Abstract
The quasi continuous f=3.7 GHz Lower Hybrid system installed in Tore Supra, consists of two multijunction launchers fed by 16 klystrons having a total power capability of 8 MW. Up to now, the RF power coupled to the 1.6 MA/3.85T Helium plasma at a line average density of 3.8x10{sup 19}m{sup -3} has reached 4.5 MW, which was not sufficient to replace completely the OH current by the LH driven current. The experimental resuls have been simulated by an upgraded version of the Bonoli-Englade-Fuchs code. Its main features are: a toroidal ray-tracing module; a transport module in which the electron thermal diffusivity varies with minor radius; a 1D Fokker-Planck calculation, where two-dimensional effects are included by increasing the perpendicular temperature of fast electrons in the tail generated by the LH waves; a global model for the radial diffusion of the RF current in which the current diffusion coefficient is found as an eigenvalue of a boundary value problem consistent with the conservation laws predicted by the Fokker-Planck equation.
Bizarro, J P;
Hoang, G T;
Berger By, G;
Bibet, P;
Capitain, J J;
Goniche, M;
Litaudon, X;
Magne, R;
Moreau, D;
Peysson, Y;
Rax, J M;
Rey, G;
Tonon, G;
[1]
Fuchs, V;
Hubbard, A
[2]
- Association Euratom-CEA, Centre d`Etudes Nucleaires de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
- Quebec Univ., Varennes, PQ (CA). Energy Research Centre
Citation Formats
Bizarro, J P, Hoang, G T, Berger By, G, Bibet, P, Capitain, J J, Goniche, M, Litaudon, X, Magne, R, Moreau, D, Peysson, Y, Rax, J M, Rey, G, Tonon, G, Fuchs, V, and Hubbard, A.
Analysis and simulations of lower hybrid current drive in mixed OH-LH discharges in Tore-Supra.
France: N. p.,
1991.
Web.
Bizarro, J P, Hoang, G T, Berger By, G, Bibet, P, Capitain, J J, Goniche, M, Litaudon, X, Magne, R, Moreau, D, Peysson, Y, Rax, J M, Rey, G, Tonon, G, Fuchs, V, & Hubbard, A.
Analysis and simulations of lower hybrid current drive in mixed OH-LH discharges in Tore-Supra.
France.
Bizarro, J P, Hoang, G T, Berger By, G, Bibet, P, Capitain, J J, Goniche, M, Litaudon, X, Magne, R, Moreau, D, Peysson, Y, Rax, J M, Rey, G, Tonon, G, Fuchs, V, and Hubbard, A.
1991.
"Analysis and simulations of lower hybrid current drive in mixed OH-LH discharges in Tore-Supra."
France.
@misc{etde_10131406,
title = {Analysis and simulations of lower hybrid current drive in mixed OH-LH discharges in Tore-Supra}
author = {Bizarro, J P, Hoang, G T, Berger By, G, Bibet, P, Capitain, J J, Goniche, M, Litaudon, X, Magne, R, Moreau, D, Peysson, Y, Rax, J M, Rey, G, Tonon, G, Fuchs, V, and Hubbard, A}
abstractNote = {The quasi continuous f=3.7 GHz Lower Hybrid system installed in Tore Supra, consists of two multijunction launchers fed by 16 klystrons having a total power capability of 8 MW. Up to now, the RF power coupled to the 1.6 MA/3.85T Helium plasma at a line average density of 3.8x10{sup 19}m{sup -3} has reached 4.5 MW, which was not sufficient to replace completely the OH current by the LH driven current. The experimental resuls have been simulated by an upgraded version of the Bonoli-Englade-Fuchs code. Its main features are: a toroidal ray-tracing module; a transport module in which the electron thermal diffusivity varies with minor radius; a 1D Fokker-Planck calculation, where two-dimensional effects are included by increasing the perpendicular temperature of fast electrons in the tail generated by the LH waves; a global model for the radial diffusion of the RF current in which the current diffusion coefficient is found as an eigenvalue of a boundary value problem consistent with the conservation laws predicted by the Fokker-Planck equation.}
place = {France}
year = {1991}
month = {Dec}
}
title = {Analysis and simulations of lower hybrid current drive in mixed OH-LH discharges in Tore-Supra}
author = {Bizarro, J P, Hoang, G T, Berger By, G, Bibet, P, Capitain, J J, Goniche, M, Litaudon, X, Magne, R, Moreau, D, Peysson, Y, Rax, J M, Rey, G, Tonon, G, Fuchs, V, and Hubbard, A}
abstractNote = {The quasi continuous f=3.7 GHz Lower Hybrid system installed in Tore Supra, consists of two multijunction launchers fed by 16 klystrons having a total power capability of 8 MW. Up to now, the RF power coupled to the 1.6 MA/3.85T Helium plasma at a line average density of 3.8x10{sup 19}m{sup -3} has reached 4.5 MW, which was not sufficient to replace completely the OH current by the LH driven current. The experimental resuls have been simulated by an upgraded version of the Bonoli-Englade-Fuchs code. Its main features are: a toroidal ray-tracing module; a transport module in which the electron thermal diffusivity varies with minor radius; a 1D Fokker-Planck calculation, where two-dimensional effects are included by increasing the perpendicular temperature of fast electrons in the tail generated by the LH waves; a global model for the radial diffusion of the RF current in which the current diffusion coefficient is found as an eigenvalue of a boundary value problem consistent with the conservation laws predicted by the Fokker-Planck equation.}
place = {France}
year = {1991}
month = {Dec}
}