electron cyclotron resonance heating
Design and Research of Electron Cyclotron Resonance Heating and Current Dive System on HL-2M Tokamak
... Abstract. A research has been conducted to develop an 8MW electron cyclotron resonance heating and current drive (ECRH/ECCD) system on HL-2M tokamak. The ECRH system compromise eight 1MW ...
5
Microwave Reflection from the Region of Electron Cyclotron Resonance Heating in the L-2M Stellarator
... the electron cyclotron resonance (ECR) re- gion, where the heating radiation is absorbed, is usually ...the electron gyrofrequency, the absorption region is much shorter than the ...
5
Recent Progress of 2MW 140GHz ECRH System on HL-2A
... new electron cyclotron resonance heating and current drive (ECRH/ECCD) launcher system has been designed and installed on the HL-2A tokamak to inject four beams and enable continuous ...
6
Remote-Steering Antennas for 140 GHz Electron Cyclotron Heating of the Stellarator W7-X
... For electron cyclotron resonance heating of the stellarator W7-X at IPP Greifswald, a 140 GHz/10 MW cw millimeter wave system has been ...
5
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 heating system will operate in the O-2 mode ...
6
Advanced electron cyclotron heating and current drive experiments on the stellarator Wendelstein 7-X
... MW electron cyclotron resonance heating (ECRH) system allowing at least 30 minutes continuous ...harmonic heating at the magnetic axis with a local magnetic field of ...plasma ...
6
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 ...
6
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 ...
211
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 ...gradual electron density increase and a peri- odical ejection of plasma from the ...
5
ICRF Heating in Helical Reactor
... by electron and tritium normalized by initial wave ...by electron and tritium was ...the cyclotron reso- nance of tritium, electrons start to absorb wave energy due to enhanced electron ...
5
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 ...
6
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 ...
7
Efficient Heating at the Third-Harmonic Electron Cyclotron Resonance in the Large Helical Device
... ures, dashed lines represent the results of ray-tracing cal- culations. In the calculations, the dispersion relation of a cold plasma was assumed for ray-trajectory calculations, and the weakly relativistic effect was ...
5
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 (ECRH) and the ...
5
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 in the ...
6
Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD
... the electron density at the electron cyclotron resonance (ECR) layer exceeds the cutoff density of the electron cyclotron (EC) wave in high density operations and in such ...
7
Estimation of the j × B Force Produced by Electron Cyclotron Heating in HSX Plasma
... Many experiments suggest an important role of toroidal flow in turbulence transport. Recently, sponta- neous toroidal flows have been observed in electron cy- clotron heating (ECH) plasma in many tokamak ...
5
Electron Energy Loss Spectroscopy of Carbon Films Prepared by Electron Cyclotron Resonance Plasma Sputtering
... the electron den- sity could be different depending on the ...averaged electron density of the films does not vary much when the spectrum recorded from the circular area of φ 225 ...
5
Comment on “Comparative study on earthquake and ground based transmitter induced radiation belt electron precipitation at middle latitude”, by Sideropoulos et al. (2011)
... the electron burst with the enhanced VLF signal recorded in the Northern Hemisphere between 13:17 and 13:25 UT and noted that an- other VLF burst was also seen in the Southern ...
9
Simulation Study of ECCD in Helical Plasmas
... In the high bumpiness case (Fig. 2 (b)), since the EC wave is absorbed at the bottom of the magnetic rip- ple, many accelerated electrons become trapped electrons. From Fig. 2 (b) it is found that the distribution of the ...
5