@brooklyn22, that's what I'd be thinking and some research supports your suspicion. https://pmc.ncbi.nlm.nih.gov/articles/PMC8945963/
Another advantage over other technology is MRI guidance. Real time positioning of the targeted area where the machine just stops sending radiation without human response delay is a great advantage over the clumsier CT not-real time guidance.
You might locate the equipment before finding the radiologist. If you tell us your city, we might know where to look.
Five is so much easier and less expensive.
This is somewhat adrift of the conversation, but two years ago I was looking everywhere for The MIRidian Viewray for a friend with prostate cancer. So I know they have them at UCLA, City of Hope, Hoag. Stanford didn't but does and I think has the latest rendition. https://www.youtube.com/watch Mayo didn't, but might now.