Results 21 to 30 of about 91,764 (228)

Initial analytical theory of plasma disruption and experimental evidence

open access: yesScientific Reports, 2023
It is a great physical challenge to achieve controlled nuclear fusion in magnetic confinement tokamak and solve energy shortage problem for decades. In tokamak plasma, large-scale plasma instability called disruption will halt power production of reactor
Huibin Qiu   +13 more
doaj   +1 more source

Compact steady-state tokamak performance dependence on magnet and core physics limits

open access: yesPhilosophical Transactions of the Royal Society A, 2019
Compact tokamak fusion reactors using advanced high-temperature superconducting magnets for the toroidal field coils have received considerable recent attention due to the promise of more compact devices and more economical fusion energy development ...
J. Menard
semanticscholar   +1 more source

Towards a compact spherical tokamak fusion pilot plant

open access: yesPhilosophical Transactions of the Royal Society A, 2019
The question of size of a tokamak fusion reactor is central to current fusion research especially with the large device, ITER, under construction and even larger DEMO reactors under initial engineering design.
A. Costley
semanticscholar   +1 more source

A model of multi-pass absorption of external EC radiation at initial stage of discharge in ITER

open access: yesEPJ Web of Conferences, 2015
A model is developed for multi-pass absorption of external electron cyclotron radiation (ECR) in tokamaks, which is used at initial stage of discharge to overcome the impurity radiation barrier (burn-through). Model is based on a semi-analytical solution
Minashin P.V.   +3 more
doaj   +1 more source

Development of a plasma shape and position display system for damavand tokamak control room [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2023
Determining the magnetic field profile is very important for studying flux surfaces, elongation, plasma boundaries, and real-time control in tokamaks. In this research, a system for calculating and displaying the shape, position, and boundary of plasma ...
D. Iraji   +3 more
doaj   +1 more source

Modelling the capacitance of the elongated plasma in tokamak

open access: yesScientific Reports, 2023
The capacitance model suitable for the non-circular cross-section plasma is studied based on the capacitance model of the circular cross-section plasma.
Pengcheng Miao   +5 more
doaj   +1 more source

Overview of Tokamak Results

open access: yesFusion Technology, 2000
An overview is given of recent results obtained in tokamak devices. We introduce basic confinement scenarios as L-mode, H-mode and plasmas with an internal transport barrier and discuss methods for profile control. Important findings in DT- experiments at JET as α- particle heating are described.
Unterberg, B., Samm, U.
openaire   +3 more sources

Plasma Magnetic Control in Tokamak Devices

open access: yes, 2019
In tokamak experimental reactors, the magnetic control system is one of the main plasma control systems that is required, together with the density control, since the very beginning, even before first operations.
G. Tommasi
semanticscholar   +1 more source

On The Confinement of a Tokamak Plasma [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2010
The goal of this paper is to understand from a mathematical point of view the magnetic confinement of plasmas for fusion. Following Fr nod and Sonnendr cker \cite{FS2}, we first use two-scale convergence tools to derive a gyrokinetic system for a plasma submitted to a large magnetic field with a slowly spatially varying intensity.
openaire   +2 more sources

Spectroscopic diagnostics of superthermal electrons with high-number harmonic EC radiation in tokamak reactor plasmas

open access: yesEPJ Web of Conferences, 2015
A method of spectroscopic diagnostics of the average perpendicular-to-magnetic-field momentum of the superthermal component of the electron velocity distribution (EVD), based on the high-number-harmonic electron cyclotron (EC) radiation, is suggested for
Minashin P.V., Kukushkin A.B.
doaj   +1 more source

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