Tevatron’s construction program built up a lot of industrial capacity for superconducting magnets. This was by design, in the hopes that it would drive induced demand for them. One of the first beneficiaries were MRI machines, which became a lot more affordable to produce.
The DOE hoped to repeat that success in the 1990s with the much larger SSC, but it was cancelled.
ISABELLE, which was a cancelled proton-proton collider. Major delays with its magnet design meant that it was overtaken by existing programs at CERN and Fermilab. RHIC reused its hall.
The DOE hoped to repeat that success in the 1990s with the much larger SSC, but it was cancelled.