toroidal field
A Fast Discharge Scheme of Toroidal Field Coils for Fusion Demo Reactors
... This paper describes an emergency fast discharge scheme of toroidal field (TF) coils of fusion demo reactors for reduction of induced voltage applied to turn insulations of conductors. TF coils are divided ...
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Roles of Toroidal Rotation at the Plasma Edge, Toroidal Field Ripple and Configuration on ELMs in the JT-60U Tokamak
... of toroidal rotation at the plasma edge on ELMs in inward-shifted, small-volume ...of toroidal field ripple and/or plasma config- urations on ELMs, in addition to new findings after the in- ...
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Radiation Resistant Insulation Systems for the ITER Toroidal Field Coils
... After irradiation to 2x1022 m-2 E>0.1 MeV, the ILSS remains nearly unchanged for both materials in 0° direction, and is slightly reduced by about 10 % in 90° direction to approximately 5[r] ...
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Resistive evolution of toroidal field distributions and their relation to magnetic clouds
... magnetic field is effectively ‘frozen-in’ and moves with the fluid motion (Alfvén 1943; Batchelor 1950; Priest & Forbes 2000), thus there can be no net flow of fluid perpendicular to the field lines if ...
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Catastrophe versus instability for the eruption of a toroidal solar magnetic flux rope
... evolving toroidal current channel of major radius R and minor radius a immersed in a given bipolar or quadrupolar external field as our model for the source region of ...a toroidal flux ...poloidal ...
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Recent Results from the Development of the Electron Cyclotron Heating System for JT-60SA toward High-Power Long-Pulse Operations
... The frequency of the EC waves is assumed to be 110 GHz in order to fully utilize the gyrotron system for JT-60U. Figure 5 shows the ECCD characteristics evalu- ated by the EC-Hamamatsu code [5] for Scenario 5, which aims ...
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Reversals in the large-scale -dynamo with memory
... the toroidal field is generated from poloidal by joined α-effect and ...the toroidal field can be ...netic field is the result of the predominant role of differential ...
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Fully non-inductive plasma start-up with lower-hybrid waves using the outboard-launch and top-launch antennas on the TST-2 spherical tokamak
... the toroidal field since it was difficult to perform accurate density control with the present system implemented on ...vertical field (d) was kept steady while the toroidal field (c) ...
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The connection between stellar activity cycles and magnetic field topology
... An explanation for the di ff ering magnetic topologies on each branch may lie in the dynamos of these stars. It is thought that strong shearing, i.e. an Ω e ff ect, can generate toroidal field from a ...
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Polarisation Coherence Imaging of Electric and Magnetic Fields in Plasmas
... with toroidal field and plasma current in the normal direction the IMSE measurements were fairly consistent with the conventional MSE measurements, particularly after considerations were made for the ...
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Eridani: an active K dwarf and a planet hosting star? The variability of its large-scale magnetic field topology
... magnetic field geometry evolves over the timescale of its S-index cycle using spectropolarimetric observations and the technique of Zeeman-Doppler ...magnetic field topology, with no stable regions. The ...
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JET Joint European Torus EUR 8306 EN
... Contents The JET Joint Undertaking The JET Project Machine Construction Machine Components Machine Octant Assembly Vacuum Vessel Toroidal Field Coils Poloidal Field Coils Mechanical Stru[r] ...
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Characterization of Quasi-Single-Helicity States in a Low-Aspect-Ratio RFP
... of toroidal symmetry of the toroidal magnetic ...the toroidal field coil current starts to be reversed in coincidence with the start of plasma current and toroidal flux slightly vary ...
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Analysis of Energy Conversion during Co- and Counter-Helicity Spheromak Merging by Particle-In-Cell Simulation
... Plasma merging has been proposed as an attractive startup method for obtaining compact and high-beta con- figurations, utilizing the fast energy conversion of magnetic reconnection. In this paper, we investigate energy ...
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The evolution of a Tokamak discharge
... In an attempt to determine the significance of the minimum value of q for the relaxation of the current profile a scan has been made, altering the magnitude of the toroidal magnetic field. This was ...
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Application of He I Line Intensity Ratio Method to Tokamak Plasma in TOKASTAR-2
... magnetic field coils in a vac- uum vessel (φ ...coils, Toroidal Field (TF) coil, Ohmic Heating (OH) coil, and Pulsed Vertical Field (PVF) coil, are ...helical field on tokamak plasma, ...
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A solar like magnetic cycle on the mature K dwarf 61 Cygni A (HD 201091)
... and toroidal field components, in phase with its chromospheric activity ...large-scale field geometry as it evolves from minimum activity to maximum activity and vice ...radial field flips ...
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Impact of drifts in edge plasma of small size divertor tokamak
... The divertor asymmetry has been observed experimen- tally in several tokamaks with a single null divertor con- figuration [1-5]. Moreover, the degree of in/out divertor asymmetries depends on the line averaged density ...
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Modelling neutron star magnetic fields
... a field that varies at a similar scale as the electron number ...magnetic field contains a strong azimuthal ...a field is per- pendicular to the radius of the star, while the gradient of the electron ...
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Lecture 7 Capacitors and dielectric permittivity Capacitance of parallel-plate capacitor Capacitance per meter of coaxial cable Magnetic permeability Inductance Inductance of Solenoid Inductance of Toroid Mutual Inductance Coefficient of Coupling
... E field is perpendicular to the plates. Near the edges the E field "fringes" where E is no longer perpendicular to the plates, but this is kept to a minimum for d << ...
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