plasma electron cyclotron resonance heating
Microwave Reflection from the Region of Electron Cyclotron Resonance Heating in the L-2M Stellarator
... high-temperature plasma in toroidal magnetic confinement systems, reflection of mi- crowaves from the electron cyclotron resonance (ECR) re- gion, where the heating radiation is absorbed, ...
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Benchmarking of electron cyclotron heating and current drive codes on ITER scenarios within the European Integrated Tokamak Modelling framework
... Electron cyclotron (EC) resonance heating and current drive (H&CD) will be one of the auxiliary sys- tems available in ITER [1], and it is particularly important to have the EC system ...
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Efficient Heating at the Third-Harmonic Electron Cyclotron Resonance in the Large Helical Device
... More sophisticated calculation using ray-tracing code “TRAVIS”, which has been developed in IPP Greifswald (Germany), was successfully performed in the three- dimensional magnetic configuration of LHD. In this code, ...
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Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD
... (SDC) plasma in LHD, [2] study of ECRH by the EBW has grown in ...the electron density at the electron cyclotron resonance (ECR) layer exceeds the cutoff density of the electron ...
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Beam tracing study for design and operation of two-pass electron cyclotron heating at ASDEX Upgrade
... The electron cyclotron resonance heating system at ASDEX Upgrade (AUG) is currently being extended to eight similar Gyrotrons in ...the plasma density may be above the X-2 cut-off ...
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Study on Poloidal and Toroidal Electric Field Generations by Electron Cyclotron Heating in a Helical Plasma
... Electron cyclotron heating (ECH) accelerates elec- trons perpendicularly, and generates trapped particles that tend to localize at the resonance ...
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Design and Research of Electron Cyclotron Resonance Heating and Current Dive System on HL-2M Tokamak
... Available space, port shape and port size of HL-2M tokamak suggest using two different kinds of steering mechanism for the poloidal and toroidal movement. In order to save space, wire rope and servo motor were applied in ...
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Microinstabilities in high power electron cyclotron heating of plasmas
... additional heating, in many ways ECRH is the ...the cyclotron frequency (Stix, 1962), V|-|j being the thermal velocity and c the velocity of light, the E_ component vanishes in the cold plasma ...for ...
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Study of Optical Properties of Tokamak Plasma
... of electron-cyclotron (EC) waves is nowadays a well-established method for coupling energy to plasma electrons in modern fusion devices, with primary applications the plasma heating ...
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Electron Cyclotron Heating Start-Up Experiments on TST-2
... the electron den- sity on the outboard side and the Hα emission show a clear increase and decrease during the current ...the plasma often shows a slight ra- dial and vertical expansion during a current ...
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Capabilities of the ITER Electron Cyclotron Equatorial Launcher for Heating and Current Drive
... is driven due to the low plasma density. XM interaction at first harmonic is usually prevented when the EC beams are injected from the low field side because of the presence of the right cuto ff , that is located ...
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ICRF Heating in Helical Reactor
... by electron and tritium normalized by initial wave ...the plasma density, and the por- tion of absorption by electron and tritium was ...the cyclotron reso- nance of tritium, electrons start ...
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Advanced electron cyclotron heating and current drive experiments on the stellarator Wendelstein 7-X
... first plasma was created in Wendelstein 7-X ...relevant plasma parameters in quasi steady state operation ...MW electron cyclotron resonance heating (ECRH) system allowing at ...
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Physics of Heliotron J Confinement
... of electron cyclotron resonance (ECR)/neutral beam injection (NBI)/ion cyclotron range of frequencies (ICRF) heating plasmas have been made for understanding global energy confinement ...
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Generation of Supersonic and Super-Alfvénic Flow Using ICRF Heating and a Magnetic Nozzle
... One of the reasons for the low efficiency is the low value of antenna coupling with plasmas. In order to im- prove the antenna coupling, we performed the same experi- ments using an antenna with a smaller diameter of 130 ...
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Design and development of the ITER CTS diagnostic
... given plasma scenario and scattering spectrum, it may be possible to infer some information relating to the fuel ion ratio, as there will be spectral content containing information on this even with the ...
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Resonance Cones in the Field Pattern of a Short Radio Frequency Probe in a Warm Anisotropic Plasma
... cone whose axis is parallel to the static magnetic field and whose opening angle is observed to vary with incident probe frequency, electron cyclotron frequency, and electron plasma freq[r] ...
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Status of the design of the ITER ECE diagnostic
... approach, the design is probably not sufficiently robust for use on ITER. Some of the free-standing heaters designs showed issues with wire sagging. This was likely due to localized wire overheating. A post-mortem ...
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Mitigation of energetic electrons in the magnetosphere by amplified whistler wave under double cyclotron resonances
... duced electron precipitation (Voss et ...tron cyclotron resonance interaction (Kennel and Petschek, 1966; Villalon and Burke, 1991; Albert, 2000) has been sug- gested to be a likely electron ...
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Simulation Study of ECCD by GNET with Momentum Conserving Collisional Operator
... In the present GNET code, the linear Monte Carlo col- lision operator is applied. This operator expresses the col- lisional effect between test particle and background par- ticle only as the pitch angle scattering and ...
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