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New modelling capabilities to support the ITER EC H&CD System optimisation and preparation of plasma operation

Authors :
Preynas Melanie
Schneider Mireille
Arroyo Jose Manuel
Beaumont Florent
Casal Natalia
Choe Munseok
Carannante Giuseppe
Gandini Franco
Henderson Mark A.
Omori Toshimichi
Pascal Sandrine
Source :
EPJ Web of Conferences, Vol 277, p 01004 (2023)
Publication Year :
2023
Publisher :
EDP Sciences, 2023.

Abstract

The ITER Electron Cyclotron Resonance Heating (ECRH) & Current Drive (ECCD) system is planned to be progressively installed and commissioned following the four stage approach of the ITER Research Plan. Starting with an injection of up to 5.8 MW from one Upper Launcher (UL) in the vacuum vessel to assist the plasma breakdown during First Plasma (FP) operation, the system will then be extended to achieve a capability of 20 MW injected power in Pre-Fusion Plasma Operation (PFPO) and Fusion Power Operation (FPO) phases. Development of optical modelling was required to characterize the optical performance of the FP configuration with the so-called First Plasma Protection Components. An optical 3D model using Zemax OpticStudio® has been developed and extended to the UL. Effects of higher order modes, thermal deformations and tolerances on the UL functionality have been characterized and are presented. Finally, in preparation of plasma operation and in the frame of the EC system upgrade layout optimisation, ECRH-ECCD modelling is being undertaken within the ITER Integrated Modelling and Analysis (IMAS) suite.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
277
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.861f27998dd24d4d9953d1d6fc703b3d
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/202327701004