Abstract
Steady-state operation of tokamak reactors seems feasible in so-called Advanced Scenarios with high bootstrap current in high-beta{sub p} operation. The stabilization of such discharges with noninductive profile control will be attempted on JET in pursuit of previous high bootstrap current studies. Results of modelling studies of full noninductive current drive scenarios in JET and ITER are presented. Fast Waves (FW), Lower Hybrid (LH) Waves and Neutral Beam Injection (NBI) are used for heating and current drive, alternatively or in combination. A stable route to nonmonotonic q-profiles has been found with a specific ramp-up scenario which combines LH-current drive (LHCD) and a fast Ohmic ramp-up. A hollow current profile with deep shear reversal over the whole central region is thereby formed in an early low-beta phase and frozen in by additional heating. (authors). 5 refs., 4 figs.
Soeldner, F X;
Baranov, Y;
Bhatnagar, V P;
Bickley, A J;
Challis, C D;
Fischer, B;
Gormezano, C;
Huysmans, G T.A.;
Kerner, W;
Rimini, F;
Sips, A C.C.;
Springmann, R;
Taroni, A;
[1]
Goedbloed, J P;
Holties, H A;
[2]
Parail, V V;
Pereverzev, G V
[3]
- Commission of the European Communities, Abingdon (United Kingdom). JET Joint Undertaking
- Institute for Plasmas Physics, Nieuwegein (Netherlands)
- Kurchatov Institute of Atomic Energy, Moscow (Russian Federation)
Citation Formats
Soeldner, F X, Baranov, Y, Bhatnagar, V P, Bickley, A J, Challis, C D, Fischer, B, Gormezano, C, Huysmans, G T.A., Kerner, W, Rimini, F, Sips, A C.C., Springmann, R, Taroni, A, Goedbloed, J P, Holties, H A, Parail, V V, and Pereverzev, G V.
A stable route to high-{beta}{sub p} plasmas with non-monotonic q-profiles.
France: N. p.,
1994.
Web.
Soeldner, F X, Baranov, Y, Bhatnagar, V P, Bickley, A J, Challis, C D, Fischer, B, Gormezano, C, Huysmans, G T.A., Kerner, W, Rimini, F, Sips, A C.C., Springmann, R, Taroni, A, Goedbloed, J P, Holties, H A, Parail, V V, & Pereverzev, G V.
A stable route to high-{beta}{sub p} plasmas with non-monotonic q-profiles.
France.
Soeldner, F X, Baranov, Y, Bhatnagar, V P, Bickley, A J, Challis, C D, Fischer, B, Gormezano, C, Huysmans, G T.A., Kerner, W, Rimini, F, Sips, A C.C., Springmann, R, Taroni, A, Goedbloed, J P, Holties, H A, Parail, V V, and Pereverzev, G V.
1994.
"A stable route to high-{beta}{sub p} plasmas with non-monotonic q-profiles."
France.
@misc{etde_456206,
title = {A stable route to high-{beta}{sub p} plasmas with non-monotonic q-profiles}
author = {Soeldner, F X, Baranov, Y, Bhatnagar, V P, Bickley, A J, Challis, C D, Fischer, B, Gormezano, C, Huysmans, G T.A., Kerner, W, Rimini, F, Sips, A C.C., Springmann, R, Taroni, A, Goedbloed, J P, Holties, H A, Parail, V V, and Pereverzev, G V}
abstractNote = {Steady-state operation of tokamak reactors seems feasible in so-called Advanced Scenarios with high bootstrap current in high-beta{sub p} operation. The stabilization of such discharges with noninductive profile control will be attempted on JET in pursuit of previous high bootstrap current studies. Results of modelling studies of full noninductive current drive scenarios in JET and ITER are presented. Fast Waves (FW), Lower Hybrid (LH) Waves and Neutral Beam Injection (NBI) are used for heating and current drive, alternatively or in combination. A stable route to nonmonotonic q-profiles has been found with a specific ramp-up scenario which combines LH-current drive (LHCD) and a fast Ohmic ramp-up. A hollow current profile with deep shear reversal over the whole central region is thereby formed in an early low-beta phase and frozen in by additional heating. (authors). 5 refs., 4 figs.}
place = {France}
year = {1994}
month = {Jul}
}
title = {A stable route to high-{beta}{sub p} plasmas with non-monotonic q-profiles}
author = {Soeldner, F X, Baranov, Y, Bhatnagar, V P, Bickley, A J, Challis, C D, Fischer, B, Gormezano, C, Huysmans, G T.A., Kerner, W, Rimini, F, Sips, A C.C., Springmann, R, Taroni, A, Goedbloed, J P, Holties, H A, Parail, V V, and Pereverzev, G V}
abstractNote = {Steady-state operation of tokamak reactors seems feasible in so-called Advanced Scenarios with high bootstrap current in high-beta{sub p} operation. The stabilization of such discharges with noninductive profile control will be attempted on JET in pursuit of previous high bootstrap current studies. Results of modelling studies of full noninductive current drive scenarios in JET and ITER are presented. Fast Waves (FW), Lower Hybrid (LH) Waves and Neutral Beam Injection (NBI) are used for heating and current drive, alternatively or in combination. A stable route to nonmonotonic q-profiles has been found with a specific ramp-up scenario which combines LH-current drive (LHCD) and a fast Ohmic ramp-up. A hollow current profile with deep shear reversal over the whole central region is thereby formed in an early low-beta phase and frozen in by additional heating. (authors). 5 refs., 4 figs.}
place = {France}
year = {1994}
month = {Jul}
}