Results 81 to 90 of about 12,708 (208)

Toward plasma drifts in EMC3: Implementation of gradient, divergence, and particle tracing schemes

Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.
Abstract This paper presents a first implementation of gradient, divergence, and particle tracing schemes for the EMC3 code, a stochastic 3D plasma fluid code widely employed for edge plasma and impurity transport modeling in tokamaks and stellarators.
Ruben De Wolf, Felix Reimold, Yuhe Feng, Matthieu Jacobs, Wouter Dekeyser, Giovanni Samaey, Martine Baelmans   +6 more
wiley   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

Microturbulence studies in RFX-mod

, 2010
Present-days Reversed Field Pinches (RFPs) are characterized by quasi-laminar magnetic configurations in their core, whose boundaries feature sharp internal transport barriers, in analogy with tokamaks and stellarators.
Bonfiglio D, Cappello S, Escande D F, F Sattin, Gobbin M, Guo S C, Horton W, I Predebon, M Veranda, Martin P, Menmuir S, Paccagnella R, S C Guo, S F Liu, Sattin F, Vianello N, X Garbet, Zuin M   +17 more
core   +1 more source

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
openaire   +1 more source

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
doaj   +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
doaj   +1 more source

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

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
doaj   +1 more source