The preliminary experimental results of ac plasma discharges in the CT-6B tokamak have been achieved by an active plasma current feedback system and the keys to a smooth transition through current zero and some phenom...The preliminary experimental results of ac plasma discharges in the CT-6B tokamak have been achieved by an active plasma current feedback system and the keys to a smooth transition through current zero and some phenomena related to the current reversal phase are also presented.展开更多
We propose a method to determine the scaling law of the electron thermal conductivity χ^(0)_(e)T^(λ)_(e)with modulating heat pulses.Relation between tempera-ture phase lag and parameters(χ^(0)_(e)λ)is established,...We propose a method to determine the scaling law of the electron thermal conductivity χ^(0)_(e)T^(λ)_(e)with modulating heat pulses.Relation between tempera-ture phase lag and parameters(χ^(0)_(e)λ)is established,from which the electron thermal conductivity in center region of CT-6B tokamak is determined.展开更多
A brief gas puffing method has been used to determine the amount of adsorbed gas on the surface of a vacuum system when the pressure in the system is changed.The adsorbed gas is found to correspond to one monomolecula...A brief gas puffing method has been used to determine the amount of adsorbed gas on the surface of a vacuum system when the pressure in the system is changed.The adsorbed gas is found to correspond to one monomolecular layer in this experiment.展开更多
In this paper the analytical relations between the electric conductivity profile of plasma in tokamak and the measured ac conductance are given with which the electric conductivity profile of CT-6B tokamak is determined.
A full current ac-modulating tokamak discharges have been achieved in the CT-6B device.Obvious modulating changes are observed in plasma current,loop voltage,soft X-ray radiations,electron density,Hαline emission,and...A full current ac-modulating tokamak discharges have been achieved in the CT-6B device.Obvious modulating changes are observed in plasma current,loop voltage,soft X-ray radiations,electron density,Hαline emission,and hard X-ray radiations when the modulating pulse is added.The continuous tokamak operation with many cycles of low frequency modulating plasma current indicates the possibility of steady state tokamak operation.展开更多
A high density experiment has been performed by gas puffing on CT-6B tokamak.The changes in the plasma parameters caused by the gas puffing are described.The ionization efficiency measured in the experiment is about 0...A high density experiment has been performed by gas puffing on CT-6B tokamak.The changes in the plasma parameters caused by the gas puffing are described.The ionization efficiency measured in the experiment is about 0.5.The dependence of density limit on the injected gas flux is given.The maximum line-averaged electron density achieved is 4×10^(13)cm^(-3).展开更多
基金Supported by the Chinese National Advanced Technology Foundation.
文摘The preliminary experimental results of ac plasma discharges in the CT-6B tokamak have been achieved by an active plasma current feedback system and the keys to a smooth transition through current zero and some phenomena related to the current reversal phase are also presented.
文摘We propose a method to determine the scaling law of the electron thermal conductivity χ^(0)_(e)T^(λ)_(e)with modulating heat pulses.Relation between tempera-ture phase lag and parameters(χ^(0)_(e)λ)is established,from which the electron thermal conductivity in center region of CT-6B tokamak is determined.
文摘A brief gas puffing method has been used to determine the amount of adsorbed gas on the surface of a vacuum system when the pressure in the system is changed.The adsorbed gas is found to correspond to one monomolecular layer in this experiment.
文摘In this paper the analytical relations between the electric conductivity profile of plasma in tokamak and the measured ac conductance are given with which the electric conductivity profile of CT-6B tokamak is determined.
基金Supported by the National Natural Science Foundation of China.
文摘A full current ac-modulating tokamak discharges have been achieved in the CT-6B device.Obvious modulating changes are observed in plasma current,loop voltage,soft X-ray radiations,electron density,Hαline emission,and hard X-ray radiations when the modulating pulse is added.The continuous tokamak operation with many cycles of low frequency modulating plasma current indicates the possibility of steady state tokamak operation.
文摘A high density experiment has been performed by gas puffing on CT-6B tokamak.The changes in the plasma parameters caused by the gas puffing are described.The ionization efficiency measured in the experiment is about 0.5.The dependence of density limit on the injected gas flux is given.The maximum line-averaged electron density achieved is 4×10^(13)cm^(-3).
