The architecture of STEP has been developed to enable a hybrid maintenance approach, using ports in the vacuum vesselor a limited list of tasks that must be performed shortly after shutdown, and larger openings to simplify and speed-up major refits. Robotic handling systems in zero-human entry facilities will prevent workers from being exposed t…
Rare-earth-barium-copper-oxide (REBCO) coated conductor tapes within next-generation tokamak pilot and power plant magnets will be exposed to broad-spectrum gamma-ray and neutron irradiation concurrently. It has been known since the 1980s that cumulative neutron fluence affects the superconducting properties of REBCO, but the effects of gamma rays …
