Abstract
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-dominated initial plasma. The effect extrapolates favourably to larger tokamaks. A 50% reduction in the start-up volt-second requirement and impurity reflux is also observed.
Citation Formats
Holly, D J, Prager, S C, Shepard, D A, and Sprott, J C.
Tokamak start-up with electron-cyclotron heating.
Austria: N. p.,
1981.
Web.
Holly, D J, Prager, S C, Shepard, D A, & Sprott, J C.
Tokamak start-up with electron-cyclotron heating.
Austria.
Holly, D J, Prager, S C, Shepard, D A, and Sprott, J C.
1981.
"Tokamak start-up with electron-cyclotron heating."
Austria.
@misc{etde_5667400,
title = {Tokamak start-up with electron-cyclotron heating}
author = {Holly, D J, Prager, S C, Shepard, D A, and Sprott, J C}
abstractNote = {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-dominated initial plasma. The effect extrapolates favourably to larger tokamaks. A 50% reduction in the start-up volt-second requirement and impurity reflux is also observed.}
journal = []
volume = {21:11}
journal type = {AC}
place = {Austria}
year = {1981}
month = {Nov}
}
title = {Tokamak start-up with electron-cyclotron heating}
author = {Holly, D J, Prager, S C, Shepard, D A, and Sprott, J C}
abstractNote = {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-dominated initial plasma. The effect extrapolates favourably to larger tokamaks. A 50% reduction in the start-up volt-second requirement and impurity reflux is also observed.}
journal = []
volume = {21:11}
journal type = {AC}
place = {Austria}
year = {1981}
month = {Nov}
}