On the ECCD current density profile with particle diffusion in eITBs and its impact on the q-profile
Journal Article
·
· AIP Conference Proceedings
- Ecole Polytechnique Federale de Lausanne (EPFL), Centre de Recherches en Physique des Plasmas, Association Euratom-Confederation Suisse, CH-1015 Lausanne (Switzerland)
The Fokker-Planck code CQL3D has been used to investigate the effect of radial particle diffusion on ECCD current density profiles in the TCV tokamak. For two discharges with electron internal transport barriers (eITB), the jcd and the resulting q-profile have been calculated and reconstructed. The studied eITBs are of two kinds: fully sustained non-inductive eITB with off-axis co-current ECCD, or with a large Ohmic current and on-axis counter ECCD. It is shown that different diffusion profiles do modify the ECCD current density profiles, but that the resulting q-profiles are less influenced due to the resulting necessary self-consistent inductive current contribution.
- OSTI ID:
- 20895132
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 871; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Control of the eITB formation and performance in fully non-inductively sustained ECCD discharges in TCV
RADIAL TRANSPORT EFFECTS ON ECCD IN THE TCV AND DIII-D TOKAMAKS AND ON OHMIC DISCHARGES IN THE MST RFP
Detailed Measurements of ECCD Efficiency on DIII-D for Comparison with Theory
Journal Article
·
Mon Sep 26 00:00:00 EDT 2005
· AIP Conference Proceedings
·
OSTI ID:20726352
RADIAL TRANSPORT EFFECTS ON ECCD IN THE TCV AND DIII-D TOKAMAKS AND ON OHMIC DISCHARGES IN THE MST RFP
Conference
·
Mon Jul 01 00:00:00 EDT 2002
·
OSTI ID:804667
Detailed Measurements of ECCD Efficiency on DIII-D for Comparison with Theory
Conference
·
Wed May 01 00:00:00 EDT 2002
·
OSTI ID:804355