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Diagnostics/systems development in LNF for JT-60SA
- JT-60SA First plasma achieved in October 2023. 1 MA diverted plasma for about 3s, max Ip 1.2MA achieved in November 2023
- Long shutdown period in preparation of OP2: >2y (expected operation schedule: Nov 2025-Jul 2026)
Doppler Reflectometer for JT-60SA
CIEMAT is leading an EUROfusion project for the design of a Doppler Reflectometer system for JT-60SA. The Doppler reflectometer (DR) provides detailed measurements of radial profiles of perpendicular plasma flows and turbulence characteristics, which are essential elements to understanding plasma confinement and stability. The data obtained from the Doppler reflectometer can also provide valuable information for the validation of turbulence models in conditions relevant to ITER and DEMO, highlighting the relevance of JT-60SA as the perfect benchmark for this kind of studies.
The installation of a DR system in JT-60SA benefits from the expertise on the design, operation and scientific exploitation of Doppler reflectometry systems developed in the LNF (DR systems in operation in TJ-II, W7-X) and aligns with one of the main lines of research in LNF, i.e., the validation of gyrokinetic models.
The JT-60SA project represents a significant milestone in the advancement of fusion research, and the installation of advanced diagnostic tools like the Doppler reflectometer can greatly contribute to achieving the project's scientific and technological goals.
Centrifuge accelerator for the pellet injector in JT-60SA
SENER Aeroespacial has a project with F4E for designing, building, testing and installing the centrifuge accelerator for the JT-60SA pellet launching system. [Contract F4E-OPE-1102]
CIEMAT has signed an 18-month contract with SENER to act as technical consultants for the project (K. J. McCarthy, D. Jimenez).
The system is now designed. Geopolitical problems have delayed the delivery of the PELIN (Russia) pellet extruder (G. Olivella, ISFNT Conference (2023), Gran Canaria)
The JT-60SA tokamak
- Designed and built jointly by Japan and EU at the Naka site under the Broader Approach agreement
- JT-60SA is the largest tokamak before ITER. JT-60SA represents an intermediate step between JET and ITER (no Tritium capabilities in JT-60SA)
- Fully superconducting, high current, highly shaped. High input power flexibility
- Jointly exploited by Japan and EU
Useful links for JT-60SA
- Next steps after the integrated commissioning in JT60SA (JET TF-meeting 24/Jan/2024) by J. García (EU Experimental Leader in JT-60SA). It gives general information about the relevance of JT-60SA in the EU fusion programme and describes how the project is organized, with an EU-Japan leadership.
- JT-60SA research plan v.4 (Sept/2018). It describes generic scientific objectives, mainly focusing on key goals
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