Conveners
Wed-Af-Po.09 - Magnets for Tokamaks: Design and Analysis
- Yusuke Sogabe (Kyoto University)
- Xabier Sarasola (EPFL-SPC)
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Dr Quanyue Liu (Institute of Electrical Engineering, Chinese Academy of Sciences)02/07/2025, 14:30Poster
For advancing the development of fully superconducting tokamak magnets and accelerating the progress to the next step in fusion reactor DEMO design, a refined and integrated large-scale superconducting tokamak simulation platform is being developed in China. The aim is to optimize the design and performance of tokamak magnets, improve their efficiency and reliability, solve complex...
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Rod Bateman02/07/2025, 14:30Poster
At Tokamak Energy (TE) we have been working on a range of technology blocks and magnet demonstrators to raise the Technical Readiness Level (TRL) of REBCO HTS based magnets for spherical tokamaks (ST). This is a broad programme addressing technologies including coil manufacturing, quench protection, modelling and simulation, HTS irradiation, and other aspects. This talk will demonstrate how...
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William Iliffe02/07/2025, 14:30Poster
The economic viability of fusion power plants such as UK Industrial Fusion Solutions Spherical Tokamak for Energy Production (STEP) [1] is a function of their size, toroidal field (TF) strength and availability throughout their operating lifetime [2]. This optimisation has led STEP to adopt a compact design featuring TF cables comprising a stack of rare-earth barium copper oxide (REBCO) ...
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Alexandre Torre02/07/2025, 14:30Poster
In 2024, a new EU-DEMO baseline was released which changed substantially the constraints on the magnets systems. In particular, the stored energy of the TF system is about half of the former baseline value, which is bound to impact the magnetic loads as well as the coils protection.
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After summarizing the main changes in the design inputs, this paper will present the changes implemented in... -
Xufeng Liu02/07/2025, 14:30Poster
The BEST (Burning Plasma Experimental Superconducting Tokamak) is a compact tokamak device under design. The parameters of the device include major radius is 3.6m, minor radius is 1.1m, plasma current is 7MA, and central field strength is 6.15T. The magnet system of the device consists of 12 central solenoid coils (6 high-temperature superconducting coils and 6 low-temperature superconducting...
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Mr Zhengxin Yin (Tsinghua University)02/07/2025, 14:30Poster
The spherical tokamak (ST), characterized by its low aspect ratio and compact geometry, necessitates a toroidal filed (TF) coil design that typically adopts a sharper D-shape profile. This design is distinguished by its slender and tall configuration with a reduced radius of curvature, which can result in localized magnetic field and stress concentration on coils. Furthermore, the...
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Simonetta Turtu02/07/2025, 14:30Poster
DTT (Divertor Tokamak Test) is a fusion reactor facility which is being built in the Research Centre of ENEA Frascati, to cope with the technological challenges related to the divertor system in DEMO. The magnetic system includes 18 toroidal field (TF), a central solenoid (CS) composed by 6 modules and 6 poloidal field (PF) coils. These last are solenoids based on Nb3Sn for the 2 more...
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Dr Luigi Muzzi02/07/2025, 14:30Poster
The design of the Central Solenoid (CS) for the “Divertor Tokamak Test” (DTT) facility has evolved through different options, investigated with the aim to satisfy the demanding magnetic flux performance required by the DTT scientific program, while providing a robust solution from the manufacturing and operational point of view.
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In the present paper we illustrate the current design choice,... -
Clement Lorin02/07/2025, 14:30Poster
The "SupraFusion" program is a French initiative dedicated to advancing High-Temperature Superconductor (HTS) technology. HTS materials enable ultra-high magnetic fields (>20 T) at low temperatures (4 K - 20 K), potentially revolutionizing fields such as fusion energy, wind power, and medical imaging. The program's primary goal is to establish France as a leader in HTS research and innovation,...
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