Abstract
The global energy confinement of combined ohmic and lower hybrid driven Tore Supra plasmas has been analyzed at various densities. In contradiction with the L-mode ITER scaling law, this analysis indicates that the global energy confinement time strongly depends on the plasma density. Furthermore, no isotopic dependence has been observed and the thermal electron energy content of steady-state discharges is found to be in good agreement with the global Rebut-Lallia scaling law. Current ramp experiment results show an enhancement of the global energy confinement with the internal inductance (1{sub i}). These results have been extended to steady-state regimes with lower hybrid current drive. Improved confinement has been obtained in a high-1{sub i} steady-state plasma (1{sub i}=1.7) where the plasma current density profile has been modified by lower hybrid waves. In this case, the global confinement time is shown to exceed by 40% the value predicted by the Rebut-Lallia scaling law.
Hoang, G T;
Gil, C;
Joffrin, E;
Moreau, D;
Becoulet, A;
Bibet, P;
Bizarro, J P;
Carrasco, J;
Coulon, J P;
Michelis, C de;
Dudok de Wit, T;
Garbet-Monier, P;
Goniche, M;
Guirlet, R;
Hutter, T;
Lasalle, J;
Laurent, L;
Lecoustey, P;
Litaudon, X;
Mattioli, M;
Peysson, Y;
Pecquet, A L;
Rey, G;
Saoutic, B;
Tonon, G;
Vallet, J C;
[1]
Budny, R V;
Kaye, S;
[2]
Sabbagh, S A
[3]
- Association Euratom-CEA, Centre d`Etudes de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
- Princeton Univ., NJ (United States). Plasma Physics Lab.
- Columbia Univ., New York, NY (United States). Dept. of Applied Physics
Citation Formats
Hoang, G T, Gil, C, Joffrin, E, Moreau, D, Becoulet, A, Bibet, P, Bizarro, J P, Carrasco, J, Coulon, J P, Michelis, C de, Dudok de Wit, T, Garbet-Monier, P, Goniche, M, Guirlet, R, Hutter, T, Lasalle, J, Laurent, L, Lecoustey, P, Litaudon, X, Mattioli, M, Peysson, Y, Pecquet, A L, Rey, G, Saoutic, B, Tonon, G, Vallet, J C, Budny, R V, Kaye, S, and Sabbagh, S A.
Improved confinement in high-li lower hybrid driven steady-state plasmas in Tore Supra.
France: N. p.,
1993.
Web.
Hoang, G T, Gil, C, Joffrin, E, Moreau, D, Becoulet, A, Bibet, P, Bizarro, J P, Carrasco, J, Coulon, J P, Michelis, C de, Dudok de Wit, T, Garbet-Monier, P, Goniche, M, Guirlet, R, Hutter, T, Lasalle, J, Laurent, L, Lecoustey, P, Litaudon, X, Mattioli, M, Peysson, Y, Pecquet, A L, Rey, G, Saoutic, B, Tonon, G, Vallet, J C, Budny, R V, Kaye, S, & Sabbagh, S A.
Improved confinement in high-li lower hybrid driven steady-state plasmas in Tore Supra.
France.
Hoang, G T, Gil, C, Joffrin, E, Moreau, D, Becoulet, A, Bibet, P, Bizarro, J P, Carrasco, J, Coulon, J P, Michelis, C de, Dudok de Wit, T, Garbet-Monier, P, Goniche, M, Guirlet, R, Hutter, T, Lasalle, J, Laurent, L, Lecoustey, P, Litaudon, X, Mattioli, M, Peysson, Y, Pecquet, A L, Rey, G, Saoutic, B, Tonon, G, Vallet, J C, Budny, R V, Kaye, S, and Sabbagh, S A.
1993.
"Improved confinement in high-li lower hybrid driven steady-state plasmas in Tore Supra."
France.
@misc{etde_10123448,
title = {Improved confinement in high-li lower hybrid driven steady-state plasmas in Tore Supra}
author = {Hoang, G T, Gil, C, Joffrin, E, Moreau, D, Becoulet, A, Bibet, P, Bizarro, J P, Carrasco, J, Coulon, J P, Michelis, C de, Dudok de Wit, T, Garbet-Monier, P, Goniche, M, Guirlet, R, Hutter, T, Lasalle, J, Laurent, L, Lecoustey, P, Litaudon, X, Mattioli, M, Peysson, Y, Pecquet, A L, Rey, G, Saoutic, B, Tonon, G, Vallet, J C, Budny, R V, Kaye, S, and Sabbagh, S A}
abstractNote = {The global energy confinement of combined ohmic and lower hybrid driven Tore Supra plasmas has been analyzed at various densities. In contradiction with the L-mode ITER scaling law, this analysis indicates that the global energy confinement time strongly depends on the plasma density. Furthermore, no isotopic dependence has been observed and the thermal electron energy content of steady-state discharges is found to be in good agreement with the global Rebut-Lallia scaling law. Current ramp experiment results show an enhancement of the global energy confinement with the internal inductance (1{sub i}). These results have been extended to steady-state regimes with lower hybrid current drive. Improved confinement has been obtained in a high-1{sub i} steady-state plasma (1{sub i}=1.7) where the plasma current density profile has been modified by lower hybrid waves. In this case, the global confinement time is shown to exceed by 40% the value predicted by the Rebut-Lallia scaling law.}
place = {France}
year = {1993}
month = {Feb}
}
title = {Improved confinement in high-li lower hybrid driven steady-state plasmas in Tore Supra}
author = {Hoang, G T, Gil, C, Joffrin, E, Moreau, D, Becoulet, A, Bibet, P, Bizarro, J P, Carrasco, J, Coulon, J P, Michelis, C de, Dudok de Wit, T, Garbet-Monier, P, Goniche, M, Guirlet, R, Hutter, T, Lasalle, J, Laurent, L, Lecoustey, P, Litaudon, X, Mattioli, M, Peysson, Y, Pecquet, A L, Rey, G, Saoutic, B, Tonon, G, Vallet, J C, Budny, R V, Kaye, S, and Sabbagh, S A}
abstractNote = {The global energy confinement of combined ohmic and lower hybrid driven Tore Supra plasmas has been analyzed at various densities. In contradiction with the L-mode ITER scaling law, this analysis indicates that the global energy confinement time strongly depends on the plasma density. Furthermore, no isotopic dependence has been observed and the thermal electron energy content of steady-state discharges is found to be in good agreement with the global Rebut-Lallia scaling law. Current ramp experiment results show an enhancement of the global energy confinement with the internal inductance (1{sub i}). These results have been extended to steady-state regimes with lower hybrid current drive. Improved confinement has been obtained in a high-1{sub i} steady-state plasma (1{sub i}=1.7) where the plasma current density profile has been modified by lower hybrid waves. In this case, the global confinement time is shown to exceed by 40% the value predicted by the Rebut-Lallia scaling law.}
place = {France}
year = {1993}
month = {Feb}
}