Results 61 to 70 of about 601 (182)

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
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Development of electron cyclotron wall conditioning with argon gas in the spherical tokamak QUEST for hydrogen removal from metal walls

Nuclear Fusion
Electron cyclotron wall conditioning with argon gas (Ar-ECWC) has been performed on the normal conducting spherical tokamak QUEST with metal walls for the purpose of applying this technique to future superconducting fusion devices with metal walls as an ...
Masakatsu Fukumoto, Qilin Yue, Pakkapawn Prapan, Kazuaki Hanada, Shinichiro Kojima, Tomohide Nakano, Naoaki Yoshida, Ryuya Ikezoe, Yoshihiko Nagashima, Takeshi Ido, Takumi Onchi, Hiroshi Idei, Takumi Komiyama, Hiroki Iguchi, Taiichi Shikama, Akira Ejiri, Suguru Masuzaki, Mizuki Sakamoto, Yoshio Ueda, Kengoh Kuroda, Kaori Kono, Shun Shimabukuro, Aki Higashijima   +22 more
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Calculation of in-situ steady-state heat flux on EAST lower divertor

Nuclear Materials and Energy
Heat flux is a key issue in tokamak devices. The non-uniform high heat flux on Plasma-Facing Components (PFCs) has led to local severe damage, including cracks and melting, in current tokamaks such as EAST and WEST.
Chunyu He, Dahuan Zhu, Baoguo Wang, Binfu Gao, Gaoting Chen, Lingyi Meng, Rong Yan, Yang Wang, Yongqi Gu, Guoliang Xu, Qingquan Yang, Rui Ding, Junling Chen   +12 more
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STABLE REGION OF TOKAMAK DEVICE FEEDBACK CONTROL (Ⅱ)——EXPBEIMENTAL

Acta Physica Sinica, 1986
A stable region experiment of feedback control in CT-6B Tokamak has been can-ducted. Two feedback systems have been used simultaneously to control the heating field and the vertical magnetic field in the Tokamak. The experimental results were compared with the linear theory described in the part (I) of our paper.
null Shen Zhong-qing, null Zheng Shao-bai, null WANG LONG   +2 more
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Testing of the SOLPS-ITER code at Globus-M2 spherical tokamak with detached divertor

MATEC Web of Conferences, 2018
In according to a present understanding of Scrape-Off Layer (SOL) physics, future thermonuclear devices like ITER, DEMO and beyond, require high radiation regimes in order to reduce heat loads on tokamak divertor. Recent experiments at ASDEX Upgrade, JET
Sorokina Daria, Senichenkov Ilya, Vekshina Elena, Rozhansky Vladimir   +3 more
doaj   +1 more source

Tokamak divertor plasma emulation with machine learning

Nuclear Fusion
Future tokamak devices that aim to create conditions relevant to power plant operations must consider strategies for mitigating damage to plasma facing components in the divertor.
G.K. Holt, A. Keats, S. Pamela, M. Kryjak, A. Agnello, N.C. Amorisco, B.D. Dudson, M. Smyrnakis   +7 more
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STABLE REGION OF TOKAMAK DEVICE FEEDBACK CONTROL (Ⅰ)——THEORETICAL

Acta Physica Sinica, 1986
In this paper, the evolution equations of feedback control of plasma current and horizontal displacement simultineously in a tokamak device are presented. Under the assumption of small disturbance and linear approximation, the stability criterion and the stable region of CT-6B tokamak feedback control is given.
null ZHENG SHAO-BAI, null SHEN ZHONG-QING   +1 more
openaire   +1 more source

Error field detection and correction studies towards ITER operation

Nuclear Fusion
In magnetic fusion devices, error field (EF) sources, spurious magnetic field perturbations, need to be identified and corrected for safe and stable (disruption-free) tokamak operation.
L. Piron, C. Paz-Soldan, L. Pigatto, P. Zanca, O. Sauter, T. Putterich, P. Bettini, M. Bonotto, G. Cunningham, G. De Tommasi, N. Ferron, M. Gambrioli, G. Graham, P. De Vries, Y. Gribov, Q. Hu, K. Kirov, N.C. Logan, M. Lennholm, M. Mattei, M. Maraschek, T. Markovic, G. Manduchi, P. Martin, A. Pironti, A.R. Polevoi, T. Ravensbergen, D. Ryan, B. Sieglin, W. Suttrop, D. Terranova, W. Teschke, D.F. Valcarcel, C. Vincent, JET Contributors, the EUROfusion Tokamak Exploitation Team, the ASDEX Upgrade Team, MAST-U Team   +37 more
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Reducing turbulent transport in tokamaks by combining intrinsic rotation and the low momentum diffusivity regime

Nuclear Fusion
Based on the analysis of a large number of high-fidelity nonlinear gyrokinetic simulations, we propose a novel strategy to improve confinement in spherical tokamak plasmas by combining up-down asymmetric flux surface shaping with the Low Momentum ...
Haomin Sun, Justin Ball, Stephan Brunner, Anthony Field, Bhavin Patel, Daniel Kennedy, Colin Roach, Diego Jose Cruz-Zabala, Fernando Puentes Del Pozo, Eleonora Viezzer, Manuel Garcia Munoz   +10 more
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Tuning of the current drive in tokamaks with phase-shifted beating waves [PDF]

AIP Advances
Recent advancements in tokamak devices have allowed for reaching very high plasma temperatures, giving hope for the production of thermonuclear fusion power.
Krzysztof A. Mizerski
doaj   +1 more source