JT-60
Advanced Tokamak Research in JT-60U and JT-60SA
... In JT-60U, systems for plasma control, heating/current drive and diagnostics were upgraded to obtain a long-duration plasma with auxiliary heating using neutral beams (NBs) and electron cyclotron (EC) waves up to ...
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Integrated Performance and Critical Issues for Steady-State Operation in JT-60U
... This paper reports on the integrated performance achieved in JT-60U toward the steady-state operation fore- seen in the ITER and DEMO reactors. Advanced tokamak plasmas with weak shear or reversed shear have been ...
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A Plan for a Fast-Ion D-Alpha (FIDA) Measurement for JT-60SA
... at JT-60SA, trial measurements were performed on JT-60U by using its CXRS system for ion temperature measure- ment during the last few days before it was ...
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Analysis of ECRH Pre-Ionization for Plasma Start-Up in JT-60SA
... as JT-60U [1] and DIII-D [2] and in the superconducting tokamak KSTAR ...the JT- 60SA superconducting tokamak, which is now under con- struction at the JAEA [5], also has a limited toroidal elec- tric field ...
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Density Fluctuation Measurements Using a Frequency Hopping Reflectometer in JT-60U
... In JT-60U, the confinement properties and onset con- ditions of the internal transport barrier (ITB) in weak pos- itive magnetic shear, and weak and strong reversed mag- netic shear plasmas have been studied [1, ...
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Development of a Lithium Beam Probe and Measurement of Density Pedestal in JT-60U
... In JT-60U, ELM studies for type I ELMs [7–9] and grassy ELMs [10, 11] have been extensively ...as JT-60U, it is difficult for the edge diagnos- tics to satisfy both the highly spatial and temporal reso- ...In ...
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Linear and non linear plasma equilibrium responses on the JT 60U and TCV tokamaks
... Thanks go to the TCV and JT-60U teams without whom the experimental results would not be comparable with the models. Two of the au- thors (RK, VL) thank the CRPP for their hospi- tality during visits to TCV. Two ...
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Orbit Following Calculation of Energetic Ions in the Design of Ferritic Insertion in the JT-60U
... The injected neutral beams were 7 perpendicular PNBs, 2 co-tangential PNBs, and 2 counter-tangential PNBs as shown in Fig. 2. The injection energy was 85 keV for this analysis. The total injected power was about 24.75 MW ...
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Physics Mechanisms of Toroidal Rotation Profile and Properties of Momentum Transport in JT-60U
... The JT-60 project has addressed major physics issues toward the understanding and opera- tion of burning steady-state plasmas, and promoted an in- tegrated research project focusing on the ...
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Study of JT-60SA Operation Scenario using a Plasma Equilibrium Control Simulator
... A plasma position and shape control simulator that in- corporates the effect of eddy currents has been developed in order to study the techniques of plasma position and shape control in JT-60SA [7]. A function that ...
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Spatial Structure of Volume Recombination in JT-60U Detached Divertor Plasmas
... is required. This indicates that the ionizing plasma com- ponent is negligibly low in the divertor plasma parameter range, and that other different processes such as molec- ular assisted recombination (MAR) are involved. ...
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Role of the Electron Temperature in the Current Decay during Disruption in JT-60U
... in JT-60U owing to a massive neon gas puff by using the disruption simulation code ...in JT-60U, the fast electron temperature decrease is followed by a transient plasma current ...
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Optimization of the Magnetic Sensor Configuration for JT-60SA Plasma Control
... The e ff ect of the magnetic sensor noise on CCS re- construction error was investigated. To increase the signal- to-noise ratio, we adopted the magnetic sensors with the large coupling area that were same as those ...
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Development of Advanced Tokamak Operation Scenarios in JT-60U and JT-60SA
... The JT-60U program [1] has taken place in order to contribute to ITER and DEMO through providing physics basis and Advanced Tokamak (AT) operation ...2008 JT-60U successfully completed operation, and the ...
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Development of Langmuir Probes on Divertor Cassettes in JT-60SA
... In this study, the Langmuir probes that can be installed on the lower divertor in JT-60SA without needing to embed them in the divertor tiles have been developed and manu- factured. In this paper, the design ...
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ECH and ECCD effects on NTMs stabilization by ECRF in JT-60SA tokamak
... of JT-60SA the capability to well localize heating and current drive has been considered for various physics studies, such as the neoclassical tearing modes (NTMs) instabilities control, key issue to sustain high ...
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Rotational Stabilization of Resistive Wall Mode on JT-60U
... plasma close to the wall for wall stabilization with suffi- cient heating power. Figure 2 gives the poloidal cross sec- tion of JT-60U with a plasma and the ferritic steel tiles. The ferritic steel tiles cover the ...
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Study of Plasma Equilibrium Control for JT-60SA using MECS
... A magnetohydrodynamic equilibrium control simulator (MECS) has been developed to study the techniques of plasma equilibrium control in JT-60SA. The new modules of the plasma shape reconstruction, power supply, and ...
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Development of a Simulator for Plasma Position and Shape Control in JT-60SA
... The isoflux technique is employed for the control of the position and shape in JT-60SA. A set of locations that defines the desired plasma separatrix is specified as the control points. The PF coil currents are ...
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M4Sem2review1-60+key
... Suppose you invest $1600 at an annual interest rate of 4.6% compounded continuously.. How much will you have in the account after 4 years.[r] ...
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