Peak Field 16.84 T
The magnet system is designed for 16.84 T peak field at the conductor with 8 T on axis, the field that makes a compact machine reach gain.
The design field
The breeder's magnet system is designed for a peak field of 16.84 T at the conductor and 8 T on the plasma axis. Field is what confines the plasma and enables fusion; high field is what lets a compact machine reach the design gain of Q_sci 3.076.
Peak versus on-axis
The 16.84 T peak occurs at the conductor, where the field is strongest; the 8 T on-axis value is what the plasma experiences at its center. The gap reflects geometry: field falls off from the coils to the plasma. Both figures matter, the peak sets the engineering limit, the on-axis value sets the plasma physics.
Why this field is demanding
- 16.84 T requires REBCO high-temperature superconductor at high current density
- The field produces large Lorentz forces concentrated in the centerpost
- Maintaining superconducting margin and quench protection at this field is hard
Where it is proven
The magnet gate G2 exists to prove exactly this: that the coil set reaches and holds 16.84 T peak with 8 T on axis under operational load. Achieving the field is a precondition for plasma operation and for the confinement gate that follows.
16.84 T is a design target for a machine not yet built. It rests on REBCO conductor supply and magnet fabrication meeting their qualification criteria, and it becomes a demonstrated value only when G2 is passed.