Results 21 to 30 of about 85,365 (260)
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
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
Initial analytical theory of plasma disruption and experimental evidence
Scientific 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
Contribution to fusion research from IAEA coordinated research projects and joint experiments [PDF]
, 2015 The paper presents objectives and activities of IAEA Coordinated Research Projects 'Conceptual development of steady-state compact fusion neutron sources' and 'Utilisation of a network of small magnetic confinement fusion devices for mainstream fusion ...
A. Melnikov +8 more
core +2 more sources
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
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
Plasma Equilibrium in Tokamaks [PDF]
Fusion Science and Technology, 2006 This lecture treats the magnetohydrodynamic (MHD) equilibrium of axisymmetric plasmas, as given by the Grad-Shafranov equation.
openaire +5 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 +4 more sources
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
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
doaj +1 more source