CT scan room and machine is going to need a lot of cleaning.
The actual scanning itself only takes a moment. We do head ones and they're surprisingly fast once everything's ready to go.
That's one every 4 minutes.
I wonder if you could somehow isolate the patient rather than deep-clean the machine (ours has some exposed moving parts, which would make that time-consuming, but perhaps the non-research ones are better designed).
That's what I would do. Someone else that claims to be a radiology tech said you just need to wipe the machine down for SARS since it's spread by droplets and fluids.