Tokamak start-up with electron-cyclotron heating
نویسندگان
چکیده
منابع مشابه
Tokamak start-up with electron-cyclotron heating
Experiments are described in which the start-up voltage in a tokamak is reduced by about a factor of two by the use of a modest amount of electron cyclotron resonance heating power for pre-ionization. The solution of the zero-dimensional start-up equations indicates that the effect is due to the high initial density which increases the rate at which the conductivity increases in the neutral-dom...
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Although both 1 harmonic ordinary mode (O1) and 2 harmonic extra-ordinary mode (X2) have been successfully used to initiate pre-ionization and breakdown in many devices, a complete theoretical model is still missing to explain the success of this method. Moreover, some experimental observations are not completely understood, such as what occurs during the delay time between the turn-on of ECRH ...
متن کاملDesign Study of a Tokamak Power Reactor with an Electron Cyclotron Resonance Heating System
A detailed design is presented of a tokamak power reactor with an electron cyclotron resonance heating system. Major research topics include: physics constraints imposed on the design of a reactor by the ECR wave absorption conditions; design of the high frequency (200 GHz) gyrotrons needed for plasma heating; the gyrotron power and magnet systems; a microwave transmission system in oversize wa...
متن کاملBernstein rays in a Tokamak plasma in the electron - cyclotron heating conditions
TECHNOLOGICAL advances in the construction of high-frequency tubes (gyrotrons) (ALIKAEV et al., 1978; .TORY, 1978) have produced a sustained interest in the possibility of using microwave energy in the electron-cyciotron frequency range (ECF) o = ace, as a promising additional heating scheme for Tokamak plasmas. Nearly all proposed experiments, which will become operative in the next two years ...
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ژورنال
عنوان ژورنال: Nuclear Fusion
سال: 1981
ISSN: 0029-5515,1741-4326
DOI: 10.1088/0029-5515/21/11/015