Thank you for idea, and yes I enjoyed imagining that! I wonder how it would fit with the back story: an Earthling swept to a distant galaxy where they save the Earthling's life by inserting a Particle Accelerator as a permanent power source into a "corresponding body part".
Update: I looked it up and I think it could work, for example CERN is a ring shape, and particles can achieve higher energy levels than a linear one. Ok, this gives me an idea for another character in the story -- Thank you!!