Results 31 to 40 of about 116,100 (253)
Efficiency and scaling of current drive and refuelling by spheromak injection into a tokamak [PDF]
, 1992 The first measurements of current drive (refluxing) and refuelling by spheromak injection into a tokamak are discussed in detail. The current drive mechanism is attributed to the process of helicity injection, and refuelling is attributed to the rapid ...
Bellan, P. M., Brown, M. R.
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
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
Characterization of a spheromak plasma gun: The effect of refractory electrode coatings [PDF]
, 1991 In order to investigate the proposition that high-Z impurities are responsible for the anomalously short lifetime of the Caltech spheromak, the center electrode of the spheromak plasma gun has been coated with a variety of metals (bare steel, copper ...
Bailey, A. D., III +2 more
core +1 more source
Transport Simulasion in a Burning Tokamak Plasma [PDF]
, 1992 A one-dimensional tokamak transport code (TASK/TR) has been developed to analyze the evolution of a burning plasma accompanied with fusion reaction. This code deals with the electrons, deuterons, tritons, thermalized α particles, fast α particles and ...
Fukuyama, Atsushi +2 more
core +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
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
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
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
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