Not sure how representative I am here, but I had no idea that the magnets were powered up except during the scan. My layman's understanding was that they alway

Not sure how representative I am here, but I had no idea that the magnets were powered up except during the scan. My layman's understanding was that they always kept the superconductors fully chilled, but I assumed they only ran electricity through them when needed. Only as I'm writing this does it occur to me that because of the superconduction, the magnets will remain energized for a very long time unless intentionally discharged.