Results 1 to 10 of about 1,925 (143)

Mechanical characterization of the stainless steel welds for the JT-60SA Cryostat Vessel Body Cylindrical Section

open access: yesNuclear Materials and Energy, 2022
JT-60SA is the superconducting tokamak that will be operated at the Naka Fusion Institute of QST (the National Institutes for Quantum and Radiological Science and Technology) in Japan.
Mercedes Medrano   +9 more
doaj   +1 more source

30 Jahre ASDEX Upgrade

open access: yesPhysik in unserer Zeit, Volume 52, Issue 3, Page 116-122, May 2021., 2021
Der Tokamak ASDEX Upgrade am Max‐Planck‐Institut für Plasmaphysik in Garching ist seit dreißig Jahren in Betrieb. In dieser Zeit wurde die Fusionsanlage immer weiter ausgebaut und verbessert. Inzwischen hat man zahlreiche gut diagnostizierte Szenarien für den Plasmabetrieb erarbeitet.
Arne Kallenbach
wiley   +1 more source

ECRF stray radiation studies in preparation of the operations of JT-60SA [PDF]

open access: yesEPJ Web of Conferences, 2023
JT-60SA tokamak is equipped with an ECRF system since the beginning of its operational phase. Starting from two gyrotrons units during the Integrated Commissioning, applicable for core heating, assisted breakdown and assisted Wall Conditioning, the ...
Sozzi Carlo   +7 more
doaj   +1 more source

Characterization of early current quench time during massive impurity injection in JT-60SA

open access: yesNuclear Fusion, 2023
Characteristics of the early current quench (CQ) time in mitigated disruptions are studied for a full-current (5.5 MA) scenario in the JT-60SA superconducting tokamak.
T. Yokoyama   +9 more
doaj   +1 more source

Simultaneous control of safety factor profile and normalized beta for JT-60SA using reinforcement learning

open access: yesNuclear Fusion, 2023
Plasma with an internal transport barrier (ITB) will be developed in JT-60SA as an attractive operation appropriate for a steady-state fusion reactor.
T. Wakatsuki   +4 more
doaj   +1 more source

Adaptive Tikhonov regularization and dynamic control points for accurate shape parameter control of plasmas

open access: yesNuclear Fusion, 2023
Precise control of plasma shape parameters, such as elongation and triangularity is duly needed to achieve high-performance tokamak plasmas, for which we propose adaptive search schemes of (1) optimum regularization parameter for the Tikhonov ...
S. Inoue   +4 more
doaj   +1 more source

Gyrokinetic turbulence modeling of a high performance scenario in JT-60SA

open access: yesNuclear Fusion, 2023
Local gyrokinetic simulations are used to model turbulent transport for the first time in a representative high-performance plasma discharge projected for the new JT-60SA tokamak. The discharge features a double-null separatrix, 41 MW of combined neutral
A. Iantchenko   +3 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

Installation, Commissioning and Tests of Four Fast Switching Units of up to 20 kA for the JT-60SA Nuclear Fusion Experiment

open access: yesEnergies, 2018
The nuclear fusion project JT-60SA is presently under construction in Naka (Japan) as a joint collaboration between Europe and Japan, within the framework of the Broader Approach Agreement.
Alessandro Lampasi   +8 more
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

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