Fusion Pioneer Ed Guise - HTS magnets: unlocking their amazing properties

HTS magnets are a key part of our pioneering approach to fusion energy. Our Fusion Pioneer, Cryogenics Engineer Edward Guise, explains how our advanced HTS magnets work, and how cryogenics allows us to unlock their amazing properties.
He explains how we’ll cool the magnets in our new, world-leading Demo4 test programme, and why it’s such an important step on our pathway to commercialising fusion energy.

[@fl0ze3]

excellent progress, very landmark in the perspective of achievements apart of this energy field evolving worldwide

[@john-r-edge]

See the RUclips talks by Dennis Whyte of MIT. There he explains why the high magnetic fields are the key to practical fusion reactors. The power of a fusion reactor scales with the fourth power of the magnetic field strength. That puts into play quite small reactors with high energy output - without HTS fusion teactors have to be much bigger to get the energy, and big reactors very hard and expensive to build - see ITER for example.

[@diraziz396]

INTERESTING. GOOD LUCK

[@eddjordan2399]

This highlights how important a stable magnetic field is in a fusion reactor.

[@xxwookey]

Could someone explain why lower temps allow higher currents? If you've got down to zero resistance then the relationship between current and heating due to resistance loses is gone, so it's not clear to me what limits the max current at this point, nor why further temp reductions allow more of it.

[@MrAlexs888]

the difference between 99% and 99,999999% isnt much but it matters alot

[@AlexD000]

Yes, superconductors have zero electrical resistance up to a critical current. Above the critical current, the superconductor becomes resistive. The critical current of a superconductor is dependent on temperature, and at lower temperatures the critical current will be higher, hence why at lower temperatures we can operate at higher currents.

[@theharemking545]

Cryogenics are cool!

[@martinperry1843]

Once a month Tokamak Energy has a new video about how important HTS magnets are. There's never any new information or updates on progress, just recapping how important HTS magnets are. Do they make a new video every time or do they make them en masse and release them slowly?

[@iditarod4081]

He's not a pioneer he's just a researcher at this stage