Rui F. Vieira is an 🏷️#engineer and Deputy Head of Magnetic Fusion Energy Engineering at the 📝MIT Plasma Science and Fusion Center. He is first author of "Design, Fabrication, and Assembly of the SPARC Toroidal Field Model Coil" (DOI 10.1109/TASC.2024.3356571), published in IEEE Transactions on Applied Superconductivity in 2024 with fifty-two co-authors and 📝Zachary Hartwig last — the paper on how the 📝Toroidal Field Model Coil (TFMC) was physically made.

That author list is the point. Building the coil meant winding roughly 267 kilometers of 📝REBCO tape into a 📝no-insulation coil about three meters tall, holding tolerances through a structure that must survive the electromagnetic loads a 20-📝tesla field imposes on itself, and then assembling it once, correctly. The coil reached 20.1 tesla peak field on conductor at 40.5 kiloamps on September 5, 2021 — measured, not modeled — and the eighteen 📝toroidal field coil magnets built for 📝SPARC descend from the design and fabrication route this paper records. Vieira's contribution sits with the rest of 📝The TFMC Engineering Papers.