[quote] during IORT, Inraoperative Radiation Therapy, the RO is present during surgery with the surgical team, along with the physicist, to do system checks, protect structures, place radiation pads, calculate dosage and RO is the one who presses the red button remotely from a leaded room in the OR to deliver radiation, along with the rest of the surgical team. [/quote]Thanks for the details on IORT. I have seen the acronym but not aware of the details. Certainly, in this sort of adhoc, real-time planning and zapping with no map, you need the wizard and sidekicks there but even they do magic from the "control" room, not the operating theatre.