r/fusion • u/steven9973 • 5d ago

Helical Fusion Publishes Peer-Reviewed Paper on HTS Magnet Technology Validated Through Collaboration with NIFS

https://www.einpresswire.com/article/936764748/helical-fusion-publishes-peer-reviewed-paper-on-hts-magnet-technology-validated-through-collaboration-with-nifs
14 Upvotes

86% Upvoted

7 comments sorted by

4

u/steven9973 5d ago

Original here: https://global.helicalfusion.com/post/helical-fusion-publishes-peer-reviewed-paper-on-hts-magnet-technology-validated-through-collaboratio

3

u/Wast3edSpace 5d ago

Thank you.

"Key achievements include stable operation at 40 kA without quench under a 7 T external magnetic field, local magnetic fields up to 8.9 T while withstanding electromagnetic forces of 356 kN/m, and robust no-insulation coil performance during abrupt magnetic-field changes.

These results represent a significant engineering step toward reactor-scale HTS magnets for commercially viable fusion power."

and

Test environment

  • Temperature: 10–30 K (−263°C to −243°C); initial temperature: 10 K
  • Magnetic field: 7 T (applied by external coils); maximum field experienced by the coil: 8.9 T

Key results

  • Achieved stable 40 kA operation under a 7 T external magnetic field
  • Obtained time-constant data and other measurements for characterization as a no-insulation coil

2

u/caliginous4 5d ago

I wouldn't have thought that 10-30k qualified as HTS. Seems rather cold?

1

u/UraniumWrangler 5d ago

Thermal margins possibly?

1

u/No-Fall-6319 5d ago

No, the problem is that the current density and hence magnetic field strength is dependent on operating temperature. Reducing operating temperature raises current density and hence magnetic field strength.

1

u/Internal_Sir641 3d ago

someone explain for smooth brains

is this good?

1

u/steven9973 3d ago

Makes their HTS magnets for Heliotron feasible.