Magnetics Business & Technology - May/June 2024 - 8

FEATURE ARTICLE
Wendelstein 7-X at IPP is a large stellarator with modular superconducting coils which enable steady state plasma operation. (Image: MPI for
Plasma Physics)
Continued from page 7...
In another recent move, Gauss agreed with two other German
fusion startups, Proxima and Focused Energy, to bundle their
research and development activities in several areas in order
to make faster progress. Even though Gauss and Proxima both
pursue a magnet-based fusion approach and Focused Energy
a laser-based fusion concept, the cooperation is envisioned to
result in increased clout for further technological leaps on the way
to the commercialization of fusion energy. Focused Energy is a
German-American company spun out from TU Darmstadt in 2021
and now dually based in Darmstadt and Austin, Texas.
The partners not only aim to work together on technical issues,
but also to address general challenges together. For example,
they plan to collaborate on the development of a binding legal and
regulatory framework, to support the education and training of
specialists, and to work toward broad and informed acceptance of
fusion energy among the public.
Proxima, based in Munich, is developing quasi-isodynamic (QI)
stellarators where toroidal currents cancel out to zero, resulting in
8 Magnetics Business & Technology * May/June 2024
uniquely robust features. The German-funded W7-X facility, an invaluable
prototype and testbed for the concept, is close by at the
Max Planck Institute of Plasma Physics. Proxima is the first spinout
company from the institute and three quarters of the founding
team are from it. Their immediate objective is to build a new stellarator
power plant prototype in Munich in the early 2030s.
Wendelstein 7-X is the world's largest fusion device of the stellarator
type, designed to investigate its suitability for a power plant
by testing an optimized magnetic field for confining the plasma.
The technical core piece of the device is a system of 50 non-planar
and superconducting magnet coils to produce the magnetic
field. A key benefit of QI stellarators is the complete absence of
plasma currents, and hence current-driven instabilities which can
result in disruptions in other tokamak and stellarator concepts.
Because the fusion fire only ignites at temperatures above 100
million degrees, the fuel - a thin hydrogen plasma - must not
come in contact with cold vessel walls, leading the IPP to pursue
the path of magnetic fusion. Held by magnetic fields, the plasma
floats almost contact-free inside the vacuum chamber.
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Table of Contents for the Digital Edition of Magnetics Business & Technology - May/June 2024

Contents
Magnetics Business & Technology - May/June 2024 - Cover1
Magnetics Business & Technology - May/June 2024 - Cover2
Magnetics Business & Technology - May/June 2024 - Contents
Magnetics Business & Technology - May/June 2024 - 4
Magnetics Business & Technology - May/June 2024 - 5
Magnetics Business & Technology - May/June 2024 - 6
Magnetics Business & Technology - May/June 2024 - 7
Magnetics Business & Technology - May/June 2024 - 8
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Magnetics Business & Technology - May/June 2024 - 11
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Magnetics Business & Technology - May/June 2024 - Cover3
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