The aim of WEST [1] [2] is to master long pulses (> 30s and up to 1000s) and submit ITER like tungsten divertor tiles to power fluxes of 10 MW/m2. To reach these goals, the Tore Supra Lower Hybrid Current Drive system (LHCD) constituted by two launchers with an injection power capability of 7MW/1000s has been upgraded to meet WEST new environment (diverted plasma, new launchers positions). In particular, the LH1 Full Active Multi-junction launcher (FAM) has been toroidally reshaped to match the new magnetic configuration. The poloidal curvature of the plasma has also been optimized to guarantee good coupling properties of the waves. During the last experimental campaign (October-December 2018), we obtained 30s repetitive pulses with a LH power of 2.7 MW (more than 2 hours of plasma during the experimental campaign) and 43 discharges with a total LH power from 4-5.3 MW. This paper describes the results obtained in term of coupling for both launchers. Thanks to Infra-Red (IR) monitoring it also assesses the reshaping of LH1 in terms of thermal loads due to supra-thermal electrons on the launcher edges. During the upcoming experimental campaign, the IR coverage will further improve allowing assessing the LH2 Passive Active Multi-junction launcher (PAM) thermal loads.
Skip Nav Destination
Article navigation
16 September 2020
23RD TOPICAL CONFERENCE ON RADIOFREQUENCY POWER IN PLASMAS
14–17 May 2019
Hefei, China
Research Article|
September 16 2020
Coupling properties of the LHCD launchers in the WEST experiments
L. Delpech;
L. Delpech
a)
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
a)Corresponding author: [email protected]
Search for other works by this author on:
A. Ekedahl;
A. Ekedahl
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
A. Liang;
A. Liang
2
Southwestern Institute of Physics
, P.O. Box 432, Chengdu 610041, China
Search for other works by this author on:
J. Achard;
J. Achard
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
A. Armitano;
A. Armitano
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
P. Bienvenu;
P. Bienvenu
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
X. Courtois;
X. Courtois
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
M. Goniche;
M. Goniche
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
R. Nouailletas;
R. Nouailletas
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
X. Regal-Mezin;
X. Regal-Mezin
1
CEA, IRFM
, F-13108 Saint Paul-Lez-Durance, France
Search for other works by this author on:
a)Corresponding author: [email protected]
AIP Conf. Proc. 2254, 080004 (2020)
Citation
L. Delpech, A. Ekedahl, A. Liang, J. Achard, A. Armitano, P. Bienvenu, X. Courtois, M. Goniche, R. Nouailletas, X. Regal-Mezin, the WEST team; Coupling properties of the LHCD launchers in the WEST experiments. AIP Conf. Proc. 16 September 2020; 2254 (1): 080004. https://doi.org/10.1063/5.0013637
Download citation file:
Citing articles via
Inkjet- and flextrail-printing of silicon polymer-based inks for local passivating contacts
Zohreh Kiaee, Andreas Lösel, et al.
Design of a 100 MW solar power plant on wetland in Bangladesh
Apu Kowsar, Sumon Chandra Debnath, et al.
Effect of coupling agent type on the self-cleaning and anti-reflective behaviour of advance nanocoating for PV panels application
Taha Tareq Mohammed, Hadia Kadhim Judran, et al.
Related Content
First lower hybrid current drive experiments on the WEST tokamak
AIP Conf. Proc. (September 2020)
New launchers for Tore Supra LHCD
AIP Conference Proceedings (April 1997)
Upgrade and validation on plasma of the Tore Supra CW LHCD generator
AIP Conference Proceedings (December 2011)
A high-field side scrape-off layer reflectometer on DIII-D for LHCD coupling studies
AIP Conf. Proc. (August 2023)
DIII-D high field side lower hybrid current drive launcher manufacturing and assembly overview
AIP Conf. Proc. (August 2023)