The Fusion Hardware Behind Kronos's Founders
Kronos's founding scientists didn't just study fusion — they built it. Their hands-on record spans the record-setting Alcator tokamaks, the SPARC high-field tokamak, world-record research magnets, and steady-state D–³He fusion.
- Alcator C (MIT)
- Carl Weggel — 14 T toroidal-field magnet (record high field)
- Alcator A (MIT)
- Robert Weggel — tokamak magnets (record continuous field)
- SPARC (Commonwealth Fusion)
- Carl & Robert Weggel — high-field HTS magnets
- UW–Madison IEC devices
- Gerald Kulcinski — steady-state D–³He fusion
Plenty of fusion ventures have theorists. Kronos's founding scientists have something rarer: a hands-on record of actually building fusion machines and the magnets that make them work — the record-setting hardware of the field. It's the difference between a design on paper and a design by people who have done this before.
| Machine | Founder & contribution |
|---|---|
| Alcator A (MIT) | Robert Weggel — magnets for a tokamak that set the record for the most intense continuous magnetic field (a Guinness world record) |
| Alcator C (MIT) | Carl Weggel — designed its 14-tesla toroidal-field magnet, part of a record-setting high-field tokamak |
| SPARC (Commonwealth Fusion Systems) | Carl & Robert Weggel — worked on the high-field HTS magnets for the leading compact-fusion tokamak |
| Brookhaven solenoids | Robert Weggel — superconducting and hybrid solenoids of 20 tesla and above |
| UW–Madison IEC devices | Gerald Kulcinski — built and ran inertial-electrostatic-confinement devices that achieved steady-state deuterium–helium-3 fusion |
The thread is unmistakable: the high-field tokamak lineage (Alcator → SPARC → Kronos) and the low-neutron D–³He fuel physics that Kronos commercializes were built, in part, by the very people now designing MetroVolt. Their expertise is stamped on the 24.6 T magnet system and the D–³He fuel cycle.
Drawn from the public record of the founders' published work and institutions (MIT Plasma Fusion Center / Alcator; Commonwealth Fusion Systems / SPARC; University of Wisconsin–Madison Fusion Technology Institute). Contributions to Kronos are made in a personal capacity and do not constitute institutional endorsement.