Results 21 to 30 of about 141,584 (298)
Motion and equilibrium of a spheromak in a toroidal flux conserver [PDF]
, 1991 A number of experiments have been performed on spheromaks injected into the empty vacuum vessel of the Caltech ENCORE tokamak (i.e., without tokamak plasma) [Phys. Rev. Lett. 64, 2144 (1990); Phys. Fluids B 2, 1306 (1990)].
Bellan, P. M. +2 more
core +1 more source
In-situ Low Power Tests of the ASDEX Upgrade ECRH Transmission Lines [PDF]
EPJ Web of ConferencesAn Electron Cyclotron Resonance Heating (ECRH) system employing 8 gyrotrons is in routine operation at the ASDEX Upgrade tokamak at IPP Garching. The gyrotrons are of two-frequency type operating at 105 and 140 GHz with a maximum output power of up to 1 ...
Wagner Dietmar +5 more
doaj +1 more source
Parameter study of ICRH wave propagation in IShTAR [PDF]
, 2016 A crude first assessment of how waves behave is commonly made relying on decoupled dispersion equation roots. In the low density, low temperature region behind the last closed flux surface in a tokamak where the density decays exponentially and where the
Crombé, Kristel, Van Eester, D
core +3 more sources
MHD Instabilities in Tokamaks [PDF]
Fusion Science and Technology, 2006 A general introduction to ideal magnetohydrodynamic (MHD) stability of tokamak plasmas is given, using linear perturbations of the ideal MHD equations.
openaire +3 more sources
Tokamak plasma boundary reconstruction using toroidal harmonics and an optimal control method [PDF]
, 2015 This paper proposes a new fast and stable algorithm for the reconstruction of the plasma boundary from discrete magnetic measurements taken at several locations surrounding the vacuum vessel. The resolution of this inverse problem takes two steps. In the
Faugeras, B.
core +4 more sources
On mechanisms of impurity leakage and retention in the tokamak divertor
Plasma Physics and Controlled Fusion, 2019 Impurity seeding into a tokamak divertor for radiative cooling is considered as a tool for achieving detached/semi-detached regimes required to meet the condition of acceptable heat loads on divertor plates.
I. Senichenkov +8 more
semanticscholar +1 more source
Requirements and modelling of fast particle injection in RFX-mod tokamak plasmas [PDF]
, 2017 The planned upgrade of the RFX-mod device is a good opportunity to widen the operational space of the machine, in both RFP and tokamak configurations. Installation of a power neutral beam injector is also envisaged and a NB system compatible with RFX-mod,
Artaud, Jean Francois +5 more
core +1 more source
Shielding materials in the compact spherical tokamak
Philosophical Transactions of the Royal Society A, 2019 Neutron shielding materials are a critical area of development for nuclear fusion technology. In the compact spherical tokamak, shielding efficiency improvements are particularly needed because of severe space constraints.
S. Humphry-Baker, George D. W. Smith
semanticscholar +1 more source
A model of multi-pass absorption of external EC radiation at initial stage of discharge in ITER
EPJ 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
Compact steady-state tokamak performance dependence on magnet and core physics limits
Philosophical 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