Results 31 to 40 of about 141,584 (298)
Towards a compact spherical tokamak fusion pilot plant
Philosophical 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
Fusion 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.
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On non existence of tokamak equilibria with purely poloidal flow [PDF]
, 2006 It is proved that irrespective of compressibility tokamak steady states with purely poloidal mass flow can not exist in the framework of either magnetohydrodynamics (MHD) or Hall MHD models.
G. N. Throumoulopoulos +3 more
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On The Confinement of a Tokamak Plasma [PDF]
SIAM 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
EPJ 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
Formation of convective cells in the scrape-off layer of the CASTOR tokamak [PDF]
, 2004 Understanding of the scrape-off layer (SOL) physics in tokamaks requires diagnostics with sufficient temporal and spatial resolution. This contribution describes results of experiments performed in the SOL of the CASTOR tokamak (R=40 cm, a = 6 cm) by ...
Counsell G F Cohen R H Hellander P Ryutov D D the MAST team +20 more
core +3 more sources
Plasma Magnetic Control in Tokamak Devices
, 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
Nuclear Materials and EnergyThe scrape-off layer parallel heat flux decay lengths measured at ST40, a high field, low aspect ratio spherical tokamak, have been observed to bifurcate into two groups.
X. Zhang +16 more
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Kinetic modelling of runaway electron avalanches in tokamak plasmas
, 2015 Runaway electrons (REs) can be generated in tokamak plasmas if the accelerating force from the toroidal electric field exceeds the collisional drag force due to Coulomb collisions with the background plasma.
Decker, J. +5 more
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Review of Scientific Instruments, 2018 Plasma Facing Components (PFC) temperature measurement is mandatory to ensure safe high power and long pulse tokamak operation. IR thermography systems which are widely used in magnetic fusions devices become challenged with the choice of tungsten as a ...
Y. Corre +9 more
semanticscholar +1 more source