confined or elevated areas.
Jérémy Seyssaud, Marie Cuozzo, Julien Favrichon, Benjamin Catania, Eric Cantrel, Tadec Marraine, Jérôme Boch   +6 more
wiley   +1 more source

Numerical modeling of magnetic field dynamics in tokamak taking into account the induced eddy currents [PDF]

, 2016
Modeling of magnetic configurations in the vacuum chamber of the tokamak, including a null-field, taking into account eddy currents is actual for planning the initial phase of plasma production at tokamak – initiation of the plasma discharge.
Sadykov, A. D., Chektybaev, B. Zh., Shapovalov, G. V.   +2 more
core   +1 more source

Comprehensive new insights on the potential use of SiC as plasma-facing materials in future fusion reactors

Nuclear Fusion
The performance of silicon carbide as an alternative plasma facing material (PFM) was studied at various irradiation conditions relevant to ion energies and fluxes of a fusion reactor.
T. Sizyuk, J.N. Brooks, T. Abrams, A. Hassanein   +3 more
doaj   +1 more source