Results 11 to 20 of about 75,934 (156)

Structural optimisation of the DEMO alternative divertor configurations based on FE and RBF mesh morphing [PDF]

open access: yesHeliyon, 2023
The DEMO tokamak exhibits extraordinary complexity due to the constraints and requirements pertaining to different fields of physics and engineering.
Andrea Chiappa   +5 more
doaj   +2 more sources

Recent progress of the JT-60SA project

open access: yesNuclear Fusion, 2017
The JT-60SA project has been implemented for the purpose of an early realization of fusion energy. With a powerful and versatile NBI and ECRF system, a flexible plasma-shaping capability, and various kinds of in-vessel coils to suppress MHD instabilities, JT-60SA plays an essential role in addressing the key physics and engineering issues of ITER and ...
Shirai, H.   +100 more
openaire   +5 more sources

Commissioning of the JT-60SA helium refrigerator

open access: yesJournal of Physics: Conference Series, 2017
The JT-60SA project will use superconducting magnets to confine the plasma and achieve a plasma current with a typical flat top duration of 100 second in purely inductive mode. The helium refrigerator has an equivalent cooling power of 9 kW at 4.5 K providing 3.7 K, 4.5 K, 50 K and 80 K for the diverter cryopump, the superconducting magnets, the HTS ...
Kamiya, Koji   +18 more
openaire   +4 more sources

Advances in the physics studies for the JT-60SA tokamak exploitation and research plan [PDF]

open access: yes, 2019
| openaire: EC/H2020/633053/EU//EUROfusionJT-60SA, the largest tokamak that will operate before ITER, has been designed and built jointly by Japan and Europe, and is due to start operation in 2020.
Corona, D.   +498 more
core   +8 more sources

Modelling of ohmic startup and runaway electron formation in support of JT-60SA initial operation

open access: yesNuclear Fusion, 2022
The plasma startup with ITER-relevant sub-mPa neutral pressures in the JT-60SA superconducting tokamak is studied using a zero-dimensional (0D) power balance model for the plasma burn-through phase.
A. Matsuyama   +5 more
doaj   +1 more source

Assessment of Scrape-Off Layer and divertor plasma conditions in JT-60SA with tungsten wall and nitrogen injection

open access: yesNuclear Materials and Energy, 2021
The possibility to safely operate tokamaks strongly depends on the capability to protect the divertor targets from excessive power load and erosion. Here, we will present a study of the JT-60SA Scenario 3 with a W wall to identify possible criticality in
G. Rubino, G. Calabrò, M. Wischmeier
doaj   +1 more source

Transient analysis of high-Z impurity screening by additional injection of low-Z impurity using integrated divertor code SONIC

open access: yesNuclear Fusion, 2023
The dynamics of the screening effect of Ar impurity by the injection of additional Ne has been studied through time-dependent analysis with the integrated divertor code SONIC. In the preceding study (Yamoto et al 2020 Plasma Phys. Control.
Shohei Yamoto   +4 more
doaj   +1 more source

Predictive modeling of Alfvén eigenmode stability in inductive scenarios in JT-60SA

open access: yesFrontiers in Physics, 2023
The JT-60SA device offers unique conditions before ITER for the study of the interaction of energetic particles with plasma waves. With similar dimensions to JET, e.g., a major radius but with a slightly more elongated plasma volume, JT-60SA is used as a
R. Coelho   +11 more
doaj   +1 more source

Hierarchical Cascade Control Systems for Time-Dependent Dynamical Plants as Applied to Magnetic Plasma Control in D-Shaped Tokamaks

open access: yesEngineering Proceedings, 2023
The systems of poloidal field coils in D-shaped Tokamaks such as ITER, EAST, JET, ASDEX Upgrade, TCV, GLOBUS-M2, DIII-D, SPARC, IGNITOR, JT-60SA, DEMO-9.1, DEMO-1.6, T-15MD, and TRT are analyzed for their efficiency in the application of plasma position,
Yuri V. Mitrishkin
doaj   +1 more source

ECH and ECCD effects on NTMs stabilization by ECRF in JT-60SA tokamak

open access: yesEPJ Web of Conferences, 2012
The current drive efficiency of the dual frequency (110 GHz and 138 GHz) ECRF system of JT-60SA is studied. The requirements for neoclassical tearing modes (NTMs) instabilities control by ECRF during the initial research phase when only part of the full ...
Ide S.   +10 more
doaj   +1 more source

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