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42 Tesla magnet, size of drum

42 Tesla magnet, size of drum

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https://phys.org/news/2026-03-palm-sized-superconducting-magnet-tesla.html

Pretty amazing development, 1000 amps of current to get to 38-42 teslas, the world record is some 45 teslas and that one consumes 20 MEGAWATTS.

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@sonhouse said
https://phys.org/news/2026-03-palm-sized-superconducting-magnet-tesla.html

Pretty amazing development, 1000 amps of current to get to 38-42 teslas, the world record is some 45 teslas and that one consumes 20 MEGAWATTS.
And we have to take into account the volume in whihc the field is having that strength.

Mosty very high magnetic fileds are being researched in nuclear fusion and are designed to affect a rather high volume.

That is not to belittle the achievement, but to take the energy consumption intoa framework.


@Ponderable said
And we have to take into account the volume in whihc the field is having that strength.

Mosty very high magnetic fileds are being researched in nuclear fusion and are designed to affect a rather high volume.

That is not to belittle the achievement, but to take the energy consumption intoa framework.
The volume is in a 3.5 mm tube inside the main windings. That is where the 42 T lies so everything in the experiment needing that strength has to be designed to be less than say 3mm wide for all the wires and sensors and whatever else, optic fiber maybe.